34 results for Machine Learning Nlp Ai Engineer jobs

Sr. Machine Learning Engineer

Tokyo,
remote
Permanent
8.0M - 14.0M JPY / Yearly
🌟 Senior Machine Learning Engineer Join a fast-growing AI startup building a Deep Search & Analytics platform that transforms video, audio, and text into actionable intelligence. About the Role Help build a Deep Search & Analytics platform that transforms video, audio, and text into actionable intelligence. Key Responsibilities Develop bilingual NLP (Japanese + English) solutions Build computer vision pipelines (OCR, detection, classification) Fine-tune and optimize LLMs (quantization, embeddings, hybrid search) Work with vector DBs (Milvus, LanceDB, Qdrant) to scale retrieval What Makes This Role Unique Rare Japanese NLP + LLM focus Cutting-edge multi-modal AI (text, vision, video) Opportunity to shape product direction in a high-growth startup Perks & Benefits Hybrid work Competitive comp + performance incentives International, innovation-driven teamBy clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS42ODQ0OS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-08T05:04:05Z

AI Software Engineer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
Company ProfileJoin a dynamic engineering team focused on developing cutting-edge AI solutions. This role involves designing and implementing machine learning models, building scalable software systems, and contributing to the advancement of intelligent technologies across various applications.The Role<ul><li>Design, develop, and evaluate AI models (e.g., NLP, computer vision, predictive analytics)</li><li>Implement and optimize software using Python, C++, or other relevant languages</li><li>Build and maintain AI systems on cloud platforms (e.g., AWS, GCP)</li><li>Collaborate with data scientists, product managers, and engineers to define requirements and deliver solutions</li><li>Document technical specifications and participate in code reviews</li></ul>Your Skills <ul><li>Bachelor's degree or higher in Computer Science, Engineering, or a related field</li><li>Hands-on experience with machine learning and deep learning frameworks (e.g., TensorFlow, PyTorch)</li><li>Proficiency in Python and familiarity with software development best practices</li><li>Strong analytical and problem-solving skills</li><li>Ability to communicate technical concepts effectively in English</li></ul>Location Tokyo, JapanSalaryHourly Rate : 4,940 JPY Reference Number: 06940-0013312157 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjU5MTc2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-11-07T03:27:58Z

AI Engineer

Tokyo,
remote
Permanent
10.0M - 10.0M JPY / Yearly
Company ProfileA leading innovator in construction solutions is expanding its capabilities in Artificial Intelligence to enhance products and services through cutting-edge technologies. You will be joining a rapidly growing AI division within the Data Value Creation Group. This team analyzes industry challenges, identifies innovative data-driven solutions, and develops state-of-the-art AI technologies both in-house and with external partners-pushing the boundaries of what's possible in the construction sector.The Role In this role, you will:<ul><li>Identify and address technical challenges in areas related to Smart Construction, both within the company and for clients</li><li>Collaborate with AI specialists and cross-functional teams to design and implement AI, ML, or optimization-based solutions</li><li>Contribute to spreading AI literacy throughout the organization</li><li>Participate in the full lifecycle of AI solutions, from ideation and research to deployment</li></ul>Mandatory Requirements<ul><li>Master's degree in Deep Learning, Machine Learning, Data Science, Artificial Intelligence, Computer Science, or a related field with at least 2 years of experience building ML models OR PhD in a relevant field with related thesis/publications</li><li>Solid understanding of modern ML technologies, models, and methods</li><li>Strong foundation in data analytics</li><li>Hands-on experience with Python, PyTorch, and other modern ML libraries</li><li>Ability to understand academic research papers and translate insights into practical applications</li><li>Strong technical communication skills in English</li></ul>Preferred Qualifications<ul><li>Industrial or academic experience with Point Clouds/NERFs, Diffusion Models, Transformers, Deep Reinforcement Learning, or Evolutionary Algorithms</li><li>Experience designing, building, or optimizing models in the above areas</li><li>Familiarity with cloud platforms such as AWS, GCS, or Azure</li><li>Experience packaging and deploying ML models</li><li>Background or interest in civil engineering</li></ul>Ideal Candidate Profile<ul><li>Motivated to solve social and industry-wide challenges</li><li>Intellectually curious, eager to learn new technologies</li><li>Excited to take on ambitious challenges and transform the industry</li><li>Interested in applying AI to create value in Japan and globally</li><li>Internationally minded and open to living in/around Tokyo </li></ul>Salary 10M JPYLocationTokyo Reference Number: 06940-0013206595By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c3VlLnRpbmcuNjI5MzMuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-01T05:57:59Z

Senior Software Engineer

Fukuoka,
remote
Permanent
9.0M - 15.0M JPY / Yearly
Company ProfileThis technology company drives digital transformation in the financial sector through the strategic use of AI and data. Utilizing AI, data analytics, and modern architecture, the firm develops proprietary products and solutions for financial institutions. With offices in both Tokyo and Fukuoka, the company is leading industry-wide transformation and the creation of new value.The RoleAs a Senior Application Engineer, you will lead the development team for finance-focused proprietary products utilizing AI and data technologies. Your responsibilities span everything from feature design to implementation and operations, driving scalability and performance improvements of the systems. You will also proactively build and improve agile development frameworks, collaborating with remote teams across Tokyo and Fukuoka.Your Skills <ul><li>3+ years of software development experience (Python / Go / Java / Kotlin / C++ etc.)</li><li>1+ year of experience as a tech lead or in an equivalent leadership role</li><li>Experience with Git and building CI/CD pipelines, as well as agile development experience</li><li>Japanese language: JLPT N1 or above; English language: ability for technical communication</li><li>Bachelor's degree or above</li></ul>Preferred Qualifications<ul><li>Experience in AI/LLM development or building machine learning models</li><li>Experience in the financial industry</li><li>Hands-on experience with team building in startups or remote environments</li></ul>Key Highlights of the Role <ul><li>Opportunity to lead development of products implemented at major financial institutions</li><li>High level of discretion in technology selection and architecture design</li><li>Fast decision-making in a flat organizational culture</li><li>Hybrid work style (remote work available); 122 annual holidays</li><li>Access to company ChatGPT accounts, learning support including study groups and conference participation</li><li>Annual salary expectations: 9M-15M JPY; family, health, and personal development support systems available</li></ul>Location FukuokaSalary 9-15 million JPYReference Number: 06940-0013333194By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuNjk1ODYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-11-13T08:20:42Z

AI Agent Engineer

Tokyo,
remote
Contract
11.9M - 11.9M JPY / Yearly
Location: Tokyo Salary: ¥11,856,000 annual Reference Number:06940-0013272619<hr data-start="232" data-end="235" /><h3 data-start="237" data-end="263">Position Overview:</h3>We are looking for a skilled LLM Agent Engineer to join our AI team. In this role, you will drive the development and optimization of intelligent agent systems, focusing on improving agent performance, enhancing observability, and refining evaluation pipelines through data-driven approaches.<h3 data-start="562" data-end="591">Key Responsibilities:</h3><ul data-start="592" data-end="1507"><li data-start="592" data-end="715">Agent Performance Monitoring: Improve monitoring systems for AI agents to ensure optimal performance and reliability.</li><li data-start="716" data-end="834">LLM Evaluation Pipelines: Design and implement evaluation pipelines and benchmarks tailored to LLM applications.</li><li data-start="835" data-end="948">Operational Support: Resolve operational issues, ensuring continuous system stability and high performance.</li><li data-start="949" data-end="1066">Iterative Agent Improvement: Lead the enhancement of LLM agents based on performance metrics and user feedback.</li><li data-start="1067" data-end="1193">Agile Practices: Actively contribute to daily scrums, sprint planning, and sprint reviews. Reporting will be in English.</li><li data-start="1194" data-end="1303">Documentation: Maintain clear documentation of services and models for internal teams and stakeholders.</li><li data-start="1304" data-end="1404">Collaboration: Engage in daily communication through Slack and meetings, primarily in English.</li><li data-start="1405" data-end="1507">Code Reviews: Ensure high engineering standards through thorough documentation and code reviews.</li></ul><h3 data-start="1509" data-end="1541">Required Qualifications:</h3><ul data-start="1542" data-end="1937"><li data-start="1542" data-end="1650">Experience in LLM Agent development, particularly with frameworks like LangChain or LangGraph.</li><li data-start="1651" data-end="1751">Proven track record in developing AI/LLM evaluation pipelines and performance measurement systems.</li><li data-start="1752" data-end="1841">Strong background in software engineering, emphasizing maintainable and clean code.</li><li data-start="1842" data-end="1937">A data-driven mindset, with the ability to analyze and act on metrics to improve performance.</li></ul><h3 data-start="1939" data-end="1972">Preferred Qualifications:</h3><ul data-start="1973" data-end="2221"><li data-start="1973" data-end="2049">Familiarity with MCP (Model Context Protocol) or similar technologies.</li><li data-start="2050" data-end="2136">Knowledge of statistics and data science for advanced modeling and analysis.</li><li data-start="2137" data-end="2221">Experience with Databricks for data processing and machine learning workflows.</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/V2lsbC5GaXRjaC44NDA4MC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-04T04:28:26Z

Enterprise Architect

Tokyo,
remote
Permanent
20.0M - 20.0M JPY / Yearly
Job Description<ul><li>Proven experience delivering modernization initiatives for legacy systems at scale.</li><li>Comprehensive knowledge of cloud platforms and integrating artificial intelligence and machine learning solutions.</li><li>Skilled in DevOps methodologies and tools including container orchestration technologies.</li><li>Track record of leading enterprise architecture transformation projects for various sectors.</li><li>Experienced in presenting to executive-level stakeholders. Demonstrated ability to collaborate across teams and manage stakeholder relationships effectively.</li><li>Native-level proficiency in Japanese and professional fluency in English.</li></ul>Reference No. ：06940-0013325954 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/b3NrYXIudGFrZW5ha2EuNjY3NTEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-11-17T08:31:01Z

SRE

Tokyo,
remote
Permanent
9.0M - 15.0M JPY / Yearly
About the RoleAs a Site Reliability Engineer (SRE) or Platform Engineer you'll be responsible for the reliability of our systems and developer experience.From day 1, you will build resilient, scalable, and highly reliable systems that solve operational challenges. This role is divided into two specializations:<ul><li>Core SRE: Implement SRE practices across the organization</li><li>Embedded SRE: Work deeply within specific development teams to improve team and product operations together</li></ul>Key Responsibilities<ul><li>Build and maintain tools and processes to automate system operations, monitoring, and management</li><li>Design and implement alerting and monitoring systems; participate in on-call rotation</li><li>Create scripts and build automation to reduce toil</li><li>Collaborate with development teams to identify and address performance bottlenecks, optimize system architecture, and respond to incidents</li><li>Design and implement solutions to improve system reliability and scalability</li></ul>Requirements<ul><li>3+ years of SRE experience</li><li>Web application or library development experience, OR experience developing automation tools and CI/CD tools using Golang, Python, or similar languages</li><li>Experience managing public cloud services (Google Cloud, AWS, or Azure) using IaC tools (Terraform, CloudFormation, Ansible, etc.)</li><li>Experience managing or operating container orchestration platforms (Kubernetes, AWS ECS, etc.)</li></ul>Preferred Qualifications<ul><li>Experience with IAM and organization management on public cloud platforms (Google Cloud, AWS, or Azure)</li><li>Experience building infrastructure and pipelines for generative AI or machine learning</li><li>Experience handling system incidents such as high server load or database throughput degradation</li><li>Practical experience with SRE concepts such as error budgets and postmortems</li><li>Knowledge of large-scale distributed systems challenges including scalability, fault tolerance, and consistency</li></ul>What We Offer<ul><li>Challenging and interesting work in a fast growing AI start-up</li><li>Collaborate with product, AI, and security teams across the organization</li><li>Shape SRE practices and platform engineering standards</li><li>Hybrid/remote-friendly work</li></ul>Location TokyoSalary9 - 15 million yen Reference Number: 06940-0013318774-----By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/TmFuY3kuWXVhbi43NTM1NC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-16T08:22:30Z

Data Engineer

Tokyo,
remote
Contract
7.9M - 7.9M JPY / Yearly
Location: Tokyo JO: 06940-0013315515 Annual Salary: JPY 7,904,000<h4 data-start="266" data-end="297">Department Overview:</h4>The Data Lakehouse Section is responsible for providing scalable Lakehouse platform solutions to support the business and operations of the organization. Our mission is to accelerate the use of data by providing flexible platforms that can host a wide range of data solutions.<h4 data-start="576" data-end="605">Position Overview:</h4>This position is focused on developing and managing data warehouse solutions using a Lakehouse platform on Azure. The role involves understanding business requirements, implementing data solutions, and supporting daily operations for the platform.<h4 data-start="855" data-end="887">Key Responsibilities:</h4><ul data-start="888" data-end="1306"><li data-start="888" data-end="1000">Develop and manage data warehouse solutions for business operations using Databricks and other relevant tools.</li><li data-start="1001" data-end="1088">Implement business requirements into the platform and ensure smooth daily operations.</li><li data-start="1089" data-end="1152">Design, implement, and optimize data pipelines and workflows.</li><li data-start="1153" data-end="1236">Collaborate with internal teams to troubleshoot and enhance platform performance.</li><li data-start="1237" data-end="1306">Support continuous improvement initiatives for data infrastructure.</li></ul><h4 data-start="1308" data-end="1335">Required Skills:</h4><ul data-start="1336" data-end="1770"><li data-start="1336" data-end="1397">3+ years of development experience, preferably with Python.</li><li data-start="1398" data-end="1471">Experience working with public cloud platforms (e.g., GCP, AWS, Azure).</li><li data-start="1472" data-end="1545">Proficiency in Databricks or similar platforms for big data processing.</li><li data-start="1546" data-end="1638">Ability to write clean, production-level code that is maintainable and easy to understand.</li><li data-start="1639" data-end="1770">Experience with common machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries (e.g., scikit-learn, NumPy, pandas).</li></ul><h4 data-start="1772" data-end="1800">Preferred Skills:</h4><ul data-start="1801" data-end="2700"><li data-start="1801" data-end="1913">Experience with the deployment and training of machine learning models and MLOps tools (e.g., MLFlow, Seldon).</li><li data-start="1914" data-end="1979">Experience with RESTful APIs and batch processing applications.</li><li data-start="1980" data-end="2120">Familiarity with the full software development lifecycle, including agile development practices and using task management tools like JIRA.</li><li data-start="2121" data-end="2206">Experience with microservice development and operation using Docker and Kubernetes.</li><li data-start="2207" data-end="2282">Knowledge of big data technologies such as Spark, Kafka, Delta Lake, etc.</li><li data-start="2283" data-end="2352">Experience with data modeling and observability of data and models.</li><li data-start="2353" data-end="2418">Experience with production engineering practices such as CI/CD.</li><li data-start="2419" data-end="2464">Performance profiling and tuning expertise.</li><li data-start="2465" data-end="2550">Experience in developing distributed, scalable, and high-availability applications.</li><li data-start="2551" data-end="2630">Understanding of GPU-based applications, machine learning, and deep learning.</li><li data-start="2631" data-end="2700">Experience with orchestration tools such as Airflow, Kubeflow, etc.</li></ul><h4 data-start="2702" data-end="2732">Personal Qualities:</h4><ul data-start="2733" data-end="2968"><li data-start="2733" data-end="2789">Strong problem-solving skills and analytical thinking.</li><li data-start="2790" data-end="2849">Ability to collaborate effectively in a team environment.</li><li data-start="2850" data-end="2898">Eagerness to learn and apply new technologies.</li><li data-start="2899" data-end="2968">Goal-oriented and results-driven with a focus on achieving success.</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjAwNjIxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-31T03:07:20Z

Software Engineer (Fullstack)

Tokyo,
remote
Contract
7.0M - 9.5M JPY / Yearly
CLIENT HOT BUTTONS<ul><li>Team culture fit - someone who works well in collaborative environments</li><li>Open to feedback - actively seeks and incorporates input from team members</li><li>Can articulate thought process - able to explain technical decisions and reasoning clearly</li></ul>KEY REQUIREMENTS<ul><li>5+ years web development experience</li><li>2+ years TypeScript and React experience</li><li>Web based full stack engineer (react / nodejs)</li><li>2+ years UI testing tools (Cypress) and API experience</li><li>1+ years NodeJS or similar server technologies</li><li>Deployment infrastructure experience (AWS/GCP/Docker)</li><li>Full stack development with databases (PostgreSQL, MongoDB)</li><li>Source control (GitHub/GitLab) and CI/CD experience</li><li>No Japanese language requirement</li></ul>PRODUCT/PROJECT/TEAMProducts/Projects:<ul><li>AI Platform - a platform for AI growth, simplifying training, inference, MLops. Building safety, convenience and autonomy for automotive vehicles. The Portal is the primary interaction mode for all users.</li></ul>Tech Stack/Tools:<ul><li>TypeScript, React, NodeJS, AWS/GCP, Docker, PostgreSQL, MongoDB, Cypress, GitHub/GitLab</li></ul>Work Style:<ul><li>Hybrid 3x/week in office, collaborative development with PM and other engineers</li></ul>Location TokyoSalary7 - 9.5 million yen Reference Number: 06940-0013308616----- By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4yODk4Mi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T04:30:21Z

Software Engineer

Tokyo,
remote
Permanent
9.0M - 13.0M JPY / Yearly
Company Profile | 企業概要<ul><li>Innovative web solutions company building cutting-edge applications that maximize user experience and business outcomes is seeking a Senior Ruby on Rails Engineer to join their international team.</li></ul> The Role | 職務内容<ul><li>Deliver working web-based software using the Ruby on Rails framework in a hands-on technical capacity.</li><li>Propose solutions as a technology specialist within a small product team to drive optimal user experience and business results.</li><li>Collaborate with UX designers and cross-functional team members to build robust, scalable web applications.</li><li>Work with modern technologies including Turbo Frame, Turbo Stream, and Stimulus JavaScript framework.</li></ul> Your Skills | 応募資格<ul><li>-5+ years of recent commercial programming experience with strong emphasis on web solutions and Ruby on Rails.</li><li>-Expert understanding of Ruby on Rails, Ruby programming language, JavaScript, TypeScript, HTML, and CSS.</li><li>-Business-level Japanese and English proficiency (mandatory).</li><li>-Experience with AWS Services and Docker containerization.</li><li>-Degree in Computer Science or equivalent experience.</li><li>-Valid working visa for Japan (6+ months) or available for remote contract work until visa preparation.</li></ul> Key Highlights of the Role | おすすめのポイント<ul><li>20+ paid days off per year with flexible work hours and remote work opportunities.</li><li>Join an international team of talented creators who value your technical input.</li><li>Visa sponsorship available after 6-month trial period.</li><li>Work with cutting-edge technologies including real-time communication, CRDT, and generative AI APIs.</li></ul>Salary900,000 yen - 1,300,000 yenLocationTokyo Reference number : 06940-0013336854By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjkzMzUxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-11-18T07:53:55Z

Software Engineer

Tokyo,
remote
Contract
11.9M - 11.9M JPY / Yearly
Ref No: 06940-0013287783 Location: Tokyo (Remote OK within Japan) Salary: ¥11,856,000<hr data-start="261" data-end="264" /><h3 data-start="266" data-end="297">What You'll Be Working On</h3>A social application with over 400,000 users (as of September 2024), focused on supporting a specific adult demographic. Built with modern AI technology and an intuitive UI/UX, the platform sees 1 match every 4 seconds and 1,000 new signups daily. It offers users a private and secure space to express concerns beyond their personal and professional environments.As a Full-Stack Web Developer, you will be responsible for designing, developing, and maintaining both new and existing features. You will collaborate with customer support and design teams to improve user experience. Strong skills in both frontend and backend development and familiarity with modern web technologies are required.<hr data-start="1016" data-end="1019" /><h3 data-start="1021" data-end="1043">Technology Stack</h3>Languages & Frameworks<ul data-start="1073" data-end="1296"><li data-start="1073" data-end="1116">TypeScript, JavaScript, Python, Node.js</li><li data-start="1117" data-end="1126">React</li><li data-start="1127" data-end="1139">DynamoDB</li><li data-start="1140" data-end="1165">Git (Version Control)</li><li data-start="1166" data-end="1197">GitHub (Project Management)</li><li data-start="1198" data-end="1223">Slack (Communication)</li><li data-start="1224" data-end="1296">Jest, Amplify, GraphQL, AWS (ALB, EC2, Cognito, Lambda, S3), SCSS, SQL</li></ul><hr data-start="1298" data-end="1301" /><h3 data-start="1303" data-end="1342">Development Environment & Culture</h3>Team & Organization<ul data-start="1370" data-end="1569"><li data-start="1370" data-end="1408">Team size: Fewer than 10 engineers</li><li data-start="1409" data-end="1457">Engineers participate in performance reviews</li><li data-start="1458" data-end="1507">Monthly career check-ins with managers or CTO</li><li data-start="1508" data-end="1569">Engineers earning ¥8M+ annually without management duties</li></ul>Technical Culture<ul data-start="1595" data-end="1750"><li data-start="1595" data-end="1646">Engineers involved in executive decision-making</li><li data-start="1647" data-end="1700">Engineering leadership with technical backgrounds</li><li data-start="1701" data-end="1750">English communication opportunities available</li></ul>Developer Autonomy<ul data-start="1777" data-end="2079"><li data-start="1777" data-end="1830">End-to-end responsibility: design, build, operate</li><li data-start="1831" data-end="1887">Engineers drive technical debt and tool improvements</li><li data-start="1888" data-end="1925">Freedom to choose OS, editor, IDE</li><li data-start="1926" data-end="1964">Engineers estimate their own tasks</li><li data-start="1965" data-end="2013">Iterative development with flexible schedule</li><li data-start="2014" data-end="2079">Tech stack kept up-to-date (within 1 year of latest versions)</li></ul>Quality Assurance<ul data-start="2105" data-end="2323"><li data-start="2105" data-end="2151">Mandatory code reviews or pair programming</li><li data-start="2152" data-end="2191">Shared coding standards across team</li><li data-start="2192" data-end="2229">Multi-environment quality testing</li><li data-start="2230" data-end="2264">Continuous deployment/delivery</li><li data-start="2265" data-end="2323">Pull request-based workflows with full version control</li></ul><hr data-start="2325" data-end="2328" /><h3 data-start="2330" data-end="2355">Scale & Performance</h3><ul data-start="2356" data-end="2465"><li data-start="2356" data-end="2388">Concurrent users: thousands+</li><li data-start="2389" data-end="2431">DB tables: tens of millions of records</li><li data-start="2432" data-end="2465">High traffic: thousands of RPS+</li></ul><hr data-start="2467" data-end="2470" /><h3 data-start="2472" data-end="2494">Work Environment</h3><ul data-start="2495" data-end="2668"><li data-start="2495" data-end="2528">Full remote work within Japan</li><li data-start="2529" data-end="2553">Mid-day break system</li><li data-start="2554" data-end="2626">Family-friendly: team includes engineers with preschool-age children</li><li data-start="2627" data-end="2668">Flextime or discretionary work system</li></ul><hr data-start="2670" data-end="2673" /><h3 data-start="2675" data-end="2699">Benefits & Support</h3><ul data-start="2700" data-end="2845"><li data-start="2700" data-end="2765">Conference participation supported (tickets + business trips)</li><li data-start="2766" data-end="2809">Preferred-spec PC and displays provided</li><li data-start="2810" data-end="2845">Open to new graduate developers</li></ul><hr data-start="2847" data-end="2850" /><h3 data-start="2852" data-end="2877">Required Experience</h3>Must-Have<ul data-start="2895" data-end="3055"><li data-start="2895" data-end="2923">Performance optimization</li><li data-start="2924" data-end="2950">Remote work experience</li><li data-start="2951" data-end="2989">Feature enhancements and additions</li><li data-start="2990" data-end="3027">Release and deployment operations</li><li data-start="3028" data-end="3055">New feature development</li></ul>Nice-to-Have<ul data-start="3076" data-end="3231"><li data-start="3076" data-end="3112">Bug identification and reporting</li><li data-start="3113" data-end="3139">Refactoring experience</li><li data-start="3140" data-end="3187">Experience with large-scale traffic systems</li><li data-start="3188" data-end="3231">Load balancing and scalability planning</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjEwOTQ5LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-19T01:57:22Z

Android Engineer

Tokyo,
remote
Permanent
10.0M - 10.0M JPY / Yearly
Job Order: 06940-0013209966 Location: Tokyo (Remote-first, but relocation to Japan required) Salary: ¥10,000,000 annually<hr data-start="317" data-end="320" /><h3 data-start="322" data-end="357">Position: Android Engineer</h3>Join a growing team focused on building cross-border payment solutions used by high-profile global platforms. As the first Android Developer in this role, you'll play a key part in shaping mobile payment products, including a new POS app, SDK, and tap-to-pay functionality.<hr data-start="634" data-end="637" /><h3 data-start="639" data-end="668">Key Responsibilities:</h3><ul data-start="670" data-end="1130"><li data-start="670" data-end="761">Develop and maintain Android-based POS and Tap-to-Pay applications and SDK using Kotlin</li><li data-start="762" data-end="853">Collaborate with product managers and engineers to define and build new mobile features</li><li data-start="854" data-end="933">Partner with backend teams to ensure seamless mobile-to-server integrations</li><li data-start="934" data-end="1032">Participate in technical design reviews and contribute to the evolution of mobile architecture</li><li data-start="1033" data-end="1130">Contribute across the tech stack when needed (flexibility with languages/frameworks encouraged)</li></ul><hr data-start="1132" data-end="1135" /><h3 data-start="1137" data-end="1158">Requirements:</h3><ul data-start="1160" data-end="1554"><li data-start="1160" data-end="1233">3+ years of professional experience in mobile application development</li><li data-start="1234" data-end="1304">Proficiency with Android SDK and mobile development best practices</li><li data-start="1305" data-end="1369">Experience integrating RESTful APIs with mobile applications</li><li data-start="1370" data-end="1434">Strong understanding of UI/UX principles and design patterns</li><li data-start="1435" data-end="1512">T-shaped developer mindset - ability to contribute across technical areas</li><li data-start="1513" data-end="1554">Collaborative, team-oriented approach</li></ul><hr data-start="1556" data-end="1559" /><h3 data-start="1561" data-end="1586">Preferred Skills:</h3><ul data-start="1588" data-end="1794"><li data-start="1588" data-end="1636">Exposure to iOS development and architecture</li><li data-start="1637" data-end="1690">Familiarity with cross-platform mobile frameworks</li><li data-start="1691" data-end="1730">Business-level Japanese proficiency</li><li data-start="1731" data-end="1794">Previous experience working in or with Japanese organizations</li></ul><hr data-start="1796" data-end="1799" /><h3 data-start="1801" data-end="1818">Benefits:</h3><ul data-start="1820" data-end="2069"><li data-start="1820" data-end="1887">Remote-first work environment with Tokyo-based office available</li><li data-start="1888" data-end="1958">10 regular paid vacation days, plus 5 summer and 5 winter holidays</li><li data-start="1959" data-end="1979">Birthday holiday</li><li data-start="1980" data-end="2038">Self-learning budget to support continuous development</li><li data-start="2039" data-end="2069">Language training (Japanese)</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4xODY0Ni4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-03T05:53:14Z

Senior Linux Internals Engineer

Tokyo,
remote
Permanent
8.0M - 12.0M JPY / Yearly
A global cybersecurity leader is seeking a Senior Linux Internals Engineer to join their endpoint team in Tokyo. In this role, you'll design and develop Linux kernel-level components and system features that power next-generation threat detection. You'll work closely with security experts, backend developers, and product managers to deliver secure, scalable, and high-performance solutions. Key Responsibilities<ul><li>Design and optimize Linux kernel and system-level components for endpoint detection and response.</li><li>Conduct low-level debugging, performance profiling, and kernel-mode optimizations.</li><li>Collaborate with cross-functional teams to ensure secure, reliable delivery.</li><li>Review code and mentor engineers on Linux and C++ best practices.</li><li>Contribute to technical strategy and stay current with Linux kernel developments.</li></ul> Qualifications<ul><li>5+ years in Linux systems programming with deep knowledge of kernel internals.</li><li>Expert-level C++ (11/14/17) and modern system-level programming.</li><li>Proficiency with debugging/profiling tools (GDB, perf, ftrace, strace, auditd).</li><li>Familiarity with Git, Make, CMake.</li><li>Preferred: eBPF, scripting (Python/Bash), containerization (Docker/Kubernetes), cybersecurity background, leadership in remote/distributed teams.</li></ul> What's Offered<ul><li>Flexible hours with remote work options.</li><li>Strong focus on professional growth and continuous learning.</li><li>Collaborative and innovative team culture.</li></ul> Unique Highlights A rare opportunity to work at the intersection of Linux kernel engineering and cybersecurity, shaping technology with direct global impact. The company champions a culture of teamwork, resilience, inclusion, and bold innovation.Salary 8M - 12M JPYLocation Tokyo Reference Number: 06940-0013289584By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4zMDkxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-02T04:57:51Z

Software Engineer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
Software Engineer - Data PlatformAbout the Role We are seeking a software engineer to join the data platform team. In this role, you will design, develop, and maintain critical systems that enable our data ingestion and processing pipelines. You will leverage modern cloud-based technologies to ensure that our data infrastructure remains secure, efficient, and highly reliable.Key Responsibilities<ul><li>Develop and maintain robust data ingestion pipelines capable of processing large-scale datasets.</li><li>Collaborate closely with the Security and Privacy teams to ensure compliance with relevant standards and regulations.</li><li>Conduct integration, end-to-end, and load testing to identify and resolve issues in data pipelines.</li><li>Use observability tools to monitor production systems, setting up alerts and tracking their performance effectively.</li><li>Troubleshoot and resolve bugs and performance bottlenecks within data processing systems.</li></ul>What We're Looking For<ul><li>Proficiency in programming with Kotlin or Java.</li><li>Experience with cloud technologies (e.g., AWS), microservices, and event-driven distributed system architectures.</li><li>Strong database expertise, including SQL, relational databases, and NoSQL solutions.</li><li>Familiarity with data streaming tools such as AWS Kinesis, Kafka, Flink, or Spark.</li><li>Hands-on experience with Snowflake for data warehousing.</li><li>A solid understanding of monitoring, troubleshooting, and performance optimization for production systems.</li></ul> Reference No.: 06940-0013272616By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/V2lsbC5GaXRjaC41NDcxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-05T04:37:49Z

Software Engineer

Tokyo,
remote
Contract
10.8M - 10.8M JPY / Yearly
Client Profile Our client is mobility technology company focused on building software platforms and infrastructure for future transportation systems.Overview We are seeking a skilled Software Engineer to join the mobile development team. In this role, you will design, implement, and enhance mobile app features with a focus on performance, stability, and user experience. You will collaborate with cross-functional teams, contribute to clean and scalable architecture, and continuously improve our codebase and development processes.Key Responsibilities<ul><li>Develop and implement mobile app features and UI using Flutter</li><li>Collaborate closely with backend, UX, and other mobile engineers in cross-functional teams</li><li>Independently or jointly develop and deliver new features</li><li>Conduct unit testing and UI regression testing to ensure app quality</li><li>Debug and fix issues to maintain app stability</li><li>Monitor app performance and identify opportunities for improvements</li></ul>Requirements<ul><li>3+ years of mobile app development experience (Android or iOS) in a professional environment</li><li>Experience with native app development (Kotlin, Swift) or Flutter (Dart)</li><li>If no Flutter experience, proven ability to quickly learn new frameworks (e.g., ReactJS, SwiftUI, Jetpack Compose)</li><li>Strong knowledge of Clean Architecture and general software architecture practices</li><li>Hands-on experience with refactoring and improving codebases</li><li>Proactive, innovative mindset with a passion for improving products and processes</li><li>Willingness to learn new technologies and share knowledge with the team</li></ul>Hourly Salary5,200 JPYLocation Tokyo Reference Number: 06940-0013287776By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjM2Nzc1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-17T03:43:54Z

Data Engineer

Tokyo,
remote
Contract
8.1M - 8.1M JPY / Yearly
JO: 06940-0013310510 Location: Tokyo Annual Salary: Around ¥8,112,000Department Overview: The department manages and provides master data across multiple business units, delivering value through data-driven development. It also develops solutions for generating and assigning master data, supporting a variety of use cases.Position Outline: This position is an engineering role within the Product Master Group, responsible for managing standardized product data to enable end-users to search and interact with structured information more efficiently.Responsibilities:<ul data-start="699" data-end="911"><li data-start="699" data-end="822">Full-stack responsibility for data infrastructure and products, including design, development, testing, and operations.</li><li data-start="823" data-end="911">For experienced candidates: contribute to requirements definition and system design.</li></ul>Required Skills:<ul data-start="936" data-end="1714"><li data-start="936" data-end="1036">4+ years of professional experience in Data Engineering or Software Engineering focusing on data</li><li data-start="1037" data-end="1107">Strong proficiency in Java and Spring Boot (version 1.8 or higher)</li><li data-start="1108" data-end="1187">Experience with unit testing (e.g., JUnit) and performance-conscious coding</li><li data-start="1188" data-end="1248">Experience creating batch applications using Spring Boot</li><li data-start="1249" data-end="1337">Experience with relational databases (e.g., MySQL) and NoSQL databases (e.g., HBase)</li><li data-start="1338" data-end="1427">Solid understanding of database schema design, SQL tuning, and performance evaluation</li><li data-start="1428" data-end="1566">Experience with cloud platforms (AWS, GCP, Azure) and related services (e.g., Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery)</li><li data-start="1567" data-end="1630">Experience with Linux operating systems and shell scripting</li><li data-start="1631" data-end="1714">Experience working in a team environment and collaborating on design and coding</li></ul>Preferred Skills:<ul data-start="1740" data-end="1993"><li data-start="1740" data-end="1824">Experience with large-scale data processing systems (e.g., Apache Spark, Hadoop)</li><li data-start="1825" data-end="1875">Experience with API development (RESTful APIs)</li><li data-start="1876" data-end="1952">Experience with containerization technologies (e.g., Docker, Kubernetes)</li><li data-start="1953" data-end="1993">Experience with TypeScript or Python</li></ul>Language Requirements:<ul data-start="2024" data-end="2099"><li data-start="2024" data-end="2052">Japanese: Conversational</li><li data-start="2053" data-end="2099">English: Business level (e.g., TOEIC 800+)</li></ul>Contract Terms:<ul data-start="2123" data-end="2212"><li data-start="2123" data-end="2212">Initial contract: 2 months, with 3-month extensions expected for long-term employment</li></ul>Working Hours & Holidays:<ul data-start="2246" data-end="2328"><li data-start="2246" data-end="2291">Weekdays: 9:00-17:30 (Break: 12:00-13:00)</li><li data-start="2292" data-end="2328">Weekends and public holidays off</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjU3MzU2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-30T08:18:18Z

Data Engineer

Tokyo,
remote
Contract
5.0M - 7.0M JPY / Yearly
CLIENT HOT BUTTONS<ul><li>This team manages standardized product data that enables smoother end-user search experiences</li><li>Team operates 70% English, 30% Japanese - need someone comfortable in this bilingual environment without being slowed down by language barriers</li><li>Full-stack responsibility from design through operations - they want someone who can own the entire lifecycle, not just code</li></ul>KEY REQUIREMENTS<ul><li>MUST HAVE: 4+ years professional Data Engineering or Software Engineering with data focus</li><li>MUST HAVE: Strong Java and Spring Boot framework (version 1.8+) with unit testing and performance-conscious coding</li><li>MUST HAVE: Experience with both relational (MySQL) and NoSQL databases (HBase) including schema design and SQL tuning</li><li>MUST HAVE: Cloud platform experience (GCP preferred, AWS acceptable) with services like Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery</li><li>MUST HAVE: Linux OS and shell scripting experience</li><li>MUST HAVE: Team collaboration experience on detailed design and coding</li><li>LANGUAGE: Conversational Japanese (J4), Business English (E2)</li></ul>Products/Projects<ul><li>Product Master Group manages standardized and identified product data for commodity/item data, enabling end-users to search more smoothly with structured/organized data</li></ul>Tech Stack/Tools<ul><li>Java, Spring Boot 1.8+, MySQL, HBase, GCP (Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery), Linux, shell scripting. Nice to have: Apache Spark, Hadoop, Docker, Kubernetes, TypeScript, Python</li></ul>Work Style<ul><li>Full-stack responsibility covering design, development, testing, and operations. More experienced candidates contribute to requirements definition and system design. Team communication is 70% English, 30% Japanese</li></ul>Location TokyoSalary5 - 7 million yen Reference Number: 06940-0013302873By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi42ODAwNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T01:06:16Z

Software Engineer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
About the RoleJoin a forward-thinking team focused on building the future of mobility through software innovation. This role involves developing scalable, high-performance systems for applications ranging from embedded vehicle platforms to cloud-based services and autonomous technologies.Key Responsibilities<ul><li>Develop and maintain software components for mobility platforms and vehicle operating systems.</li><li>Collaborate with cross-functional teams including hardware engineers, designers, and product managers.</li><li>Contribute to system architecture and design discussions.</li><li>Implement automated testing and CI/CD pipelines to ensure software quality.</li><li>Research and apply emerging technologies to enhance system capabilities.</li></ul>Qualifications<ul><li>Bachelor's or Master's degree in Computer Science, Engineering, or a related field.</li><li>Strong programming skills in languages such as C++, Python, Rust, or Go.</li><li>Experience with cloud infrastructure (AWS, GCP, Azure) and containerization (Docker, Kubernetes).</li><li>Familiarity with embedded systems or automotive software standards is a plus.</li><li>Excellent problem-solving and communication skills.</li><li>English proficiency required; Japanese language skills are a plus.</li></ul>Preferred Experience<ul><li>Working with real-time systems or safety-critical software.</li><li>Contributing to open-source projects or large-scale software platforms.</li><li>Experience in agile development environments.</li></ul>Saraly: Hourly Rate: ¥5100-¥6120Reference Number: 06940-0013294835By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjg3ODM1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-24T03:18:33Z

Software Engineer

Tokyo,
remote
Contract
9.4M - 9.4M JPY / Yearly
Location: Tokyo JO: 06940-0013313061 Annual Salary: JPY 9,360,000<h3 data-start="177" data-end="205">Position Overview:</h3>Handle technical support requests, triage problems, basic troubleshooting, and update the support knowledge base. Manage customer requirements, monitor progress, and communicate with internal teams.<h3 data-start="406" data-end="437">Key Responsibilities:</h3><ul data-start="438" data-end="660"><li data-start="438" data-end="492">Support request handling and basic troubleshooting</li><li data-start="493" data-end="519">Knowledge base updates</li><li data-start="520" data-end="574">Customer requirement tracking and status reporting</li><li data-start="575" data-end="603">System integration tasks</li><li data-start="604" data-end="631">Access right management</li><li data-start="632" data-end="660">Internal team coordination</li></ul><h3 data-start="662" data-end="688">Required Skills:</h3><ul data-start="689" data-end="825"><li data-start="689" data-end="714">Experience in C++</li><li data-start="715" data-end="748">ECU knowledge (preferred)</li><li data-start="749" data-end="782">System integration experience</li><li data-start="783" data-end="825">Basic hardware knowledge (preferred)</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuNjk1MjguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-10-31T03:34:42Z

Full Stack Engineer

Tokyo,
remote
Permanent
8.0M - 15.0M JPY / Yearly
Company Profile A growing company providing a next-generation collaborative management platform that connects executives with operational teams. Our solution centralizes "people, assets, and capital" covering budgeting & forecasting, workforce planning, capital investment, and rebate management enabling fast, data-driven decision-making. Our strengths include an intuitive UI/UX and expert support leveraging insights from former corporate strategy professionals. In addition to our existing products, we are expanding into new enterprise solutions. Flexible, fully remote work arrangements are available.The Role This is an engineering position leading the technical side of new business initiatives in the management domain. You will work closely with Product Managers and business teams, driving end-to-end 0→1 development-from deeply understanding customer challenges to defining the MVP, designing the architecture, prototyping, and implementation. You will have significant discretion in technical decision-making and play a key role in directly shaping the direction of the product. Your Skills Must-Have:<ul><li>5+ years of experience in web application development</li><li>Experience developing with Ruby on Rails</li><li>Experience in architecture design and technology selection</li><li>Experience driving projects as a technical lead</li><li>Experience contributing to 0→1 phases of in-house product development</li></ul>Preferred:<ul><li>Experience working in Agile/Scrum environments</li><li>Ability to prioritize based on business requirements and domain understanding</li><li>Proactive experience in improving organizational or team processes</li><li>End-to-end experience from development to operations</li></ul>Key Highlights of the Role <ul><li>Fully remote work and flexible working arrangements</li><li>Significant autonomy to technically lead 0→1 development of new business initiatives</li><li>Opportunity to collaborate closely with Product Managers, corporate planning, and design teams to create customer-driven products</li><li>End-to-end involvement from architecture design to prototyping and iterative improvements</li><li>Career growth potential toward Tech Lead or VPoE roles</li><li>The chance to tackle high-impact product development in the challenging domain of management solutions, delivering real value</li></ul>Location TokyoSalary 8－15 million yen Reference Number：06940-0013337685 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuNzQ3MTYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-11-19T03:12:32Z

Software Engineer

Tokyo,
remote
Contract
7.0M - 9.0M JPY / Yearly
LIENT HOT BUTTONS<ul><li>Someone who can take instructions and develop independently with critical thinking - not just following orders blindly but understanding the "why" behind tasks</li><li>Team-oriented mindset - actively contributes to team success rather than only pursuing individual achievements; comfortable in a collaborative 13-person multicultural environment</li><li>Not motivated primarily by overtime pay - team policy is not to aim for zero overtime, but this isn't a role for those looking to maximize earnings through OT</li></ul>KEY REQUIREMENTS<ul><li>MUST: Mastery of at least ONE of: Java, C/C++, or Go-Lang</li><li>MUST: Database development experience</li><li>MUST: Web application development experience (both frontend and backend)</li><li>MUST: Strong team communication skills - able to build good relationships with team members</li><li>MUST: Japanese native level with conversational English OR English native with business beginner Japanese minimum</li><li>WANT: React experience</li><li>WANT: Knowledge of architectural design data, especially BIM (Building Information Modeling)</li><li>NOTE: NO experience with BIM/CIM data handling or ACC (Autodesk Construction Cloud) app development required</li></ul>TRADE-OFFS<ul><li>No architectural/BIM knowledge needed - general coding skills with FE/BE knowledge is sufficient to perform the work effectively</li><li>Not looking for senior level - mid-level developers who can work independently based on instructions are perfectly suitable</li><li>Younger candidates welcome if they have solid fundamental skills</li><li>React experience is negotiable - can be learned on the job if candidate is strong in other required areas</li></ul>PRODUCT/PROJECT/TEAMProducts/Projects:<ul><li>Building digital data infrastructure for construction projects; developing web applications that utilize 3D models (both frontend and backend); creating digital data for buildings and infrastructure based on BIM/CIM data; providing this data to logistics and mapping teams for utilization across the organization</li></ul>Tech Stack/Tools:<ul><li>Java, C/C++, Go-Lang (need proficiency in at least one), React (preferred), BIM360/ACC (Autodesk), AWS, GitHub, G Suite, Slack, MS Office suite</li></ul>Team Structure:<ul><li>13 members total - 4 Japanese nationals, remainder are foreign nationals</li></ul>Work Style:<ul><li>Full onsite work at Nihonbashi office; daily communication primarily in Japanese, but technical meetings sometimes conducted in English; collaborative team environment; documents can be in English</li></ul>CHARACTER & CULTURETeam:<ul><li>Multicultural environment (13 members with diverse nationalities); values team collaboration over individual achievement; appreciates flexibility and positive attitude toward ad-hoc tasks; technical discussions sometimes in English, daily communication in Japanese; supportive atmosphere where younger members can grow</li></ul>Location TokyoSalary7 - 9 million yen Reference Number: 06940-0013308622By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi44NDc1My4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T01:10:45Z

Software Engineer / Platform Architect

Tokyo,
remote
Contract
9.0M - 14.0M JPY / Yearly
KEY REQUIREMENTS · Backend: Experience in development of frameworks or APIs · Compute/Data: Familiarity with compute and data intensive applications · Programming: Professional experience in C++, Java, C#, and/or Python · Data Processing: Extensive background in large-scale batch and/or stream processing · Platform/DevOps: Experience automating builds, deployments, testing, environment lifecycle, and/or monitoring · Scripting: PowerShell/bat or Bash scripting experience · Infrastructure: Infra/DevOps with AWS and Kubernetes · Databases: Deep experience with RDBMS and/or NoSQL databases PRODUCT/PROJECT/TEAM Products/Projects: Building large-scale batch and stream processing platforms for a smart city project Tech Stack/Tools: AWS, Kubernetes, C++, Java, C#, Python, PowerShell/Bash, RDBMS/NoSQL. Nice to have: GoLang, Rust, Erlang/Elixir, Game Engines (Unity), Multi-agent simulators Work Style: Hybrid, 2-3x a weekReference No.: 06940-0013194436By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi41NzU0NC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T02:33:59Z

Back End Engineer

Tokyo,
remote
Permanent
8.0M - 15.0M JPY / Yearly
Company Profile Innovative SaaS provider delivering a collaborative corporate management platform that centralizes budgeting, forecasting, headcount planning, and investment management for modern enterprises is seeking a Software Engineer to lead new product development.The Role<ul><li>Lead technical development for a brand-new business in the corporate management domain, working from 0→1.</li><li>Collaborate closely with Product Managers to validate customer needs and translate strategic vision into technical solutions.</li><li>Drive MVP design, architecture, implementation, and rapid iteration based on real customer feedback.</li><li>Own end-to-end product development: planning, design, implementation, and testing.</li><li>High-impact role with direct influence on product direction and business growth.</li></ul>Your Skills<ul><li>5+ years of web development experience.</li><li>Strong Ruby on Rails expertise.</li><li>Proven experience in architecture design and technical leadership.</li><li>0→1 product development experience is essential.</li><li>N2+ Japanese proficiency required.</li></ul>Key Highlights of the Role<ul><li>Join a mission-driven company unlocking corporate growth potential through technology (~140 employees).</li><li>Build a greenfield product with high ownership and autonomy.</li><li>Work in a product-focused team environment with experienced corporate planning consultants.</li><li>Enjoy full remote work with flextime (core hours 10:00-15:00).</li><li>Competitive salary: 8M-15M JPY with full social insurance and standard holidays.</li></ul>Location Tokyo Salary 8 - 15 million yen Reference Number: 06940-0013337722By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjIwMzI2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-11-20T02:58:42Z

Java Backend Engineer

Tokyo,
remote
Contract
8.5M - 8.5M JPY / Yearly
Client Profile Japanese multinational conglomerate company. (e-commerce, fintech, digital content, etc.)The Role<ul><li>Backend development for large-scale point systems</li><li>Design, code, review, test, and release web applications</li><li>Enhance and improve existing services and features</li><li>Introduce new architectures and refactor systems for scalability</li><li>Improve development environments (e.g., CI/CD, test automation)</li><li>Troubleshoot production issues and drive service reliability</li></ul>Your Skills Required Qualifications<ul><li>5+ years of Java development experience</li><li>Experience in designing and developing B2C services</li><li>Hands-on experience with relational databases (e.g., MySQL, Oracle, Clustrix)</li><li>Familiarity with Agile development methodologies</li><li>Experience using containers (e.g., Docker, Kubernetes)</li><li>English: Business level (TOEIC 800+ or equivalent)</li><li>Japanese: Not required</li></ul>Preferred Qualifications<ul><li>Experience designing high-traffic systems</li><li>Frontend development experience</li><li>CI/CD pipeline and test automation experience</li><li>Application deployment and operations experience (on-premises or public cloud)</li><li>Knowledge of NoSQL (e.g., Couchbase) or KVS</li><li>Experience collaborating with global teams</li><li>Familiarity with messaging systems (e.g., Kafka, RabbitMQ)</li></ul> LocationTokyo Hourly Salary 4,100 yen Reference Number: 06940-0013315544 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjgyNTkwLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-31T03:45:46Z

Software Engineer (Java)

Tokyo,
remote
Contract
5.0M - 10.0M JPY / Yearly
KEY REQUIREMENTS<ul><li>Japanese N3 level or above required</li><li>3+ years application development experience using COBOL or JAVA/JS</li><li>3+ years database application development experience (any type)</li><li>Flexible thinking without being fixated on specific business domains or technologies</li><li>Understanding of user-side operations and ability to cooperate actively</li><li>Can handle everything from requirements definition to coding and testing</li></ul>PRODUCT/PROJECT/TEAM<ul><li>Products/Projects: Digital transformation initiatives for paperless operations, labor-saving measures, and automation. System modifications across various business domains including underwriting, policy management, claims payment, agent management, and data infrastructure.</li><li>Tech Stack/Tools: Multiple environments - YPS/COBOL on Linux/OpenFrame, COBOL on IBM i (AS/400), Java/JavaScript with Spring Boot on Azure. Tools include Oracle, SQL Server, ETL, ESB, HULFT, JP1, ListWorks, FORM.</li><li>Team Structure: IT Service Delivery Departments 1-3, total organization size 50-60 people. Different departments handle different business domains (operations, agent management, open systems).</li><li>Work Style: Waterfall and Agile development methodologies. Hybrid work system with office/remote flexibility.</li></ul>CHARACTER & CULTURE<ul><li>Company: Customer-led and tech-enabled approach. Values include sharing corporate values, thinking outside the box, taking on challenges, and executing what they believe is right. Vision of changing the way people feel about insurance.</li><li>Team: Cooperative environment where team members actively promote initiatives together. Flexible career design possible with paths toward both management and specialist roles. Job Posting system allows internal applications across the company.</li></ul>Location TokyoSalary5 - 10 million yen Reference Number: 06940-0013293972By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4zNjYwNi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-09T06:19:33Z