Senior Frontend Engineer React Native Fintech Innovator Jobs in Tokyo, Tōkyō

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Senior Software Engineer

Tokyo,
remote
Permanent
15.0M - 15.0M JPY / Yearly
Company ProfileA leading global financial services organization providing investment banking, securities, asset management, and financial technology solutions to institutional and corporate clients worldwide. The company leverages advanced technology platforms, cloud infrastructure, and data-driven innovation to support mission-critical financial services across global markets. The Role<ul><li>Design, develop, and maintain large-scale, high-performance software platforms and services.</li><li>Build cloud-native applications, APIs, and distributed systems supporting critical business operations.</li><li>Collaborate with global engineering, business, and operations teams to deliver scalable technology solutions.</li><li>Drive system modernization initiatives, including cloud migration and platform transformation.</li><li>Contribute to architecture decisions, performance optimization, and production reliability.</li><li>Mentor engineers and promote engineering best practices across the organization.</li></ul> Your Skills <ul><li>Strong software development experience in Java, Python, C++, or related technologies</li><li>Experience with cloud platforms, microservices, and distributed systems architecture</li><li>REST API development and database design experience</li><li>Knowledge of CI/CD, DevOps, system monitoring, and automation</li><li>Strong problem-solving and troubleshooting skills</li><li>Business-level communication skills in English</li></ul> Key Highlights of the Role <ul><li>Join a world-class engineering organization within the financial services industry.</li><li>Work on highly scalable platforms supporting global business operations.</li><li>Collaborate with international teams and cutting-edge technology environments.</li><li>Influence architecture, technical strategy, and next-generation platform development.</li><li>Gain exposure to cloud, distributed systems, and AI-enabled engineering practices.</li></ul> Location Tokyo Salary15 million yen Reference Number: 06940-0013501947 <img src="https://counter.adcourier.com/c3VlLnRpbmcuNzc3OTUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-10-02T04:50:06Z

Software Engineer

Tokyo,
remote
Contract
16.9M - 16.9M JPY / Yearly
Company ProfileA venture-backed AI technology company focused on developing verifiable and explainable AI solutions for scientific and engineering applications. The company combines advanced machine learning, formal reasoning, and domain expertise to accelerate innovation in complex technical fields, including engineering design, semiconductors, and scientific research. The Role<ul><li>Develop and maintain backend applications using Python/FastAPI and frontend applications using React/Next.js</li><li>Design APIs and databases, and optimize SQL performance</li><li>Contribute to system architecture and technical decision-making</li><li>Build scalable, secure, and reliable systems</li><li>Develop and enhance AI-powered features and agent workflows</li><li>Integrate and utilize LLM technologies and AI platforms</li><li>Perform unit, integration, and end-to-end testing</li><li>Participate in code reviews and quality improvement initiatives</li><li>Collaborate closely with Tech Leads and AI Engineers</li><li>Support cross-functional development teams and knowledge sharing</li></ul> Your Skills <ul><li>Cloud platforms and infrastructure</li><li>AI/LLM integration (OpenAI, Anthropic, Vertex AI, etc.)</li><li>Testing (Unit, Integration, E2E)</li><li>System design and scalable architecture</li><li>CI/CD and software engineering best practices</li><li>Troubleshooting and production support</li></ul> Key Highlights of the Role <ul><li>Work on next-generation AI products for science and engineering.</li><li>Build both full-stack applications and AI-powered features.</li><li>Influence system architecture and technical strategy.</li></ul> Salary8,125 JPY　〜 hourly Reference Number: 06940-0013502812 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.<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi45MjQ2Ni4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2026-10-02T03:30:41Z

Chief Technology Officer [Leading Cloud/AI Ops firm]

Tokyo,
remote
Permanent
30.0M - 40.0M JPY / Yearly
Company Profile<ul><li>Our client offers an industry-leading platform across AI, cloud infrastructure and software delivery for Fortune 500 companies and the fastest-growing AI-native businesses in the world.</li><li>The company sits at the intersection of two of the most durable enterprise technology tailwinds of this decade: the shift to cloud-native, AI-driven architectures. In light of this they are now building out senior, strategic capabilities in Japan to match the ambitions of their APAC growth and enterprise customers in the region.</li></ul>The Role<ul><li>As the CTO for Japan, you will be the company's most senior technical voice in the region - a trusted advisor to CIOs, CTOs, CISOs, and CEOs at the country's largest enterprises as they navigate digital transformation, AI adoption, and the operational complexity that comes with it. This is not a delivery or pre-sales role in the traditional sense; it is a strategic, executive-facing mandate to shape how Japan's most influential technology leaders think about visibility, resilience, and value realization at scale.</li></ul>You will:<ul><li>Advise C-level executives on rationalizing technology investment, adoption strategy, and ROI as they modernize their architectures for the AI era</li><li>Identify and shape industry-specific trends across Japan, feeding insights directly into global product, GTM, and architecture strategy</li><li>Represent the company's thought leadership on observability, security, and AI-era infrastructure at executive briefings, industry events, and with the region's most strategic accounts</li><li>Partner closely with sales leadership, solutions architecture, and marketing to build long-term strategic relationships - not transactional ones</li><li>Help build out the technical leadership bench in Japan as the region scales</li></ul>Your Skills<ul><li>15+ years of experience in enterprise or application architecture at scale, with deep fluency in cloud infrastructure, observability, and the broader technology shifts shaping Japanese enterprises today</li><li>A track record of advising and influencing VP- and C-level stakeholders inside large, complex organizations</li><li>A hands-on technologist who can move fluidly between deep technical detail and executive-level business narrative</li><li>Strong strategic and creative thinking across both technical and commercial challenges</li><li>Outstanding presentation skills in front of large audiences, from engineering practitioners to non-technical executives</li><li>Native-level Japanese with strong business English, spoken and written</li></ul>Key Highlights of the Role<ul><li>This is a newly created high-visibility role, working with global engineering teams, GTM and C-suite customers</li><li>AI adoption and cloud-native modernization are both accelerating simultaneously, and this role sits at the exact intersection where enterprise budgets are moving</li><li>Generous compensation, inclusive of RSU grant and employee stock purchase plan at a company with strong, consistent growth</li></ul> Reference Number: 06940-0013494404 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.<img src="https://counter.adcourier.com/b3NrYXIudGFrZW5ha2EuOTUxNDcuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-08-25T08:48:46Z

Full Stack Engineer

Tokyo,
remote
Permanent
9.0M - 12.0M JPY / Yearly
Company Profile<ul><li>Global professional services firm is looking for a Software Engineer to build and maintain software solutions supporting the business side.</li></ul> The Role<ul><li>Design, develop, test, and maintain scalable, secure software applications aligned with business goals and user needs.</li><li>Work with product, design, and QA teams, and join code reviews and architecture and technical design discussions.</li><li>Build CI/CD pipelines, automate deployments, and monitor and troubleshoot production systems.</li><li>Maintain documentation for the codebase, APIs, and processes, and support internal and external audits and compliance.</li></ul> Your Skills<ul><li>5+ years of web app development with Django and ReactJS (mandatory).</li><li>Proficiency in Python, JavaScript, TypeScript, and PostgreSQL.</li><li>Hands-on Git and Docker, plus cloud experience (Microsoft Azure preferred).</li><li>Able to handle both development and maintenance work.</li><li>Passion for using AI to drive innovation and streamline processes.</li><li>Japanese: JLPT N2, English: business level</li><li>Nice to have: CI/CD (GitHub Actions, Azure DevOps), testing frameworks (PyTest, Jest, Cypress), system design, Agile/Scrum, REST/GraphQL, security best practices, monitoring (Prometheus, Azure Monitor), mentoring or leading small projects.</li></ul> Key Highlights of the Role<ul><li>Work on software for a leading global professional service company</li><li>Closely work with AI and build LLM products from day 1</li><li>Take part in architectural decisions, with room to mentor juniors and lead small projects.</li><li>Possible to work remotely with very rare office days</li></ul> Location Tokyo Salary9 - 12 million yen Reference Number: 06940-0013521216 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.<img src="https://counter.adcourier.com/TmFuY3kuWXVhbi45NTkwOS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2026-10-07T06:46:39Z

Software Engineer (BI Developer)

Tokyo,
remote
Contract
12.0M - 12.0M JPY / Yearly
The Role<ul><li>This role focuses on building a finance and budgeting solution using Excel-based tools, data integration, dashboards, and automation.Main responsibilities include:<ul><li>Developing a single-source budget planning workbook with input templates, master data integration, ID management, validation rules, management views, and export functions for finance submissions</li><li>Creating a structure that connects budget and actual data through a common key, including data import, transformation, quality checks, and integration across shared files and platforms</li><li>Designing and building financial dashboards in a BI tool for reporting such as budget vs actual, forecast tracking, year-over-year comparison, and analysis by function, region, service, vendor, and charge type</li><li>Implementing automation for business processes, including workflow automation, scripting, spreadsheet automation, data refresh, and recurring report updates</li></ul>Required skills include:<ul><li>Strong experience with BI development, data modeling, calculations, dashboard design, and BI services</li><li>Advanced spreadsheet skills, query tools, scripting or VBA, and workflow automation</li><li>SQL, ETL/data transformation, file-based data integration, and data quality management</li><li>System development experience including design documentation, testing, requirements-based development, and error analysis/remediation</li></ul></li></ul>Location Tokyo Salary12 million yen Reference Number: 67040-0013491969 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. <img src="https://counter.adcourier.com/YWhtYWQucm95YW5pLjkxNTMyLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2026-09-04T06:21:39Z

Engineering Manager

Tokyo,
remote
Permanent
15.0M - 15.0M JPY / Yearly
Company Profile<div>A fast-growing global technology company is seeking an Engineering Manager to lead a Core Services team responsible for building and operating the foundational platform capabilities that power mission-critical products used by enterprise customers worldwide.</div> The Role<ul><li>Lead and mentor a team of software engineers.</li><li>Drive high-quality delivery of platform and engineering initiatives.</li><li>Establish effective processes, planning, and team accountability.</li><li>Support architecture discussions and key technical decisions.</li><li>Balance scalability, reliability, and long-term maintainability.</li><li>Partner with cross-functional stakeholders to execute business priorities.</li><li>Foster a collaborative and high-performing engineering culture.</li><li>Act as an escalation point for critical incidents and operational issues.</li><li>Continuously improve engineering standards and team performance.</li></ul> Your Skills <ul><li>Native-level Japanese and business-level English.</li><li>8+ years of software engineering experience.</li><li>3+ years of engineering leadership experience.</li><li>Strong architectural and technical decision-making skills.</li><li>Solid knowledge of backend systems, APIs, and distributed platforms.</li><li>Proven experience developing high-performing teams.</li><li>Ability to drive impactful delivery and business outcomes.</li><li>Experience collaborating with distributed teams and stakeholders.</li><li>Strong communication and execution capabilities.</li></ul> Key Highlights of the Role <ul><li>Take ownership of a mission-critical platform that supports globally utilized products and services.</li><li>Lead a talented engineering team and play a key role in its growth and development.</li><li>Influence architectural decisions and contribute to long-term technology strategy.</li><li>Work in a highly collaborative, international environment with strong leadership exposure.</li></ul> Location Tokyo Salary15 million yen - Reference Number: 06940-0013501948 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.<img src="https://counter.adcourier.com/c3VlLnRpbmcuNzYyMzUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-10-01T07:20:38Z

IT Consultant

Tokyo,
remote
Permanent
10.0M - 10.0M JPY / Yearly
<div><h1>Company Profile</h1>A global business and technology consulting firm that helps organizations drive digital transformation, technology modernization, cloud adoption, data-driven decision-making, and AI-enabled innovation. The company partners with clients across multiple industries to deliver strategic initiatives, large-scale technology programs, and sustainable business outcomes.<h1>The Role</h1><ul><li>Support clients in developing and executing technology transformation strategies.</li><li>Lead or contribute to complex IT and digital transformation projects from planning through implementation.</li><li>Collaborate with business stakeholders, technical teams, and project leadership to deliver measurable business value.</li><li>Assess current technology landscapes and recommend innovative solutions to improve operational effectiveness and customer outcomes.</li><li>Facilitate communications between business and technical teams to ensure successful project delivery.</li></ul><h1>Your Skills</h1><ul><li>Experience in IT consulting, technology strategy, digital transformation, or project management.</li><li>Ability to engage with executive stakeholders and cross-functional teams.</li><li>Strong analytical, problem-solving, and communication skills.</li><li>Understanding of enterprise technologies, cloud platforms, data, AI, or modern application architectures.</li><li>Experience delivering large-scale business or technology projects.</li></ul><h1>Key Highlights of the Role</h1><ul><li>Opportunity to work on high-profile digital transformation initiatives.</li><li>Exposure to emerging technologies including AI, cloud, data platforms, and modern enterprise solutions.</li><li>Collaboration with diverse clients across multiple industries.</li><li>Strong career development opportunities within a growing global consulting environment.</li><li>Highly collaborative and people-focused culture.</li></ul><h1>Location</h1>Tokyo<h1>Salary</h1>JPY 10,000,000Reference Number: 06940-0013496992 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.</div> <img src="https://counter.adcourier.com/TWlraXRvLk5haXRvLjExMjA4LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2026-09-11T05:57:11Z

7 results for Senior Frontend Engineer React Native Fintech Innovator in Tokyo, Tōkyō