<p>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.<br /><br /><strong>Key Responsibilities</strong></p><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><p><br /><strong>Qualifications</strong></p><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><p><br /><strong>What's Offered</strong></p><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><p><br /><strong>Unique Highlights</strong><br />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.</p><p><strong>Salary</strong> </p><p>8M - 12M JPY</p><p><strong>Location </strong></p><p>Tokyo</p><p> </p><p>Reference Number: 06940-0013289584</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4zMDkxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p>Join a team architecting petabyte-scale data systems that process billions of security events daily.<br />We're building next-generation cybersecurity infrastructure using cutting-edge distributed systems technology.<br /><br /><br />WHY THIS OPPORTUNITY MATTERS<br />-Work on massive-scale systems protecting millions of endpoints globally<br />-Fully remote position with flexible work arrangements across Japan<br />-Use modern tech stack: Apache Flink, Kafka, ClickHouse, Rust, Go<br />-Direct technical impact on global cybersecurity defense<br />-Join during major product transformation with significant backing<br /><br />WHAT YOU'LL BUILD<br />-Distributed data infrastructure handling billions of events with sub-second latency<br />-Real-time streaming pipelines using Apache Flink and Kafka for threat detection<br />-Time-series databases and data lakes optimized for security analytics<br />-Cloud-native microservices ensuring 99.99% availability<br />-Performance optimization across petabyte-scale workloads<br /><br />REQUIREMENTS<br />Must Have:<br />-7+ years large-scale data infrastructure experience<br />-Apache Flink and Kafka expertise (or similar streaming platforms)<br />-Analytical databases: ClickHouse, Druid, InfluxDB, or TimescaleDB<br />-Programming: Rust, Go, Scala, Java, or Python<br />-Cloud platforms: AWS, GCP, or Azure data services<br />-Kubernetes and Docker at scale<br />-Japan work authorization or current residency<br /><br />Nice to Have:<br />-Apache Iceberg, Delta Lake experience<br />-Airflow or Prefect orchestration<br />-Cybersecurity or SIEM background</p><p> </p><p>Reference Number:06940-0013276426</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S2hhbmcuTGUuNjUyNDcuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Department Overview</strong><br />The Cyber Security Defense Department (CSDD) serves as the headquarters' proactive unit dedicated to cyber defense, overseeing a broad range of protective measures. These include areas such as security solution engineering, Secure Development Lifecycle (SDL) management, vulnerability assessments, penetration testing, security architecture design, threat intelligence analysis, and incident response. Within CSDD, the Cyber Defender Empowerment Section specializes in security solution engineering, covering all stages of the lifecycle-planning, design, development, deployment, and maintenance-to deliver innovative security solutions.</p><p><strong>Position Outline</strong><br />We are looking for an experienced professional with a strong background in QA engineering to act as a key technical contributor for our in-house developed, innovative, and standardized cybersecurity products/solutions. This position involves overseeing the standardization of the testing process, including planning, designing, and executing tests, while collaborating with development teams to enhance service quality. You will also be tasked with building and advocating for environments that support test automation and continuous testing. We seek a senior QA engineer with technical expertise, experience, and passion for ensuring the reliability and scalability of our in-house cybersecurity products/solutions. Ideally, the candidate should also have experience using AI-driven testing tools and incorporating generative AI to refine testing methodologies.</p><p><strong>Responsibilities</strong></p><ul><li>Design and manage the infrastructure for test automation.</li><li>Develop and maintain continuous testing environments.</li><li>Create test automation scripts for UI, API, and web applications.</li><li>Develop performance test scripts, execute performance tests, and analyze results.</li><li>Conduct test code reviews.</li><li>Verify and analyze test results.</li><li>Research and implement automation strategies to enhance testing productivity.</li><li>Explore and apply AI-driven testing methodologies, including automated test case generation, intelligent test execution, and anomaly detection.</li></ul><p><strong>Reference No.</strong> 06940-0013286110</p><p> </p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjU2NTIyLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p>Automotive company is looking for Program Manager (SOC).</p><p> </p><ul><li>Support of project management for the wider security operations teams initiatives, including support for agile ceremonies. This includes tracking status, metrics, delivery, and reporting of backlog, sprints, epics, and tasks.</li><li>The tracking and facilitation of security operations documentation, policy, and process reviews.</li><li>Assistance in designing and executing security operation tabletop exercises and operational readiness drills. Also documenting and tracking remediation of discoveries.</li><li>Supporting development, refinement, and implementation of internal security operations policies, procedures, processes, and escalation protocols.</li><li>Overseeing security operations business review, executive and external report, KPI and metric establishment, generation, and presentation.</li><li>Responsibility for procurement efforts, vendor relationship management, and escalation for security operations tooling and purchased services.</li><li>Facilitation of assessment and reporting on security operations maturity assessments e.g. Security Operations Center (SOC) Capability Maturity Model (CMM), National Institute of Standards and Technology (NIST) CyberSecurity Framework (CSF) 2.0.</li><li>Facilitating security operations and incident response retros and lessons learned sessions, capturing and documenting findings, and ensuring these are escalated to the appropriate teams or backlogs.</li><li>Maintenance of a security operations skills matrix, skill gap analysis, management of on-demand training plans, and reviewing of training reviews and requirements.</li><li>Management of end-to-end of the Request for Comment (RFC) process, ensuring smooth review and implementation of proposed ideas.</li><li>Overseeing the application and communication with wider security operations trust groups and management.</li><li>Monitoring of time allocation for engineering items to Individual Service Agreement (ISA)'s, overseeing delivery of ISA's, and aiding in preparation and submission of ISA's.</li><li>Facilitating the planning of security operations financial year planning and budgeting.</li><li>Tracking service and contract renewal for budget line items, notifying stakeholders of renewal, and assisting F&A with the renewal process.</li><li>Aiding with the onboarding, upskilling of security engineers, and managing access and permissions.<br /> </li></ul><p>Monthly salary: 958,400 JPY</p><p>Reference No: 06940-0013270624</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/V2lsbC5GaXRjaC45MzQ3MS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p>Selling Point:</p><ul><li>Work from Home option</li></ul><p>Summary:</p><ul><li>Join the local security team and take part in a wide variety of information security and cybersecurity initiatives, working closely with internal and external stakeholders under the guidance of the Regional Information Security Officer.</li></ul><p>Responsibilities:</p><ul><li>Create and oversee security resources, initiatives, and frameworks.</li><li>Offer consultancy services and expert advice in security matters.</li><li>Perform risk assessments related to security and devise enhancement strategies.</li><li>Architect and deploy secure systems and configurations.</li><li>Carry out routine security operations, including log analysis, intelligence collection, and evaluation.</li><li>Manage and take the lead on security-related projects.</li><li>Design and deliver security training and exercises for staff across all organizational levels.</li><li>Adapt and sustain group security resources, initiatives, and frameworks to meet local needs.</li><li>Work closely with global teams at the headquarters and in other regions.</li></ul><p>Qualifications:</p><ul><li>Proficiency in Japanese written and verbal communication at a business level or higher.</li><li>Strong English written communication skills.</li></ul><p>Preferred Qualifications:</p><ul><li>Ability to communicate effectively in English verbally.</li><li>Practical experience with Splunk and/or Palo Alto Firewall.</li></ul><p>Place to work：Tokyo</p><p>Reference No.: 06940-0013267902</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/YWhtYWQucm95YW5pLjQzMDEzLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>Security Governance & Risk Management</strong></p><ul><li>Perform security risk evaluations and devise mitigation plans.</li><li>Develop and enforce security policies, standards, and practices.</li><li>Assist in the creation of cybersecurity strategies and governance frameworks.</li><li>Partner with executive stakeholders to convey risk standing and program progress.</li></ul><p><strong>Privacy & Data Protection</strong></p><ul><li>Carry out assessments of privacy programs and identify gaps to address.</li><li>Provide assistance in the creation and execution of privacy frameworks (e.g., GDPR, APPI).</li><li>Support Privacy-as-a-Service (PRaaS) projects and conduct third-party risk examinations.</li><li>Ensure adherence to both international and regional data protection laws and regulations.</li></ul><p><strong>Technology Risk & Compliance</strong></p><ul><li>Deploy IT risk management frameworks aligned with organizational goals.</li><li>Evaluate IT controls and assist in audit preparation.</li><li>Support IT governance processes and contribute to compliance with regulatory standards.</li></ul><p>Reference No.：06940-0013293947</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/YXJ5YS5wYW11bmdrYXMuODMxNzguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Client Profile </strong></p><p>Our client is mobility technology company focused on building software platforms and infrastructure for future transportation systems.</p><p><strong>Overview<br /></strong><br />We are seeking a skilled Penetration Tester to evaluate and enhance the security of digital products. The role involves conducting penetration tests, identifying vulnerabilities, and collaborating with cross-functional teams to ensure robust and secure systems.</p><p><strong>Key Responsibilities</strong></p><ul><li>Triage: Review product changes and assess if a penetration test is necessary</li><li>Scoping: Identify components for testing, define test types, and estimate required effort</li><li>Threat Modeling: Conduct informal threat models to identify critical testing areas and potential attacks</li><li>Testing: Perform time-boxed penetration tests, including setup, teardown, reporting, and familiarization with technologies</li><li>Reporting: Write clear, concise vulnerability reports, including severity assessment, reproduction steps, and justification</li><li>Retesting: Confirm the effectiveness of remediations for previously reported vulnerabilities</li><li>Process Improvement: Suggest and implement improvements to testing processes, documentation, templates, and tools</li><li>Peer Review: Review and provide feedback on reports prepared by other testers</li><li>Cross-Functional Collaboration: Work with designers, product managers, and engineers to understand products and deliver quality testing</li></ul><p><strong> Monthly Salary</strong></p><p>750,000 yen</p><p><strong>Location</strong></p><p>Tokyo</p><p> </p><p>Reference Number: 06940-0013291287</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuMDQ1MjAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>The Role</strong></p><ul><li>Understand the organization's cloud security needs.</li><li>Develop and implement security architecture and policies for cloud environments.</li><li>Collaborate with teams to integrate security.</li><li>Address cloud security risks and design secure solutions for applications and integrations.</li><li>Improve cloud security programs and frameworks.</li></ul><p><strong>Your Skills </strong></p><ul><li>Solid experience of the similar responsibilities listed above</li><li>Strong expertise in cloud security architecture, frameworks, and technologies</li><li>Deep knowledge of cloud models and implementation of security policies</li><li>Experience collaborating across functional teams</li><li>Leadership skills and experience</li><li>Business or more advanced level of both English and Japanese language skills</li></ul><p> </p><p>Reference Number: 06940-0013221264</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/U3RldmVuLkxpLjY2MjEzLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
