7 results for Cybersecurity Engineer jobs

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

Quality Assurance Testing Manager

Tokyo,
remote
Contract
7.3M - 7.3M JPY / Yearly
Department Overview 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.Position Outline 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.Responsibilities<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>Reference No. 06940-0013286110 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/c2Fvcmkua29kYWthLjU2NTIyLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-12T06:57:22Z

Network Engineer

Tokyo,
remote
Permanent
12.0M - 12.0M JPY / Yearly
Location: Tokyo Job ID: 06940-0013314635 Annual Salary: JPY 12,000,000<h4 data-start="212" data-end="237">Team Overview:</h4><ul data-start="238" data-end="747"><li data-start="238" data-end="331">Responsible for supporting business operations by maintaining a stable IT infrastructure.</li><li data-start="332" data-end="424">Design and operation of cloud, network, authentication management, and related services.</li><li data-start="425" data-end="492">Focus on standardizing and automating infrastructure processes.</li><li data-start="493" data-end="747">Provide global support for IT infrastructure construction, while addressing regional characteristics and complexities. This role plays a critical part in enhancing global business operations by driving simplification, standardization, and automation.</li></ul><h4 data-start="749" data-end="774">Role Overview:</h4>(Immediately after hiring) Based on the strategy and standards defined by the Global Network Services Lead, this role is responsible for the implementation, operation, management, and continuous improvement of network services in the assigned region. Reporting directly to the Japan Infrastructure Lead, you will collaborate with the global team on daily network operations, coordinate with internal IT departments, external vendors, and oversee tasks such as network improvement, automation, and scalability.<h4 data-start="1292" data-end="1324">Key Responsibilities:</h4><ul data-start="1325" data-end="2289"><li data-start="1325" data-end="1482">Network Design & Implementation: Design, implement, and maintain regional network infrastructure (LAN/WAN/Wi-Fi/voice/SD-WAN/cloud connectivity).</li><li data-start="1483" data-end="1658">Infrastructure Health Management: Ensure the health, security, and performance of advanced network systems, including support for manufacturing sites (e.g., PLCs).</li><li data-start="1659" data-end="1797">Global Standards Deployment: Deploy global standards and best practices at the regional level to optimize network performance.</li><li data-start="1798" data-end="2009">SLA/KPI Management: Manage service level agreements (SLA) and key performance indicators (KPI), including optimization and regular maintenance of network devices (firewalls, switches, routers, etc.).</li><li data-start="2010" data-end="2152">Incident Management: Handle critical incidents, perform root cause analysis, and manage vendor relationships for issue resolution.</li><li data-start="2153" data-end="2289">Security & Compliance: Ensure compliance with IT security standards, access control practices, and other governance protocols.</li></ul><h4 data-start="2291" data-end="2317">Qualifications:</h4>Required:<ul data-start="2335" data-end="2887"><li data-start="2335" data-end="2447">Practical experience in network design, operation, and maintenance based on global standards and governance.</li><li data-start="2448" data-end="2564">Experience in the design, construction, and management of corporate networks (LAN/WAN/Wi-Fi/Voice/SD-WAN/Cloud).</li><li data-start="2565" data-end="2655">Solid understanding of IT security and compliance, with practical hands-on experience.</li><li data-start="2656" data-end="2792">Ability to collaborate and communicate effectively with global and regional IT teams, as well as internal and external stakeholders.</li><li data-start="2793" data-end="2887">Proficiency in English communication for technical discussions (reading, writing, speaking).</li></ul>Preferred:<ul data-start="2906" data-end="3156"><li data-start="2906" data-end="3012">Experience managing network infrastructure in manufacturing environments, including PLC-level systems.</li><li data-start="3013" data-end="3098">Experience in network automation and deployment/operation of large-scale systems.</li><li data-start="3099" data-end="3156">Relevant certifications (e.g., CCNP, CISSP) are a plus.</li></ul><h4 data-start="3158" data-end="3182">Competencies:</h4><ul data-start="3183" data-end="3482"><li data-start="3183" data-end="3283">Innovation Drive: Ability to identify new and better ways to enhance organizational success.</li><li data-start="3284" data-end="3386">Stakeholder Coordination: Ability to anticipate and balance the needs of diverse stakeholders.</li><li data-start="3387" data-end="3482">Flexibility: Capacity to adjust approach and attitude in response to changing situations.</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/bHVrZS5mdXJuaXZhbC42MDU2Ny4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-31T02:17:56Z

IT Security Consultant

Tokyo,
remote
Contract
1100 - 11.5M JPY / Yearly
Security Governance & Risk Management<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>Privacy & Data Protection<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>Technology Risk & Compliance<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>Reference No.：06940-0013293947By 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/YXJ5YS5wYW11bmdrYXMuODMxNzguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-24T03:34:13Z

Penetration Tester

Tokyo,
remote
Contract
750000 - 750000 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 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.Key Responsibilities<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> Monthly Salary750,000 yenLocationTokyo Reference Number: 06940-0013291287By 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/VG9tb2UuTW91bnRlZXIuMDQ1MjAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-18T02:25:52Z

IT Auditor

Tokyo,
remote
Contract
21.5M - 21.5M JPY / Yearly
Location: Tokyo Annual Salary: ¥21,451,040 JO: 06940-0013317947<h3 data-start="211" data-end="239">Job Responsibilities</h3><ul data-start="241" data-end="2398"><li data-start="241" data-end="333">Support the VP in regional regulatory requirements, internal and external audit queries.</li><li data-start="334" data-end="454">Provide day-to-day information security operational support for users and systems within the SecureZone environment.</li><li data-start="455" data-end="609">Support monitoring and investigation of security alerts, system events, and potential anomalies within SecureZone using MSSP and other security tools.</li><li data-start="610" data-end="721">Document operational procedures, incidents, and control implementations for audit and knowledge management.</li><li data-start="722" data-end="818">Support change management and incident response processes specific to SecureZone activities.</li><li data-start="819" data-end="913">Contribute to the continuous improvement of SecureZone security architecture and controls.</li><li data-start="914" data-end="1030">Perform research and provide information required to produce management reporting, both globally and regionally.</li><li data-start="1031" data-end="1163">Demonstrate strong knowledge and practical experience in Information Security Management frameworks such as ISO, NIST, CRI, etc.</li><li data-start="1164" data-end="1295">Possess hands-on experience managing regulatory inquiries and audits, including coordinating responses and remediation efforts.</li><li data-start="1296" data-end="1380">Maintain a strong understanding of risk management methodologies and frameworks.</li><li data-start="1381" data-end="1525">Support and maintain relationships with global information security teams, legal, communications, IT, risk, finance, control, and HR groups.</li><li data-start="1526" data-end="1716">Demonstrate solid collaboration skills along with the ability to effectively communicate security-related information including risk identification, assessment, and remediation activity.</li><li data-start="1717" data-end="1818">Show knowledge and practical experience with the following risk management frameworks: ISO, NIST.</li><li data-start="1819" data-end="2008">Liaise with internal security teams such as SOC, Vulnerability Management, Security Architecture, Threat Intelligence, and others to enhance the overall cybersecurity control framework.</li><li data-start="2009" data-end="2247">Contribute to the execution of security threat and risk assessments on key topics following established methodology; collaborate with the Security Architecture and Engineering Team regarding technical solutions and controls as needed.</li><li data-start="2248" data-end="2398">Demonstrate hands-on experience in business-aligned risk assessments on information systems, applications, third-party vendors, and cloud platforms.</li></ul>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/bHVrZS5mdXJuaXZhbC4wOTM2OS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-11-20T00:13:45Z

IT Consultant

Tokyo,
remote
Contract
9.0M - 9.1M JPY / Yearly
Security Governance<ul><li>Security Education: Support security awareness measures targeting risks associated with the use of generative AI, such as information leaks, unauthorized data entry, and model abuse. We create educational content, plan and implement employee training, assess understanding, and propose improvements.</li><li>NIS2 Directive Compliance: Evaluate governance, risk management, incident reporting systems, supply chain security, and more. Implement management measures, operational processes, and management responsibility systems based on NIS2 requirements.</li></ul>Engineering<ul><li>Device authentication: Utilizes device certificates, MDM integration, and hardware-based identification information (TPM, etc.) to help prevent access from unauthorized or unregistered devices.</li><li>Strengthening remote access security: Based on zero trust, supports the implementation of MFA, device authentication, network isolation, and access control policy optimization.</li><li>Strengthening security of AD domain and PC local administrator privileges: Minimizing privileged accounts, deleting unnecessary accounts, protecting authentication information, and centralizing local administrator password management using LAPS, etc. Support for reducing the risk of privilege abuse and authentication information leakage.</li></ul>Application<ul><li>Strengthening authentication methods: Review authentication methods and help reduce the risk of unauthorized logins and credential leaks.</li><li>Support for strengthening cloud security: Support for the implementation and operation of CSPM. Detecting configuration errors, visualizing compliance violations, vulnerability management, continuous monitoring, etc.</li><li>Support for standardizing password and secret management and implementing remote support solutions: Protecting privileged accounts and application secrets, implementing vault management, and supporting the establishment of regular rotation operations, etc. Support for the implementation of remote support solutions.</li></ul>SecOps<ul><li>Sentinel POC and Microsoft security infrastructure development: Strengthening access with Entra ID, integrating protection and detection with Defender, and supporting the implementation and operation of SIEM/SOAR with Sentinel.</li><li>AI-based security process automation: Leveraging AI technology to support the automation of operational processes such as security monitoring, incident response, threat analysis, and TPRM.</li><li>Evilginx implementation and operation support: Building, configuring, and operating the Evilginx environment, providing the environment necessary for verifying phishing attack methods, and providing technical support.</li></ul> Reference No.: 06940-0013322943By 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/bHVrZS5mdXJuaXZhbC42ODQzMC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-11-14T04:05:48Z