<p><strong>Company Profile</strong></p><p>Global cybersecurity leader specializing in Endpoint Detection & Response (EDR) solutions is expanding its Tokyo engineering team. The company protects enterprise customers worldwide by analyzing massive volumes of threat data from millions of endpoints in real-time.</p><p><strong> </strong></p><p><strong>The Role</strong></p><ul><li>Join the core engineering team building a completely next-generation EDR platform that has secured board-level funding and is moving into production phase</li><li>Design and implement backend services in Rust that process data from 6 million sensors streaming 1,000 messages per minute with sub-second response times</li><li>Build data ingestion pipelines and microservices that maintain reliability under extreme throughput while optimizing cloud infrastructure costs</li><li>Architect scalable distributed systems using containerization, cloud-native technologies and streaming data platforms</li><li>Develop APIs and integrations connecting security tools across enterprise IT environments</li><li>Collaborate with an international engineering team (English-speaking) to implement AI-driven threat detection capabilities</li><li>Work on genuinely complex technical challenges where system reliability isn't optional. It's mission-critical!</li></ul><p><strong> </strong></p><p><strong>Your Skills </strong></p><p>Essential Requirements:</p><ul><li>Production experience in Rust required (or exceptionally strong C++/Go/Java with immediate willingness to transition to Rust)</li><li>Proven track record building high-scale distributed systems handling millions of users or data points, not just thousands</li><li>Deep understanding of system reliability trade-offs: performance versus cost, speed versus fault tolerance</li><li>Hands-on experience with cloud platforms (AWS/GCP/Azure), containerization, and microservice architecture patterns</li><li>Solid foundation working with both SQL and NoSQL databases; streaming data systems experience is a bonus</li><li>Currently based in Japan or hold valid work authorization to work in Tokyo</li><li>English language proficiency for international team collaboration</li></ul><p>Welcome Experience:</p><ul><li>Background in cybersecurity, SIEM systems, or observability platforms</li><li>Experience with Kafka, Flink, Redpanda, or other data streaming technologies</li><li>Familiarity with ELK stack, time-series databases, or real-time analytics frameworks</li><li>Previous work optimizing cloud infrastructure costs at scale</li></ul><p><strong> </strong></p><p><strong>Key Highlights of the Role </strong></p><ul><li>Join at the perfect timing as team has grown to 15+ engineers and is establishing technical leadership layers, creating fast-track paths to Team Lead positions</li><li>Work on greenfield architecture where your technical decisions will shape the product for years to come</li><li>Solve genuinely hard problems: maintain performance while processing petabyte-scale threat data across distributed global infrastructure</li><li>Join a truly international team where English is the primary language and remote collaboration is built into the workflow</li><li>Modern tech stack from day one-no legacy monoliths, just cloud-native microservices and streaming pipelines</li><li>Competitive compensation package reflecting the urgency and strategic importance of these hires (budget available up to ¥15M for exceptional candidates)</li><li>Located in Otemachi, Tokyo with convenient access to multiple train and subway lines</li></ul><p> </p><p><strong>Apply Confidentially</strong></p><p>Send your resume with "Rust Engineer - Cybereason" in the subject line. All applications and conversations will be handled with complete discretion. Even if you don't meet every requirement but have strong systems-thinking and Rust capabilities, we encourage you to apply.</p><p> </p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>9 - 15 million yen</p><p><strong> </strong></p><p>Reference Number: 06940-0013358136</p><p> </p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/S2hhbmcuTGUuNjk4MzQuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Responsibilities</strong><br /> Leverage your technical expertise to architect, develop, and deliver scalable, secure cybersecurity solutions and drive improvements on enterprise-level platforms for The Group.</p><p><strong>Required Skills</strong></p><ul><li>Bachelor's degree in Computer Science, Engineering, or a related discipline</li><li>At least 5 years of professional software engineering experience in medium-to-large enterprise settings</li><li>Demonstrated expertise in .NET Core/.NET application development using C#</li><li>Strong ASP.NET Core proficiency</li><li>Thorough understanding of object-oriented programming, design patterns, and clean architectural principles</li><li>End-to-end SDLC experience: requirements analysis, solution design, building, testing, delivery, and maintenance</li><li>Full-stack development capabilities:<ul><li>Frontend: TypeScript, React, Next.js</li><li>Backend API development<ul><li>Advanced Python for backend services, automation, tooling</li><li>Extensive cloud infrastructure knowledge: Azure (preferred), AWS, and/or GCP</li><li>Design of secure cloud architectures across development and production (identity, networking, access control)</li><li>Familiarity with unit test frameworks such as xUnit, NUnit, MSTest</li><li>Experience with web services and APIs (RESTful, SOAP)</li><li>Working with relational (Azure SQL/MS SQL) and NoSQL (e.g., Cosmos DB) databases</li><li>Proficient in SQL and using ORM tools (Entity Framework Core, Dapper)</li><li>Ability for deep analysis, troubleshooting, performance optimization, and debugging in .NET (C#) and JavaScript/TypeScript</li><li>Strong skills in technical documentation and ability to communicate complex technical matters clearly</li><li>Self-motivated, possesses a sense of ownership, and collaborates effectively</li><li>Skilled in multi-tasking, prioritizing, adapting to change, and meeting deadlines</li><li>Deep interest in cybersecurity and commitment to ongoing learning</li></ul></li></ul></li></ul><p>Reference no.: 06940-0013365576</p><img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjQ1MzU3LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>Company Profile</strong></p><p>A Japanese subsidiary of the global cybersecurity firm. it operates independently in Japan.</p><p><strong> </strong></p><p><strong>The Role</strong></p><ul><li>Design, develop, and maintain high-quality software solutions.</li><li>Collaborate with cross-functional teams to define requirements and deliver scalable applications.</li></ul><p><strong> </strong></p><p><strong>Your Skills </strong></p><ul><li>Proficiency in programming languages such as Java, Python, or C++.</li><li>Experience with cloud platforms and distributed systems.</li><li>Excellent problem-solving skills and attention to detail.</li></ul><p><strong> </strong></p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>9.5 million yen</p><p><strong> </strong></p><p>Reference Number: 06940-0013356214</p><p> </p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS44ODc1Ny4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Company Profile</strong></p><p>A globally operating cybersecurity service company, specializing in incident response and enterprise security support.</p><p><strong> </strong></p><p><strong>The Role</strong></p><p>As the Country Manager leading business launch and growth in Japan, you will be broadly responsible for everything from market strategy planning to sales execution and organizational development.</p><p>Key Responsibilities:</p><ul><li>Build the business foundation and Go-to-Market strategy for the Japanese market</li><li>Establish and maintain relationships with executive stakeholders of enterprise clients</li><li>Develop and execute sales strategies to achieve quarterly and annual revenue targets</li><li>Manage complex enterprise sales processes</li><li>Drive sales and account strategies in collaboration with internal teams</li><li>Address customer challenges and concerns, and support deal closing</li></ul><p><strong> </strong></p><p><strong>Your Skills </strong></p><ul><li>Knowledge of cybersecurity, particularly incident response</li><li>Over 5 years of leadership experience in the cybersecurity field</li><li>Experience as a security consultant, sales engineer, or in a corporate security role</li><li>Ability to build relationships and make proposals at the executive level</li><li>Experience developing sales strategies in new or growth markets</li></ul><p><strong> </strong></p><p><strong>Key Highlights of the Role </strong></p><ul><li>A key position responsible for launching the Japan market</li><li>A role with significant autonomy and high strategic impact</li><li>Close collaboration with global teams</li><li>Opportunity to influence the cybersecurity market in Japan</li></ul><p><strong> </strong></p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>30 - 35 million yen</p><p><strong> </strong></p><p>Reference Number: 06940-0013365609</p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/TGFuLk5ndXllbi4wMDIyNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Company Profile</strong></p><p>A technology‑driven mobility company is seeking a Security Engineer to strengthen enterprise security across identity systems, endpoints, networks, and cloud environments.</p><p><strong> </strong></p><p><strong>The Role</strong></p><ul><li>Protect identities across Entra ID, Entra Domain Services, and Google Workspace</li><li>Participate in architecture discussions to address risk, compliance, and security concerns</li></ul><p><strong> </strong></p><p><strong>Your Skills </strong></p><ul><li>Hands-on experience in identity, endpoint, and corporate IT security in hybrid on‑prem/cloud environments</li><li>Strong knowledge of cloud platforms (AWS, GCP, Azure) and Kubernetes</li></ul><p><strong> </strong></p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>3,700 yen hourly</p><p><strong> </strong></p><p>Reference Number: 06940-0013363678</p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><p><br /> </p><img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuMDYwMjMuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Company Profile </strong><br />Global consulting firm delivering cybersecurity, technology risk, and compliance solutions across diverse industries is seeking Security & Privacy GRC Consultants to support growing client demand in Japan and across the APAC region.<br /><br /><strong>The Role </strong></p><ul><li>Join our Cybersecurity and Technology Risk & Resilience team to deliver security governance, privacy compliance, and IT risk management solutions for enterprise clients.</li><li>Support security risk assessments, develop mitigation strategies, and implement security policies, standards, and procedures aligned with industry frameworks.</li><li>Perform privacy program assessments, gap analyses, and assist clients with GDPR, APPI, and other data protection regulations.</li><li>Conduct IT control assessments, support audit readiness, and contribute to IT governance and regulatory compliance initiatives.</li><li>Collaborate with executive stakeholders to communicate risk posture, program maturity, and strategic recommendations.</li><li>For bilingual positions: Support Japanese clients and serve as a bridge between Japanese and global stakeholders.</li></ul><p><strong>Your Skills </strong></p><ul><li>5-6 years of experience in Security & Privacy GRC roles.</li><li>Strong knowledge of cybersecurity frameworks (e.g., NIST CSF, ISO 27001).</li><li>Familiarity with privacy regulations (e.g., GDPR, CCPA, APPI).</li><li>Experience with IT risk management and compliance programs.</li><li>Excellent communication and stakeholder engagement skills.</li><li>For bilingual role: Fluent Japanese and business-level English (spoken and written) are mandatory.</li><li>Preferred: Certifications such as CISA, CIPM, CISSP, or ISO 27001 Lead Implementer.</li><li>Preferred: Experience in consulting or client-facing roles; exposure to SAP GRC or enterprise GRC platforms.</li></ul><p><strong>Key Highlights of the Role </strong></p><ul><li>Work on high-impact cybersecurity and privacy transformation projects for leading enterprises.</li><li>Gain exposure to diverse industries and complex regulatory environments across APAC.</li><li>Collaborate with global teams and senior leadership on strategic risk and compliance initiatives.</li><li>Multiple openings: 1 bilingual position and 3-4 English monolingual positions available.</li></ul><p>Join a growing practice with opportunities for professional development and certifications.</p><p><strong>Location </strong></p><p>Tokyo</p><p><strong>Salary</strong></p><p>10 - 12 million yen</p><p> </p><p>Reference Number: 06940-0013344718</p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/c2h3ZXRhLmxla2hyYWphbmkuMDM2MDAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p>Technical Validation Team Lead<br />Colt Technology Services | Tokyo, Japan<br />Full-Time | Permanent</p><p><br />Company Profile | 企業概要<br /><br />Colt Technology Services is a global provider of high-bandwidth connectivity, network, and voice solutions, delivering secure and scalable infrastructure to enterprises, carriers, and financial institutions across Europe, Asia, and North America. With a reputation for engineering excellence and a customer-first culture, Colt continues to expand its Asia-Pacific footprint - making this an exceptional time to join and shape the future of network delivery in Japan.<br /><br />The Role | 職務内容<br /><br />* Lead a team of Technical Validation Engineers across all technology domains, overseeing day-to-day delivery of technical validation and feasibility checks for Customer Orders and Internal Network Optimisation Orders.<br />* Manage workload prioritization and support the professional development of each team member, ensuring consistent output quality and on-time delivery in line with SLAs.<br />* Proactively monitor resource capacity, resolve stakeholder conflicts, and manage escalations - providing clear direction to help the team navigate complex technical challenges.<br />* Drive Continuous Service Improvement (CSI) initiatives to evolve validation practices, raise team KPIs, and enhance overall service quality.<br />* Report on validation performance metrics and maintain high-quality documentation in both Japanese and English.<br /><br />Your Skills | 応募資格<br /><br />* Minimum 10 years of experience in network design or provisioning, with deep knowledge of Optical/Ethernet/SDH/SONET, DWDM, and EoSDH/IP technologies.<br />* At least 5 years of hands-on team leadership experience in a technical environment.<br />* Japanese (native level) and English (business level or above)Strong written and verbal communication skills in both<br />* Proven ability to produce high-quality business documentation and present technical concepts to non-technical stakeholders.<br />* Proficiency in Microsoft Office tools including Visio, Word, PowerPoint, and Excel.<br />* CCNP or CCIE certification is a plus.<br />* Bachelor's or Master's degree in Electrical Engineering, Network Engineering, or a related discipline.<br /><br />Key Highlights of the Role | おすすめのポイント<br /><br />* Step into a senior leadership role with real influence over team performance, validation standards, and service quality.<br />* Work at a global technology leader that values engineering depth - this is a role for a true network professional, not just a manager.<br />* Join a collaborative, international team environment with strong support for career development and technical growth.<br />* Contribute to meaningful Continuous Improvement initiatives that will shape how technical validation is done across the organization.<br /><br /></p><p><strong>Location </strong></p><p>Tokyo</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>8 - 12 million yen</p><p><strong> </strong></p><p>Reference Number: 67040-0013385198</p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><p> </p><img src="https://counter.adcourier.com/SGluc29uLkxldW5nLjgxOTIxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>Company Profile</strong></p><p>A Japanese subsidiary of an American outdoor apparel and equipment company. The Japan office manages product imports, retail store operations, e-commerce, and wholesale distribution nationwide.</p><p><strong> </strong></p><p><strong>The Role</strong></p><ul><li>Network Design & Implementation</li><li>Operations & Maintenance</li><li>Cloud & Infrastructure Integration</li><li>Security & Compliance</li><li>Documentation & Collaboration</li></ul><p><strong> </strong></p><p><strong>Your Skills </strong></p><ul><li>Strong knowledge of TCP/IP, routing (BGP, OSPF), switching (VLAN, STP), and network protocols.</li><li>Hands-on experience with enterprise‑grade networking equipment (Cisco, Juniper, Aruba, Fortinet, etc.).</li><li>Experience configuring firewalls, VPNs, and network security tools.</li><li>Strong problem‑solving ability and attention to detail.</li><li>Effective communication skills with both technical and non-technical stakeholders.</li></ul><p><strong> </strong></p><p><strong>Location </strong></p><p>Yokohama</p><p><strong> </strong></p><p><strong>Salary</strong></p><p>5 million yen</p><p><strong> </strong></p><p>Reference Number: 06940-0013376551</p><p> </p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/TWlraXRvLk5haXRvLjQ4MjQyLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>Governance & Framework Alignment</strong></p><ul><li>Conduct SSF-based assessments, and update as well as translate policies and procedures.</li><li>Standardize program processes across all regions, including Third Party Risk Management (TPRM) and Vulnerability Management (VM).</li><li>Harmonize the program with regional offices and headquarters.</li></ul><p><strong>Risk & Compliance Operations</strong></p><ul><li>Provide end-to-end TPRM program management and monitor risk posture using available tools.</li><li>Identify risks in new implementations and with ad hoc requirements.</li></ul><p><strong>Incident Response & Security Operations</strong></p><ul><li>Update the global Incident Response plan, promote it, and drive its adoption across all regions.</li><li>Organize tabletop exercises and enhance Security Operations Centers.</li><li>Support security incident management and address zero-day vulnerabilities.</li></ul><p><strong>Technical Assessments & Vulnerability Management</strong></p><ul><li>Oversee vulnerability management, baselining, and dashboard reporting.</li><li>Perform configuration hardening and threat intelligence mapping.</li><li>Assess critical systems and applications.</li></ul><p><strong>Cloud, Infrastructure & Access Security</strong></p><ul><li>Review cloud security policies and conduct cloud security assessments.</li><li>Carry out access reviews for cloud, infrastructure, and applications.</li><li>Support data anonymization solutions.</li></ul><p><strong>Application & Database Security</strong></p><ul><li>Validate security for migration projects and upgrades.</li><li>Manage patches for applications, databases, and middleware.</li><li>Monitor applications to ensure security standards are maintained.</li></ul><p><strong>Awareness & Socialization</strong></p><ul><li>Communicate governance updates and provide incident response training.</li><li>Organize enterprise-wide cybersecurity awareness activities.</li></ul><p><strong>AI & Automation</strong></p><ul><li>Adopt automation tools across TPRM, Vulnerability Management, Incident Response, and policy management.</li><li>Leverage AI agents for decision support and workflow automation.</li></ul><p>Reference No.：06940-0013371376</p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/bHVrZS5mdXJuaXZhbC4zNTI1Ny4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
