Cambridge, UK On-site Full-time

Renesas Electronics is hiring a Staff Product Security Engineer

Responsibilities

  • Develop and run security regression tests to validate ongoing system integrity
  • Lead threat modeling efforts for both current systems and new feature development
  • Conduct hands-on offensive security testing that simulates real-world attack scenarios
  • Discover genuine security flaws using in-depth platform knowledge and awareness of OWASP Top 10 risks
  • Maintain long-term security of existing and new system functionality by proactively uncovering vulnerabilities
  • Design and manage test suites that cover key security-sensitive workflows
  • Ensure fixed security issues do not reappear in future releases
  • Embed security regression checks within continuous integration and deployment pipelines
  • Set and track test coverage goals for high-risk areas such as authentication, APIs, and data handling
  • Facilitate formal threat modeling sessions for system components and architectural changes
  • Map out potential attack vectors, misuse cases, and system trust boundaries
  • Convert identified threats into actionable test cases, security controls, and mitigation strategies
  • Integrate threat modeling into the full product development lifecycle
  • Carry out manual and automated security assessments that reflect real attacker tactics
  • Focus efforts on discovering high-severity, exploitable vulnerabilities with tangible impact
  • Assess the practical exploitability and business consequences of discovered flaws
  • Collaborate with engineering groups to replicate problems, prioritize fixes, and confirm resolutions
  • Regularly evaluate the system against the OWASP Top 10 web security categories
  • Leverage deep understanding of the product to expose subtle, context-dependent weaknesses
  • Move beyond automated scanning tools to detect logic errors and abuse scenarios
  • Review proposed product changes for potential security implications
  • Verify that all modifications include threat modeling and are protected by regression tests
  • Serve as a security checkpoint while supporting teams with practical guidance and tools
  • Promote efficient security practices without introducing excessive process delays
  • Partner with engineering, architecture, and platform operations teams to strengthen security outcomes

Responsibilities

  • Building and executing security regression testing
  • Driving threat modeling across existing and new functionality
  • Conducting targeted offensive security activities (Red Team–style testing)
  • Identifying real vulnerabilities based on a deep understanding of our platform and the OWASP Top 10 Web Application Security Risks
  • Ensure that both existing functionality and new changes remain secure over time, and that real vulnerabilities are discovered before customers do.
  • Security Regression Testing Design and maintain security regression test suites covering critical application flows
  • Ensure vulnerabilities, once fixed, are permanently prevented from recurring
  • Integrate security regression into CI/CD pipelines
  • Define coverage targets for security-critical areas (auth, access control, APIs, data flows)
  • Threat Modeling Lead structured threat modeling sessions for: Existing system components New features and architectural changes
  • Identify attack surfaces, abuse cases, and trust boundaries
  • Translate threats into: Test cases Security requirements Mitigation plans
  • Ensure threat modeling becomes a continuous lifecycle activity
  • Offensive Security / Red Team Activities Perform manual and automated security testing simulating real attacker behavior
  • Focus on high-impact vulnerabilities, not theoretical findings
  • Validate exploitability and business impact
  • Partner with engineering teams to: Reproduce issues Prioritize fixes Validate remediation
  • OWASP Top 10–Driven Vulnerability Discovery Continuously assess the platform against OWASP Top 10 categories
  • Use deep product knowledge to find non-obvious, context-specific vulnerabilities
  • Go beyond tooling (DAST/SAST) to uncover logic flaws and abuse paths
  • Security Assurance for Product Changes Review new features and changes for security risks
  • Ensure all changes are: Threat-modeled Covered by regression tests
  • Act as a security gatekeeper without becoming a bottleneck: Enable teams with guidance and tooling Avoid heavy process overhead
  • Collaboration & Enablement Work closely with: Engineering teams Architecture SRE / Platform teams
  • Contribute to secure-by-design practices
About company
Renesas Electronics
Renesas Electronics designs and manufactures semiconductor solutions, including power management chips for a wide range of applications in consumer and industrial markets.
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Job Details
Category Security
Posted 9 days ago