Matchtech

Security Engineer

Company
Location
Greater Bristol Area, United Kingdom
Posted At
5/9/2025
Advertise with us by contacting: [email protected]
Description

Security Engineer – Bristol (Hybrid)

Security Clearance: SC (Eligible)

DefStan | NIST | Threat Modelling


Are you passionate about securing the future of critical technology? Do you have deep working knowledge of NIST standards and Defence Standards like DefStan 05-138 Issue 3 and DefStan 05-139 Issue 1?

We’re hiring a Product Security Engineer to help shape the security architecture of next-generation defence and technology systems. This is a high-impact role where your expertise in threat modelling, risk assessment, and secure-by-design engineering will drive innovation and resilience from day one.


What You’ll Be Doing:

  • Leading product risk assessments and driving security improvements across the full development lifecycle.
  • Conducting threat modelling and collaborating closely with engineers to embed security at every layer.
  • Applying your hands-on knowledge of DefStan 05-138 and 05-139 to ensure products meet UK defence requirements.
  • Leveraging the NIST 800 series (an absolute must) to establish best-in-class security frameworks.
  • Performing code reviews, penetration testing, and guiding remediation efforts.
  • Producing clear, robust documentation such as RMADS and Security Assurance artefacts.


What You Bring:

  • Proven experience with NIST 800-30, 800-37, 800-53 and related frameworks. (Essential)
  • Practical, working knowledge of Defence Standards, especially DefStan 05-138 and DefStan 05-139.
  • Familiarity with threat modelling tools and methodologies.
  • Solid understanding of ISO 27001/2, ISO 31000, and JSPs.
  • Strong communication skills with the ability to simplify complex risks for non-technical stakeholders.
  • A passion for secure design, ethical problem solving, and delivering high-assurance solutions.


You’ll Thrive In This Role If You:

  • Enjoy working at the intersection of engineering, cyber, and defence.
  • Are detail-oriented and solutions-driven with a calm, analytical approach to security challenges.
  • Can manage multiple projects and priorities in a dynamic, agile environment.

Advertise with us by contacting: [email protected]
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