Mane Contract Services
Senior Cyber Security Engineer
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Senior Cyber Security Engineer – Assurance | 12-Month Contract
Work arrangement: Hybrid
Weekly onsite requirement: Chippenham or Ashby-de-la-Zouch
Contract: 12 months
Sector: Rail / Operational Technology / Critical Infrastructure
We’re looking for an experienced Senior Cyber Security Engineer (Assurance) to join a leading rail technology organisation, supporting the delivery of secure, resilient and safety-critical Operational Technology (OT) systems.
This is a senior technical role with responsibility across the full engineering lifecycle — from bid and architecture through development, testing, commissioning and ongoing support.
You’ll work closely with engineering, project delivery, product, customer and security teams to ensure that cybersecurity requirements are properly defined, implemented, tested and evidenced.
What you’ll be doing
- Lead cybersecurity engineering and assurance activities across OT and rail projects.
- Develop and maintain Cyber Security Management Plans and track delivery against time, cost and quality.
- Define and manage cybersecurity requirements throughout the engineering lifecycle.
- Perform threat and risk assessments and define appropriate security controls and countermeasures.
- Develop secure architectures using zones and conduits and establish appropriate protection mechanisms.
- Apply IEC 62443 and relevant rail/OT cybersecurity standards and regulations.
- Support compliance with TS 50701, CENELEC, NIS/NIS2, EU Cyber Resilience Act and other applicable requirements.
- Assess third-party products and components against security requirements.
- Review security engineering artefacts and assurance evidence.
- Develop security test strategies and verify security requirements during system, factory and site acceptance testing.
- Support and/or lead security validation activities, including penetration testing and vulnerability assessment.
- Represent cybersecurity at project milestone and stage-gate reviews.
- Mentor and develop engineers within product and solution security.
- Support vulnerability and incident analysis and contribute to continuous improvement.
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What we’re looking for
You’ll ideally have:
- Strong experience in cybersecurity engineering within demanding OT/industrial environments.
- Proven hands-on experience applying IEC 62443.
- Practical understanding of CENELEC standards and, ideally, TS 50701.
- Experience with security architecture, zoning/conduits, threat & risk assessment and security requirements management.
- Experience developing security assurance evidence across an engineering lifecycle.
- Knowledge of security testing, vulnerability assessment and penetration testing.
- The ability to engage confidently with customers, engineers, project teams and senior stakeholders.
- Experience mentoring or developing other engineers.
- A degree (or equivalent) in engineering, science, cybersecurity or another numerate discipline.
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Desirable certifications: CISSP, CSSLP or CESG Certified Professional (CCP).
Why this role?
This is an opportunity to work on real-world, safety-critical rail and infrastructure systems, helping shape cybersecurity across signalling, control systems, SCADA, electrification and station information systems.
You’ll have genuine technical influence across the lifecycle and will be working at the intersection of cybersecurity, engineering, OT and critical infrastructure.
UK-based | Weekly face-to-face presence required in Chippenham or Ashby-de-la-Zouch
If you’re an experienced OT cybersecurity professional with strong IEC 62443 and security assurance experience, I’d be interested in speaking with you.
Apply now or message me directly for more information.
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