Siemens
Senior Cyber Security Engineer
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Senior Cyber Security Engineer – Rail Infrastructure
Location: Ashby or Chippenham (preferred), consideration for Birmingham, Poole, York, or Glasgow
Siemens Mobility delivers secure, integrated rail infrastructure systems—including signalling, electrification, power SCADA, and station information—backed by advanced networks and cyber security. Our engineering team collaborates across project lifecycles, combining industry standards, in-house solutions like CoreShield, and trusted third-party tools to ensure resilient, compliant systems.
About the Role
As a Senior Cyber Security Engineer, you’ll play a pivotal role in shaping secure Operational Technology (OT) environments, blending expertise in product security and end-to-end solution security. This position demands leadership in designing, testing, and validating cyber security measures while aligning with evolving industry standards (e.g., NCSC Cyber Assessment Framework (CAF), ISO 27001, NIST, IEC 62443).
Key Responsibilities
You will make impactful contributions by:
- Stakeholder Engagement
- Collaborating with customer security teams to align on strategy, risk tolerance, and assurance needs, ensuring project security requirements adhere to standards.
- Representing security engineering at project milestones, driving continuous improvement through lessons learned and incident response analyses.
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Security Architecture & Design
- Designing secure system architectures, including zoning, conduits, and third-party component evaluations.
- Defining security controls and conducting threat/risk analyses, with countermeasures tailored to risk acceptance criteria.
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Compliance & Validation
- Reviewing and compiling security artefacts (test results, penetration findings, assurance evidence).
- Validating implementations through penetration testing (e.g., identifying vulnerabilities, assessing remediation effectiveness) and acceptance testing (factory/site).
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Deployment & Monitoring
- Assisting customer service teams with SIEM deployment, security configuration (e.g., firewalls, DMZ, agents), and incident response.
- Supporting network security configurations, from foundational protections to specialised applications.
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Team Development & Knowledge Sharing
- Serving as a mentor/lead for junior team members, fostering capability growth.
- Staying ahead of emerging threats, technologies, and standards to support ongoing deliveries.
Essential Requirements
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Education/Qualification
- Degree level (or equivalent) in engineering, science, or a numerate discipline, with progression towards professional accreditation optional.
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Technical Expertise
- Proven leadership in OT cyber security engineering, with hands-on experience applying the IEC 62443 standard series.
- Strong preference for certifications, including:
- NCSC Certified Professional Degree
- Certified Information Systems Security Professional (CISSP)
- NCSC Cyber Professional (CCP)
- Global Industrial Cyber Security Professional (GICSP)
- NCSC ICS Practitioners or SANS ICS Security Professionals
- Penetration testing experience (desirable).
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- Soft Skills & Experience
- Experience in mentoring engineers and bridging technical gaps for non-experts.
- Outstanding communication skills and ability to influence internal/external stakeholders effectively.
Benefits Package
- Competitive salary, tailored to expertise
- 26 days paid holiday (+ opportunity to buy/sell up to 5 days annually)
- Attractive pension scheme
- Subsidised BUPA healthcare
Siemens Difference
Siemens Mobility is committed to diversity, equity, and inclusivity, fostering an environment where every voice is valued. Our growth mindset culture empowers you to learn, adapt, and innovate—no experience is insurmountable if you demonstrate transferable potential.
Let’s shape tomorrow together. Apply to join us!
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