Cyber Security Assurance Engineer - Radar Systems

Location: Henlow / Hybrid working

Rate: Up to £570 per day

IR35 Status: Inside IR35

Contract: 7 December 2026 to 31 March 2027

Working Pattern: 0.9 FTE

Closing Date: 17 November 2026 at 11:00

Security Clearance: SC clearance required

Overview

Our customer, a large defence organisation, is seeking an experienced Cyber Security Assurance Engineer to support Project NJORD, which is delivering mitigation solutions to address the effects of offshore wind farms on UK Air Defence Radar capability.

The role will provide specialist expertise across cyber assurance, project security and security engineering, delivering independent, evidence-based advice, maintaining security assurance documentation and challenging supplier submissions to support design reviews, project approvals, acceptance and transition into service.

Team Context

The successful candidate will join the multidisciplinary Project NJORD team within the Air Defence & Maritime Radars Delivery Team, working alongside the Project Lead, Chief Engineer, engineering specialists, commercial and project controls staff, users, assurance authorities and delivery partners.

Key Responsibilities

• Lead and coordinate the integrated security workstream across cyber assurance, project security and security engineering, maintaining an agreed programme of activities aligned with project milestones and design reviews.
• Develop, maintain and assure the Project Security Case and supporting risk evidence, ensuring that security risks, assumptions, dependencies, controls and residual risk decisions are traceable.
• Apply Secure by Design and cyber assurance principles, including self-assessment, plans of action and milestones, threat and vulnerability analysis, and continual assurance planning.
• Review and challenge supplier security architecture, system requirements, designs, test evidence and technical submissions, identifying gaps and defining proportionate corrective actions.
• Provide project and protective security advice, including classification, security aspects, supply-chain security, information handling, cryptographic considerations and interfaces with external systems.
• Plan and support Security Working Groups and engagement with assurance stakeholders, preparing submissions and briefings to support project approvals and operation up to UK SECRET.

Essential Skills and Experience

• Demonstrable Security Profession experience covering at least two of the following, with the ability to integrate all three: cyber assurance, project security and security engineering.
• Experience developing or assuring security cases, security risk assessments and evidence for complex defence, government or similarly regulated systems.
• Practical knowledge of Secure by Design, cyber risk management, threat and vulnerability assessment, security controls and continual assurance across an acquisition lifecycle.
• Ability to review technical and supplier evidence, identify assurance gaps, provide constructive challenge and convert findings into clear, owned and time-bound actions.
• Strong written and verbal communication skills, including production of concise governance papers, assurance arguments, working-group outputs and senior stakeholder briefings.

Desirable Skills and Experience

• Experience of MOD or DE&S acquisition, GEAR/CADMID governance, DART and defence security policy and standards.
• Experience of Operational Technology, radar, command-and-control, safety-related or other mission-critical systems.
• Relevant professional registration, certification or recognised security qualification, such as Chartered status, CISSP, CISM, CCP or equivalent.
• Experience of supply-chain assurance, protective security, cryptographic planning, penetration-test/assurance evidence and transition into service.

Additional Information

• UK nationals only.
• Hybrid working is anticipated, with approximately one day at Henlow and one day on detached duty, subject to project requirements.
• Travel to other MOD, supplier and operational sites will be required where tasking, assurance events or security constraints make this necessary.
• The successful candidate will work collaboratively with project and supplier personnel while maintaining professional independence.
• Compliance with applicable MOD information handling, security and record-management requirements is required. Deliverables may contain OFFICIAL-SENSITIVE or higher-classified information.