Expleo is a trusted partner for end-to-end, integrated engineering, quality services, and management consulting for digital transformation. We help businesses harness unrelenting technological change to deliver innovations that provide a competitive advantage and improve everyday life worldwide.

As part of the Expleo Digital and Technology (DigiTech) team, you will report to the Head of Cybersecurity and work within our specialist Cybersecurity Practice. In this role, you will provide cybersecurity assurance within a complex marine/defence engineering programme, supporting the development and delivery of cyber-resilient systems.

This is a consultancy role focused on integrating cybersecurity into programme controls, technical assurance, and regulatory compliance. You will work closely with engineering leads, programme managers, and cybersecurity stakeholders to ensure that security requirements are appropriately defined, evidenced, and governed in alignment with relevant defence and maritime standards.

The role offers the opportunity to influence mission-critical projects within the marine and defence domain, applying structured cybersecurity assurance approaches to complex, multidisciplinary delivery environments.

• Lead or support integrating cybersecurity assurance activities into engineering and programme delivery for marine and defence projects.
• Develop, review, and maintain cybersecurity assurance artefacts, including risk assessments, assurance cases, control matrices, and evidence submissions.
• Ensure alignment with applicable defence and industry standards and other MOD-aligned frameworks.
• Engage with engineering and project teams to ensure cybersecurity is embedded into system design, technical planning, and programme governance.
• Liaise with client representatives, suppliers, and accreditation authorities to support the assurance lifecycle and manage stakeholder expectations.
• Support the preparation for and participation in technical reviews, audits, and risk acceptance activities.
• Contribute to delivering security risk management processes, threat modelling sessions, and security design assessments.
• Provide subject matter expertise on assurance requirements for secure communications, supply chain security, platform integration, and physical security interfaces.
• Maintain accurate, high-quality documentation to support certification, regulatory compliance, and ongoing assurance requirements.
• Contribute to internal knowledge sharing, continuous improvement of assurance methodologies, and development of Expleo’s marine and defence cyber capabilities.

• A degree (or equivalent experience) in Cybersecurity, Information Assurance, Systems Engineering, or a related technical or defence-focused discipline.

• Recognised cybersecurity certifications: CompTIA, CISSP, CISM, CRISC, ISO 27001 Lead Auditor/Implementer, or equivalent.

• Familiarity with MOD, maritime, or defence-specific frameworks: JSPs, DEFSTAN, NIST, IEC 62443, IMO or ISO/IEC 27001.

• DV clearance (or eligibility to obtain DV as a minimum) is required.

• Evidence of ongoing professional development aligned with cybersecurity assurance, defence sector standards, and engineering-led delivery models.

• Strong understanding of cybersecurity assurance principles, risk management, and regulatory compliance in defence or safety-critical environments.

• Proven ability to produce and review assurance artefacts, including security management plans, risk registers, assurance cases, and audit-ready documentation.

• Familiarity with MOD, defence, and marine security requirements, controls, and platform-specific standards.

• Experience applying assurance frameworks or relevant equivalents in a programme or system engineering context.

• Ability to interpret and apply security requirements across the engineering lifecycle, ensuring traceability and alignment with delivery controls.

• Strong stakeholder engagement and communication skills, with experience working across technical, programme, and accreditation teams.

• Capable of contributing to threat modelling, risk assessments, and technical reviews with clear, structured input.

• Confident working independently in complex, multi-stakeholder environments while managing priorities and deadlines effectively.

• High attention to detail and precision in producing assurance, audit, and client regulatory engagement documentation.

• Professional, methodical, and delivery-focused approach with the ability to operate across secure and hybrid delivery settings.

• Ability to contribute to internal improvement initiatives for assurance framework development, tooling standardisation, or bid support.

• Familiarity with the Defence Digital approach to cybersecurity and assurance, including engagement with Accreditor and Authority roles.

• Understanding secure systems engineering and its integration into the Systems Engineering V-Model or through-life engineering assurance models.

• Exposure to product security assurance, safety-security interface assessments, or combined safety and security case development.

• Knowledge of physical and personnel security controls in the context of platform or facility assurance.

• Familiarity with engineering toolsets such as DOORS, Enterprise Architect, or security-specific tooling used in requirement traceability.

• Proven experience in cybersecurity assurance, information assurance, or risk management, including delivery within defence, marine, or other safety-critical environments.

• Proven track record in developing and maintaining assurance documentation.

• Experience embedding Secure by Design principles across the engineering lifecycle, ensuring traceability of security requirements into system design and delivery.

• Involvement in third-party assurance activities, including supplier assurance reviews, control validation, and use of platforms such as Risk Ledger or similar.

• Demonstrable experience working with or applying MOD-aligned frameworks and standards.

• Prior military service or experience working with the armed forces is highly valued, particularly in communications, security, or operational assurance roles.

• Strong understanding of assurance governance and the role of cybersecurity in system integration, communications, or platform delivery contexts.

• Experience collaborating with multi-disciplinary teams, including engineering, programme management, safety, and technical authorities.

• Prior involvement in stakeholder assurance forums, technical reviews, or risk acceptance discussions within regulated environments.

• High-quality written and verbal communication skills, particularly in preparing audit-ready evidence and contributing to accreditation or compliance submissions.

• Experience with defence supplier environments and collaborative assurance across multi-tiered supply chains.
• Experience working within or alongside MOD or maritime defence programmes, particularly those involving platform integration, communications, or control systems.

• You must have the right to work in the UK.

• A strong foundation in cybersecurity engineering or infrastructure security, with an extensive practical delivery experience.

• A proactive and adaptable mindset, with the ability to work independently across diverse client environments. A passion for delivering high-quality, standards-aligned cybersecurity solutions that make a tangible impact.

• Current or eligibility to achieve at a minimum SC/DV clearance.

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges 
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects 
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses 
• Competitive company benefits
• Always working as one team, our people are not afraid to think big and challenge the status quo

• As a Disability Confident Committed Employer we have committed to:
• Ensure our recruitment process is inclusive and accessible
• Communicating and promoting vacancies
• Offering an interview to disabled people who meet the minimum criteria for the job
• Anticipating and providing reasonable adjustments as required
• Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people

“We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age”. 

We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive

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