Senior Security Engineer supporting security engineering and SIEM administration at Ardent. Focused on improving threat detection and response within vSOC environments in Washington, D.C.
About the role
- Cybersecurity Assurance Consultant within Expleo's Cybersecurity Practice providing assurance on marine and defence engineering programmes. Integrating cybersecurity into programme controls and compliance while collaborating with engineering teams.
Responsibilities
- 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.
Requirements
- 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.
Benefits
- 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
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