Security Assurance Analyst (Joint Design Team

Job Description

DXC Technology is a Fortune 500 company delivering mission‑critical IT solutions globally. Our Aerospace and Defence Hub in Farnborough works on sensitive defence programmes requiring highest security standards and rigorous assurance practices.

The Security Assurance Analyst (Joint Design Team) leads security design review, assessment, and assurance for defence and aerospace IT programmes. The role involves providing technical security guidance to joint design teams, conducting security assessments of proposed IT solutions, ensuring MOD security compliance, identifying security risks, and recommending security controls. It requires strong security knowledge, analytical capabilities, and the ability to work collaboratively with technical architects and customer teams.

• Conduct detailed security reviews of IT architecture and design documentation
• Assess security controls and identify gaps against MOD security requirements
• Evaluate threat models and security assumptions underlying IT designs
• Review security specifications for completeness and MOD compliance
• Identify residual security risks and recommend mitigation strategies
• Support authority leads and advise third parties

• Verify IT designs comply with Defence Security Policy and MOD Classification Guides
• Assess adherence to ITAR regulations and export control requirements
• Review security controls against IS1 (IS1A) and other MOD security standards
• Validate data handling and classification compliance
• Ensure personnel security and vetting requirements are addressed

• Participate actively in joint design team meetings and architecture workshops
• Provide security input to infrastructure, network and application architecture decisions
• Review proposed solutions from a security perspective and recommend alternatives
• Challenge assumptions and help identify security risks early in design phase
• Support customer security decision‑making through technical analysis

• Prepare detailed security assessment reports documenting findings and recommendations
• Document security control specifications and implementation guidance
• Create security assessment matrices and compliance traceability matrices
• Provide executive summaries of security findings for stakeholder communication
• Maintain security documentation for compliance and audit purposes

• Conduct security risk assessments using appropriate risk methodologies
• Develop risk matrices and prioritise risks based on likelihood and impact
• Recommend security controls and mitigation strategies for identified risks
• Support risk management processes and evidence gathering for MOD approval
• Track risk mitigation and provide assurance of control implementation

• Validate implementation of recommended security controls
• Review security test plans and validation approaches
• Provide assurance that security controls operate effectively
• Support security certification and accreditation activities
• Document security assurance evidence for MOD compliance

• Communicate security findings and recommendations clearly to technical and non‑technical stakeholders
• Facilitate security discussions between design team and customer security teams
• Explain complex security concepts in accessible language
• Support customer understanding of MOD security requirements and implications

• Must hold or be eligible to obtain DV clearance – Essential
• 10 years continuous UK residency required for DV eligibility

• Minimum 8 years’ information security experience including security assessment or assurance role
• Demonstrated experience conducting security design reviews and assessments
• Strong background in defence, aerospace or government security programmes
• Experience with security certification and accreditation processes
• Experience managing a team in a security/JDT function
• Working knowledge of IT architecture and design principles

• Comprehensive understanding of IT security…