Security Assurance Lead, Defence & Aerospace Design

DXC Technology; England; On-site; GBP 55,000 - 75,000; Full time

Job summary

DXC Technology is seeking a Security Assurance Analyst to lead security design review and assessment for defence and aerospace IT programmes. The role requires strong security knowledge, risk assessment capabilities, and the ability to work with technical architects and customer teams.

Onsite in Hampshire, candidates must meet UK residency and security eligibility. The successful candidate will conduct detailed security reviews, verify compliance with Defence Security Policy and ITAR, and

Qualifications

• Experience in information security including security assessment or assurance type 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.

Responsibilities

• Conduct detailed security reviews of IT architecture and design documentation.
• Assess security controls and identify gaps against security requirements.
• Evaluate threat models and security assumptions underlying IT designs.
• Review security specifications for completeness and 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 Classification Guides.
• Assess adherence to ITAR regulations and export control requirements.
• Review security controls against IS1 (IS1A) and other 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 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.
• 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 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 security requirements and implications.

Skills

Information security experience

Security design reviews

Defence/aerospace/government security

Security certification & accreditation

Team leadership in security/JDT

IT architecture & design principles

Job description

DXC Technology is seeking a Security Assurance Analyst to lead security design review and assessment for defence and aerospace IT programmes. The role requires strong security knowledge, risk assessment capabilities, and the ability to work with technical architects and customer teams.

Onsite in Hampshire, candidates must meet UK residency and security eligibility. The successful candidate will conduct detailed security reviews, verify compliance with Defence Security Policy and ITAR, and