Security Assurance Lead - Secure, on-site Hampshire

Job description

Job Description: DXC Technology is committed to building diverse, inclusive teams. We welcome applications from all backgrounds and particularly encourage interest from women, underrepresented groups, and neurodivergent candidates. We offer reasonable adjustments throughout the hiring process and are dedicated to creating a supportive, accessible environment for everyone. Security Assurance Analyst Location: Hampshire (onsite 5 days per week) Due to the nature of the work and the customers we support, the successful candidate must be eligible to meet UK Government and contractual personnel security requirements, including the applicable residency requirements for the role, and have the right to work in the United Kingdom. Some roles may also be subject to nationality requirements where these are necessary to meet UK Government or contractual security obligations. The Security Assurance Lead (Joint Design Team) leads security design review, assessment and assurance for defence and aerospace IT programmes. Providing technical security guidance into joint design teams, you will conduct security assessments of proposed IT solutions, ensure security compliance, identify security risks, and recommend security controls. This role requires strong security knowledge, analytical capabilities and the ability to work collaboratively with technical architects and customer teams. Key Responsibilities Security Design Review & Assessment 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. Compliance & Standards Verification 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. Joint Design Team Collaboration 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. Documentation & Reporting 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. Risk Analysis & Mitigation Planning 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. Security Control Validation 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. Stakeholder Communication 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. What You’ll Bring 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. Technical Knowledge Comprehensive understanding of IT security controls and security frameworks. Strong knowledge of network, infrastructure, application and data security. Understanding of threat modelling and risk assessment methodologies. Knowledge of ITAR regulations and export control requirements. Understanding of security standards (ISO 27001, NIST CSF, etc.). Practical knowledge of common IT architectures and technologies. Personal Attributes Strong analytical and problem-solving skills. Excellent leadership skills. Excellent written and verbal communication skills. Attention to detail with ability to identify gaps and inconsistencies. Collaborative approach to working with architects and technical teams. Ability to explain complex security concepts clearly. Professional approach to challenging design decisions on security grounds. At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive. Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here .