Managed Service (Network Security) - on-site Hampshire

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.

Managed Service Lead (Network Security)

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.

DXC Technology is looking for an experienced technical team lead responsible for the DMZ Managed Service. Accountable for gateway and guard operations, segmentation controls and compliance with security boundary requirements; experienced with multi domain routing, CDS/guard patterns and high assurance boundary architectures.This is a critical, site-based role responsible for ensuring the right skills are in place at the right time to meet client demand, working closely with account leadership, delivery teams, and recruitment.

You will be responsible for the operational management, governance, and assurance of all systems and controls that protect organisational perimeters and data exchange points. This includes oversight of secure gateways, firewalls, cross-domain solutions (CDS), data escalators and interface controls between security domains. The role ensures that boundary services are designed, implemented, and maintained in accordance with defence security standards, such as client policies, NCSC guidance, and Zero Trust principles, with a strong emphasis on risk reduction, resilience, and compliance.

This includes driving the adoption of Zero Trust Architecture, improving network segmentation, and implementing advanced monitoring and threat detection capabilities at ingress and egress points. The role also engages with architects, risk authorities, and accrediting bodies to ensure services align with target architectures and compliance frameworks, while continuously enhancing operational processes, staff capability, and service performance in a highly regulated and mission-critical environment.

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.

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