Managed Service Lead (Security) - on-site Hampshire

Salary: £61,000 - 101,000 per year

Requirements:

• Significant experience leading cyber security, network security, or boundary security managed services within enterprise, government, or defence environments.
• Strong technical expertise in boundary security technologies, including firewalls, secure gateways, cross-domain solutions (CDS), guard technologies, and secure data transfer services.
• Proven experience managing service delivery, operational risk, major incidents, change management, and continual service improvement.
• Strong understanding of security governance, accreditation, assurance, compliance, and risk management frameworks.
• Experience working within highly regulated, accredited, or mission-critical environments.
• Demonstrable leadership capability, including building, developing, and motivating high-performing technical teams.
• Strong stakeholder management skills, with the ability to engage effectively with engineers, architects, accrediting authorities, customers, and senior leadership.
• Experience supporting security transformation initiatives, including Zero Trust, network segmentation, and security architecture modernisation.
• Bachelors degree in Cyber Security, Computer Science, Information Technology, Network Engineering, or equivalent practical experience.
• Typically, 7 years of experience in cyber security, network security, or security managed service delivery, including leadership responsibilities.
• Strong technical understanding of enterprise firewall platforms, secure gateway and proxy technologies, Cross Domain Solutions (CDS), secure information exchange technologies, network segmentation and Zero Trust Architecture, security monitoring, SIEM, logging, threat detection, TCP/IP networking, routing, switching, DNS, network security principles, and secure architecture and defence-in-depth design patterns.
• Experience operating and governing services within accredited defence, government, or highly regulated environments.
• Working knowledge of client security policies, NCSC guidance, Cyber Essentials Plus, ISO 27001, and security assurance processes.
• Relevant certifications such as CISSP, CISM, CRISC, ITIL, PMP, CCNP Security, Palo Alto PCNSE, Check Point CCSE, Fortinet FCSS/NSE, or equivalent.
• Security clearance (SC/DV) or eligibility to obtain clearance.
• Eligible to meet UK Government and contractual personnel security requirements, including applicable residency requirements, and have the right to work in the United Kingdom.
• Some roles may also be subject to nationality requirements where necessary to meet UK Government or contractual security obligations.

Responsibilities:

• Lead the operational delivery, governance, and assurance of boundary security services.
• Ensure the availability, resilience, performance, and compliance of all DMZ managed service security capabilities.
• Manage and develop multidisciplinary teams of security engineers, analysts, and service specialists.
• Act as the senior escalation point for boundary-related security incidents, coordinating response, recovery, and stakeholder communications.
• Ensure effective implementation of change, configuration, release, and accreditation processes within regulated environments.
• Maintain compliance with applicable security standards, accreditation requirements, client policies, and NCSC guidance.
• Drive continual service improvement, operational efficiency, and service performance optimisation.
• Collaborate with architects, cyber defence teams, risk authorities, accrediting bodies, suppliers, and customer stakeholders.
• Support the adoption of Zero Trust principles, enhanced network segmentation, and advanced monitoring and threat detection capabilities.
• Provide operational reporting, risk management, service assurance, and governance oversight to senior stakeholders.
• Responsible for the operational management, governance, and assurance of systems and controls that protect organisational perimeters and data exchange points.
• Oversee secure gateways, firewalls, cross-domain solutions (CDS), data escalators, and interface controls between security domains.
• Ensure boundary services are designed, implemented, and maintained in accordance with defence security standards, client policies, NCSC guidance, and Zero Trust principles.
• Manage a multidisciplinary team across service delivery, incident response, service improvement, and lifecycle management.
• Maintain service availability and integrity while enforcing strict change control, configuration management, and accreditation processes.
• Act as the primary escalation point for boundary-related incidents and coordinate with security operations, cyber defence teams, and external partners to ensure rapid containment and remediation of threats while maintaining auditability and traceability.
• Support the evolution of boundary security capabilities in line with emerging threats, technology advancements, and defence digital transformation programmes.
• Engage with architects, risk authorities, and accrediting bodies to ensure services align with target architectures and compliance frameworks.
• Continuously enhance operational processes, staff capability, and service performance in a highly regulated and mission-critical environment.

Technologies:

• Firewall
• Support
• ITIL
• Network
• Security
• TCP/IP
• Cisco

More:

hackajob is partnering directly with DXC Technology to hire for this Managed Service Lead (Security) role based in Hampshire, onsite 5 days per week. We are committed to building diverse, inclusive teams and welcome applications from all backgrounds, particularly women, underrepresented groups, and neurodivergent candidates. We offer reasonable adjustments throughout the hiring process and aim to create a supportive, accessible environment. This is a critical site-based role focused on boundary security, DMZ managed services, and secure data exchange, with strong collaboration across account leadership, delivery teams, recruitment, architects, and customer stakeholders. We also prioritise in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances.

last updated 39 week of 2026