Senior Boundary Security Lead — DMZ & Zero Trust

DXC Technology; England; Hybrid; GBP 80,000 - 110,000; Full time

Job summary

DXC Technology in Hampshire is seeking an experienced Managed Service Lead for Network Security to oversee the DMZ boundary services, gateways, CDS, and secure data exchanges across multi-domain environments. You will lead a multidisciplinary team and ensure compliance with defence standards and risk reduction.

The role emphasizes Zero Trust, network segmentation, and advanced monitoring, working with architects, risk authorities, and customers to maintain auditability in a highly regulated

Qualifications

• Bachelor's 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 and network security principles.

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 and remediation.
• Ensure effective implementation of change, configuration, release, and accreditation processes.

Skills

Leadership

Cyber security

Boundary security

Stakeholder management

Incident management

Education

Bachelor's degree in Cyber Security or related field

Security clearance (SC/DV) eligibility

Tools

Enterprise firewall platforms

Secure gateways

Cross Domain Solutions (CDS)

Guard technologies

Security monitoring / SIEM

TCP/IP networking

Job description

DXC Technology in Hampshire is seeking an experienced Managed Service Lead for Network Security to oversee the DMZ boundary services, gateways, CDS, and secure data exchanges across multi-domain environments. You will lead a multidisciplinary team and ensure compliance with defence standards and risk reduction.

The role emphasizes Zero Trust, network segmentation, and advanced monitoring, working with architects, risk authorities, and customers to maintain auditability in a highly regulated