Boundary Security Managed Service Lead

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. Boundary Managed Service Lead  Location: Farnborough (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 Boundary Managed Service Lead oversees the design, implementation and ongoing management of boundary security and managed services protecting defence organisations' network perimeters. You will manage boundary security operations, lead service delivery teams, ensure SLA compliance, and maintain the security posture of critical defence network boundaries. This role requires deep expertise in boundary security technologies, managed service delivery and defence security protocols. Key Responsibilities Boundary Service Management & Delivery Oversee end-to-end boundary managed service delivery including design, implementation and operations. Manage boundary security SLAs, ensuring 100% compliance with availability, performance and security targets. Lead boundary security operations team, ensuring round-the-clock monitoring and threat detection. Manage boundary service P&L and resource allocation across multiple customer accounts. Establish and maintain boundary service quality standards and operational procedures. Boundary Architecture & Security Design and implement boundary security architectures including firewalls, intrusion detection/prevention and DDoS protection. Architect boundary security solutions aligned with security requirements and defence standards. Design boundary traffic inspection, content filtering and advanced threat protection. Lead boundary security assessments and vulnerability remediation. Incident Management & Threat Response Lead boundary security incident detection, investigation and response. Manage security alerts, anomaly investigation and threat escalation. Coordinate incident response across boundary security team and customer security teams. Conduct post-incident reviews and implement preventative measures Technology & Service Development Evaluate and implement boundary security technologies and tools. Design automation and orchestration for boundary security operations. Lead service improvements and operational efficiency initiatives. Manage technology refresh and boundary appliance upgrades. Develop and implement boundary security monitoring and reporting dashboards. Team Leadership & Customer Management Lead and develop boundary security operations teams. Manage customer relationships and provide executive-level reporting on boundary security posture. Conduct customer reviews and communicate security recommendations. Identify service expansion opportunities and support account growth. Compliance & Security Governance Ensure boundary services maintain compliance. Implement and maintain security event logging and audit capabilities. Support security compliance assessments and third-party audits. Manage personnel vetting compliance for boundary security team. What You’ll Bring Background in boundary security or network security experience. Experience managing boundary security operations or managed security services. Strong background in defence, aerospace or government security programmes. Demonstrated expertise with boundary security technologies (firewalls, IDS/IPS, DDoS protection). Track record of managing security operations teams and delivering managed services. Technical Knowledge Expert-level knowledge of firewall technologies, intrusion, detection/prevention systems and DDoS mitigation. Strong understanding of network security architecture and boundary security design. Proficiency in security incident investigation and threat analysis. Knowledge of security event management, SIEM and log analysis. Understanding of vulnerability assessment and remediation processes. Knowledge of managed service delivery models and SLA management. Personal Attributes Exceptional leadership and team management capabilities. Outstanding customer engagement and communication skills. Strong decision-making under pressure, particularly in security incidents. Detail-oriented with strong focus on SLA compliance. Commitment to security excellence and continuous improvement. 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.