Network & Security Architect (NSA)

Capgemini; Abingdon; On-site; GBP 70,000 - 95,000; Full time

Job summary

Capgemini Engineering is seeking an experienced Network & Security Architect to design and deliver end-to-end network and security architecture solutions aligned with customer business objectives. You will work with customers, delivery teams, and stakeholders to define target architecture and ensure security, resilience, and operational requirements are addressed.

Ideal candidates will have 10+ years in enterprise networking/security, plus hands-on SD-WAN, SASE, ZTNA, and cloud networking

Qualifications

• : 10+ years in enterprise networking, security, infrastructure, or solution architecture.
• : 5+ years in network and security architecture roles.
• : Strong enterprise networking architecture across LAN, WAN, WLAN, routing, switching, DNS, DHCP, IP addressing, load balancing, and high availability.
• : Strong security architecture across firewalls, segmentation, VPN, secure access, NAC, web security, and intrusion prevention.
• : Hands-on architecture with SD-WAN, SASE, ZTNA, cloud security, and hybrid-cloud connectivity.
• : Good understanding of Azure and/or AWS networking, including virtual networks, connectivity gateways, private connectivity, routing, and security controls.
• : Experience designing resilient, scalable, and secure solutions for complex enterprise environments.
• : Ability to produce architecture artefacts, HLDs, LLDs, migration designs, technology standards, and roadmaps.
• : Knowledge of automation, IaC, observability, network management, and service assurance is desirable.

Responsibilities

• Design and deliver end-to-end network and security architecture solutions.
• Collaborate with customers, delivery teams, vendors, and stakeholders to define target architecture.
• Ensure security, compliance, resilience, and operational requirements are met.
• Produce architecture artefacts, roadmaps, and migration designs.
• Provide technical governance and leadership across projects.

Skills

Enterprise networking

Security architecture

SD-WAN

SASE

Zero Trust

Cloud networking

Automation

IaC

Observability

Network management

Tools

Azure

AWS

Firewalls

VPN

NAC

IDS/IPS

Job description

Your roleCapgemini Engineering looking for an experienced Network & Security Architect (NSA) to design and deliver end-to-end network and security architecture solutions aligned with customer business and technology objectives.The role works closely with customers, delivery teams, vendors, and key stakeholders to define target architecture, provide technical leadership, and ensure that security, compliance, resilience, and operational requirements are addressed.In this role you will play a key role in:Network & Security ArchitectureEnterprise Networking & Cloud ConnectivitySolution Design, Transformation & DeliveryPre-sales & Customer EngagementTechnical Governance & LeadershipYour profile10+ years of experience in enterprise networking, security, infrastructure, or solution architecture.5+ years of experience in network and security architecture rolesStrong enterprise networking architecture experience across LAN, WAN, WLAN, routing, switching, DNS, DHCP, IP addressing, load balancing, and high availability.Strong security architecture experience across firewalls, segmentation, VPN, secure access, network access control, web security, and intrusion prevention.Hands-on architecture experience with SD-WAN, SASE, Zero Trust Network Access, cloud security, and hybrid-cloud connectivity.Good understanding of Azure and/or AWS networking, including virtual networks, connectivity gateways, private connectivity, routing, and security controls.Experience designing resilient, scalable, and secure solutions for complex enterprise environments.Ability to produce architecture artefacts, HLDs, LLDs, migration designs, technology standards, and roadmaps.Knowledge of automation, infrastructure as code, observability, network management, and service assurance is desirable.If you're excited about this role but don’t meet every requirement, we still encourage you to apply, your unique experience could be just what we need.Make it real - what does it mean for you?Open access to digital learning platformsActive employee networks promoting diversity, equity and inclusion like OutFront, CapAbility or Women@CapgeminiCapgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who:Declare they have a disability, andMeet the minimum essential criteria for the role.Please opt in during the application process.Capgemini. Make it real.Need to knowAll roles will require a level of security clearance; BPSS OR Security ClearanceOR Developed Vetting.You can bring your whole self to work. At Capgemini building an inclusivefuture is part of everyday life and will be part of your working reality. We havebuilt a representative and welcoming environment, for everyone.About CapgeminiCapgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.Make it real | www.capgemini.com