Network & Security Architect

Salary: £65,000 - 65,000 per year

Requirements:

• Strong background in network architecture, design and network security.
• Understanding of secure network infrastructure within regulated or high assurance environments.
• Knowledge of network technologies, security controls, segmentation and secure connectivity principles.
• Appreciation of cloud adoption strategies and the challenges of integrating cloud services within secure environments.
• Ability to communicate complex technical concepts clearly to both technical and non-technical audiences.
• Experience leading design reviews, governance discussions and technical decision making.
• Strong stakeholder management skills with the ability to build consensus across multiple teams.
• Comfortable operating within large, multidisciplinary and geographically dispersed organisations.
• Able to balance technical risk, business requirements and security considerations when developing solutions.
• Motivated by continuous learning and professional development within a technically demanding environment.
• British citizen able to obtain and maintain Developed Vetting (DV) clearance.
• Proven experience in network architecture and the design of secure network environments.
• Strong understanding of network security principles, controls and technologies.
• Ability to lead technical discussions, architectural reviews and design workshops with a range of stakeholders.
• Experience working with engineering, security, operational or customer facing teams within complex technical environments.

Responsibilities:

• Design secure network architectures that support complex business and operational requirements.
• Provide architectural leadership throughout the full project lifecycle, from initial concept and feasibility through to implementation and operational handover.
• Define network security approaches, standards and architectural roadmaps across a range of projects and environments.
• Work closely with security specialists, network operations teams, infrastructure engineers and technical stakeholders to ensure resilient solutions are delivered.
• Facilitate technical workshops, architecture reviews and design discussions to achieve agreement across multiple stakeholder groups.
• Evaluate new technologies and contribute to the adoption of modern infrastructure and cloud based capabilities where appropriate.
• Support secure network environments across different classifications and operational requirements.
• Contribute to both strategic architectural initiatives and project specific technical challenges.

Technologies:

• Cloud
• Support
• Network
• Security
• Architect

More:

We are offering a full-time hybrid role based in Hertfordshire, typically requiring 2 to 3 days onsite each week depending on programme requirements. You will take ownership of secure network architecture across complex defence programmes, influencing critical environments from concept through to delivery. This role offers the opportunity to broaden your architectural influence, develop expertise in secure infrastructure, network security and emerging cloud technologies, and work within a highly regulated setting. We offer a salary in the region of £65,000 depending on experience, an annual performance-related bonus of up to 21% of salary, combined employer and employee pension contributions of up to 14%, and flexible working arrangements designed to support work-life balance.

last updated 31 week of 2026