Security Architect – Defence Programme - Design & Delivery

Contract | £650 per day | Outside IR35 | SC Cleared (DV advantageous)

Location, Preston - On-site minimum 3 days per week

Our client is supporting a major Defence modernisation programme and is expanding its specialist capability to meet growing delivery demand. We are seeking a Security Architect with strong hands‑on delivery experience to join a high‑integrity, air‑gapped environment team.

This role requires a practitioner who excels in applied security architecture, secure‑by‑design principles, and engineering‑led security integration. You will work directly with Digital Engineering stakeholders to produce security architecture artifacts, threat modelling, design assurance, and reusable patterns that strengthen the programme’s security posture.

Key Responsibilities

You will lead and deliver core security architecture outputs including: