SC Technical Architect

SC Technical Architect (C3I Interoperability) – Contract (Outside IR35)

Rate: £550 – £650 Per day (Outside IR35)
Contract: Initial 3 months (extension possible)
Location: Portsmouth / South Coast (mostly remote, with 1-2 days on-site per month)
Clearance: Active SC required
Start: ASAP
Interview process: Likely 1 stage

A UK defence programme is seeking an SC-cleared Technical Architect to support the development of a next-gen C3I interoperability reference architecture. This role is ideal for an architect who enjoys defining standards, producing high-quality architecture artefacts, and supporting technical governance and customer assurance.

What you’ll be doing

• Helping define and evolve the reference architecture from early-stage foundations
• Creating/enforcing platform-wide standards for interoperability, security, deployment and operational observability
• Providing architecture input into engineering implementation teams
• Producing architecture design / systems requirements documentation to support reviews
• Feeding evidence-based insights into design reviews and technical assurance
• Supporting documentation required for customer approval and future deployment

What we’re looking for

• Strong Technical Architecture experience in complex distributed systems (regulated / mission-critical)
• Track record of taking early concepts into mature, operationally deployable architectures
• Secure design expertise (e.g., zero trust, identity, cross-domain, secure connectivity, data exchange controls)
• Comfort working in agile teams, influencing decisions and maintaining coherence
• Defence / NATO C3I interoperability awareness beneficial
• Tools/frameworks: Jira, Confluence, Visio; MoDAF beneficial
• Experience producing governance/assurance documentation beneficial

To apply: Send your CV and confirm SC status, availability, and ability to travel to Portsmouth 1-2x/month.