Cyber Security Architect

Cyber Security Architect

Active SC Clearance required

Hybrid working with occasional visits at Reading

Outside IR35 - £600-£650 per day

Exciting assignment working on a Defence modernisation programme!

We are seeking a Cyber Security Architectwith a hands-on delivery experience who excels in applied security architecture, secure-by-design principles, and engineering-led security integration.

You will be a part of a bigger team, working with a group of a Senior Security Architects and 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:

• Digital Engineering Security Artifacts and Engagement Report


• Security Requirements Specification


• Security Principles Framework


• Infrastructure Mapping Document & Security Architecture Design Pack


• Threat Modelling Report


• Reusable Security Pattern Library


• Knowledge Transfer Pack (training materials, handover content, recorded walkthroughs)

We are looking for someone with:

• Extensive Security Architecture / Security Consulting experience


• Strong track record designing and reviewing secure infrastructure


• Proven experience applying secure-by-design principles


• Experience with Digital Engineering, secure architectural controls, and pattern-based design


• SC or DV clearance is essential

Engagement Model

• 3 days per week on site in an air-gapped environment


• Location: Reading


• CIRCA Outside IR35 £650/day


• Initial contract will be for 3 months, with an option to extend (as this programme is planned for few years)