Security Architect - SC Cleared at Layer7, Remote, 6 Months, £Contract Rate (Outside IR35)

£600 per day | Outside IR35 | Initial 6-Month Contract (+ 2 years)
Remote with Occasional Travel
SC Clearance ESSENTIAL

We are seeking an experienced Security Architect to join our consultancy team and deliver into a key UK public sector client. The successful candidate will play a critical role in supporting large-scale transformation programmes, producing security artefacts, and providing expert assurance across complex IT and cloud environments.

Role Overview

As part of our delivery team, you will produce, review, and advise on a wide range of security documentation and architectural outputs, including:

• Security architecture diagrams (HLD/LLD)

• IT Health Check (ITHC) scopes

• Inputs to Control Assessment Workbooks (CAWs)

• Design Authority inputs and project documentation

• Security requirements, governance, and risk mitigation strategies

• Technical security guidance across multiple concurrent workstreams

Current and active SC clearance is essential for this engagement.

Key Responsibilities

• Provide clear, actionable cyber security advice to the public sector client across BAU, technical refresh, and new delivery environments.

• Lead the design, review, and assurance of secure architectures across cloud and on-premises solutions.

• Perform risk assessments and threat modelling (MITRE ATT&CK, STRIDE, DREAD, PASTA) and define mitigation strategies.

• Ensure adherence to UK Government security policy, frameworks, and recognised industry standards.

• Support Secure by Design practices and embed security across the full delivery lifecycle (monitoring, patching, assurance, operational considerations).

• Maintain and enhance reference architecture materials, patterns, controls, and guidance.

• Influence architectural decisions and work closely with stakeholders to manage risks, dependencies, and delivery outcomes.

• Provide security assurance across large programmes, supporting design governance, supplier assurance, and technical reviews.

• Develop and maintain client security policies, standards, and procedures.

• Keep current with emerging threats, technologies, and best practice to continuously improve security posture.

Skills & Experience Required

• Proven experience as a Security Architect delivering into UK public sector environments.

• Strong grounding in Secure by Design, cyber risk management, and resilient system security.

• Expertise in cloud security (AWS, Azure and modern architectural patterns.

• Ability to articulate complex security concepts clearly to both technical and non-technical audiences.

• Strong stakeholder management and supplier engagement capabilities.

• Experience with security tooling (firewalls, IDS/IPS, encryption, vulnerability management, etc.).

Desirable Skills & Certifications

• CISSP, CISM, CCSP, SABSA, TOGAF, GICSP, GRID or equivalent.

• Experience with DevSecOps practices and securing containerised/microservices environments.

• Understanding of Zero Trust principles.

Clearance

Active SC Clearance is mandatory.
We are unable to consider applicants without current SC clearance.