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Job Description

Role: Senior Security Architect

Location: London - needs to be onsite Wednesday and Friday

Duration: 6 month contract

Rate: £625 per day - Inside of IR35

We are seeking an experienced Senior Security Architect to provide security design leadership across major technology change initiatives within a Higher Education / public-sector-style environment.

This role will focus on security architecture assurance, reviewing High-Level Designs (HLDs) and Low-Level Designs (LLDs), advising delivery teams, and ensuring solutions align with agreed security control baselines, organisational risk appetite, and recognised security frameworks.

Key Responsibilities

Review HLDs and LLDs, providing clear, pragmatic security feedback to architects and engineers Define, explain, and advocate baseline security control sets across programmes and projects Ensure designs align with recognised frameworks including NCSC CAF, NCSC CSF, NIST CSF, and NIST SP 800-53 Provide security design assurance across:

Network modernisation modernisation Cloud adoption and migration (AWS ; Azure/GCP acceptable) CI/CD and DevSecOps pipelines

Translate security requirements into actionable design guidance rather than policy-only responses Participate in design forums and governance boards, strengthening secure-by-design delivery Support security risk assessments, threat modelling, and control gap analysis

Key Skills Needed

Ability to review an HLD (High level design) or LLD (low level design)and provide security feedback Understand, explain and able to advocate baseline control sets Understanding of NCSC CSF and 800-53, NCSC CAF Experience of one or more of security elements of Network modernisation, modernisation, cloud adaption (AWS) and migration, or CICD pipeline implementation. NIST CSF Security controls Technical Design Authority - Desirable Higher Education Experience - Desirable

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

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