We're looking for a DV‑cleared Information Assurance Engineer to strengthen assurance capability across a critical defence programme. This is a delivery‑focused role working at the heart of secure systems, helping to close assurance gaps, manage cyber risk, and ensure systems are secure, compliant, and accreditation‑ready. You'll work alongside Security Leads, system owners, and enterprise stakeholders to support Secure by Design, manage risk arising from ST&V and CSF assessments, and drive POA&M‑led remediation across the estate. What You'll Be Doing Supporting Secure by Design (SbD) documentation uplift across prime and supplier environments Validating security control compliance using CSF tracker maturity assessments Identifying, documenting, and articulating assurance gaps and observations Conducting risk assessments for control deficiencies arising from: ST&V failures CSF maturity shortfalls Creating and maintaining Risk Detail Records (RDRs) in line with JSP 892 Managing and tracking POA&Ms, ensuring clear ownership, timelines, and evidence‑based closure Supporting compliance activities aligned to: Secure by Design NIST RMF NIST CSF v2.0 Reviewing and uplifting system assurance documentation, including: System Operating Procedures (SyOPs) Codes of Connection (CoCo) Supportingcyber resilience and incident preparedness, including: Incident response playbooks Tabletop Exercises (TTX) and post‑exercise assurance capture What We're Looking For Active DV clearance (mandatory) Strong experience in Information Assurance / Cyber Security Assurance / GRC Proven background in risk management, POA&M remediation, and assurance governance Working knowledge of: NIST RMF / NIST CSF Secure by Design principles Defence assurance environments Comfortable working on‑site in a secure facility Clear communicator, able to engage with technical and senior stakeholders Why Apply High‑impact role on a sensitive, high‑profile programme Clear scope, strong governance, and meaningful assurance work Competitive inside‑IR35 rate reflecting DV clearance and on‑site delivery Work with experienced security and delivery professionals Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy