Cyber Security Engineer- 6 Month Contract- Inside IR35- Hybrid in London

Cyber Security Engineer - 6 Month Contract- Inside IR35- Hybrid in London Rate: £500 per day Inside IR35Location: Hybrid in London Role Overview: We are looking for a Cyber Security Engineer to join on a contract basis, operating as the senior hands-on secure engineer and principal authority on threat modelling, control validation, and security evidence across a CIS Controls v8.1 IG3 programme. The role combines senior cyber architect and SME responsibilities, validating every delivery activity from requirements capture through architecture, build, testing, live validation, and operational handover to BAU. Key Responsibilities: Operate as senior cyber engineer across the full programme life cycle, authoring threat models, control intent statements, and security architecture - chairing Security Council reviews at architecture stage gates and approving detailed security designs before build commences Break down every programme activity through a cyber security lens, defining and evidencing Definition-of-Done acceptance criteria at every stage gate from requirements through to BAU handover Lead security testing, penetration testing, control validation, and evidence pack creation at the test stage gate, revalidating the threat model and signing off that security architecture is proven by test evidence Configure and validate operational controls, manage monitoring tuning, alert calibration, and IR playbook readiness at deployment and hyper-care stages, establishing KRI ..... full job details .....