Responsibilities & required experience Product Security support across the full product lifecycle using Secure by Design (SbD) principles * Project security planning, risk assessment, and assurance activities * Delivery of Information Security (IS) and Information Assurance (IA) documentation (e.g. RMADS, SbD artefacts) * Ensure security deliverables meet customer, regulatory, and defence requirements * Chair and contribute to internal and external security reviews and working groups * Work closely with engineering, development, and QA teams to embed security best practice * Input security manpower estimates into bid and project activities * Experience with recognised security frameworks (e.g. NIST 800 series, NCSC methodologies) * Background in defence, government, or security‑regulated environments preferred Must be a UK national from birth and hold or be eligible to obtain SC clearance. Working arrangements - Hybrid (Minimum 2 days on site a week) Salary - Up to £70,000 DOE benefits Start date - ASAP