Location: Bristol, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Senior/Principal System Safety Engineer UK Wide | Hybrid Working Are you passionate about delivering safety-critical solutions that make a real-world impact? We're looking for Safety Engineers at all levels to join our growing team, supporting a diverse portfolio of cutting-edge defence and safety-critical programmes. Working alongside multidisciplinary engineering teams, you'll lead safety assessments, influence design decisions, and ensure complex systems are demonstrably safe, reliable and compliant throughout their lifecycle. What you'll do Lead safety engineering activities across the full project lifecycle. Develop key Safety Artifacts such as Safety Cases, Safety Plans and Hazard Logs. Conduct HAZID (HAzard IDentification) and risk assessment workshops using techniques such as HAZOPs, STPA and SWIFT. Apply qualitative and quantitative safety techniques including FHA, FMECA, FTA, ETA and Bow-Tie analysis. Provide robust safety evidence and assurance to customers and stakeholders. Support multiple projects across a range of innovative technologies and platforms. What we're looking for Experience in Functional or System Safety within a safety-critical environment. Knowledge of Safety Management Systems and safety case development. Strong stakeholder engagement and communication skills. Understanding of standards and regulations such as DEF STAN 00-55/56, IEC 61508 or MIL-STD-882E. Ability to assess risk, influence design decisions and solve complex engineering challenges. Desirable Defence, Aerospace, Rail, Nuclear, Marine, Automotive or other safety-critical industry experience. Experience in related disciplines such as RAM, Human Factors or EcoDesign. Knowledge of UK MoD, MAA, CAA or Maritime regulatory environments. Why Join Us? Work on mission-critical programmes with real operational impact. Exposure to a wide variety of projects and technologies. Opportunities for professional growth in a thriving industry. Flexible hybrid working and UK-wide opportunities. Join us and help shape the safety of tomorrow's most advanced engineering solutions. #LI-DM1 At Thales, we ensure equal opportunities, pay and working conditions for all. The benefits we offer include private medical insurance, buying or selling annual leave, cycle to work schemes, employee discounts, paid volunteering day, stocks and shares, annual bonus and much more depending on the role. Read more about our benefits here. We are committed to creating a workplace where everyone feels valued for who they are and the unique strengths they bring. Discover more about our programmes, employee networks, wellbeing policies, and inclusive features here. If this role isn’t quite right for you, we encourage you to join our talent community where your details will be shared with our recruitment teams for other potential opportunities. Join the Talent Community here. Join Thales in the UK – Innovate with us and shape the future! Interested in finding out more about Thales and why you should join us? Say HI* to new career opportunities.

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