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.
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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!
Skills Required
- 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 DEF STAN 00-55/56, IEC 61508, or MIL-STD-882E
- Ability to assess risk, influence design decisions, and solve complex engineering challenges
- Experience in defence, aerospace, rail, nuclear, marine, automotive, or another safety-critical industry
- Experience in RAM, Human Factors, or EcoDesign
- Knowledge of UK MoD, MAA, CAA, or maritime regulatory environments
Thales Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Thales and has not been reviewed or approved by Thales.
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Retirement Support — Retirement plans with employer contributions and matches, profit sharing, and share purchase opportunities are emphasized across multiple regions. These elements are positioned as competitive components of total rewards.
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Leave & Time Off Breadth — Generous PTO that increases with tenure, paid holidays, and paid military, maternity, and paternity leave are described. This breadth supports work–life balance across locations.
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Flexible Benefits — Hybrid work options, flexible schedules, and parental supports such as childcare benefits and leave for sick children are available in several markets. Flexibility is presented as a core part of the employee experience.
Thales Insights
What We Do
Thales is a global high technology leader investing in digital and “deep tech” innovations – connectivity, big data, artificial intelligence, cybersecurity and quantum technology – to build a future we can all trust, which is vital to the development of our societies. The company provides solutions, services and products that help its customers – businesses, organisations and states – in the defence, aeronautics, space, transportation and digital identity and security markets to fulfil their critical missions, by placing humans at the heart of the decision-making process.
