Senior Environmental Test Engineer

Location:

Belfast, 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.

Location: based in Belfast, onsite with optional 1 day hybrid working per week
Other: permanent, full-time
Travel: flexibility to work overtime and travel extensively within the UK and internationally, often at short notice and for periods of up to four weeks, to support operational and project requirements is essential

Join Thales and play a pivotal role in delivering world-class trials and environmental testing for some of the most advanced defence and missile systems in service today.

• Work on cutting-edge defence technology supporting critical programmes that help protect armed forces across the UK and around the globe

• Enjoy variety, autonomy and real responsibility , leading work packages from planning and testing through to analysis, customer engagement and technical delivery

• Develop your career in a specialist, highly respected team , gaining exposure to live trials, advanced test facilities, multidisciplinary engineering projects and international travel opportunities

Join Thales, a global leader in defence technology, and help deliver advanced capabilities to armed forces around the world. As a Senior Environmental Test Engineer, you’ll join a specialist team responsible for testing, validating and supporting cutting‑edge defence and missile systems for UK MOD and international customers.

Reporting to the Head of Trials & Environmental Testing, you’ll take ownership of work packages across development, qualification and in‑service trials, combining hands‑on testing, technical analysis, customer support and problem‑solving to ensure products perform when it matters most. You’ll work with a wide range of specialist equipment and facilities, including environmental chambers, (high & low temperature, humidity and salt spray), vibration and shock test systems, sound and vibration measurement instrumentation and signal conditioning, blast trial facilities, conducting and analysing acoustic and blast measurements to support product qualification and performance validation.

We’re looking for a proactive, hands‑on engineer who enjoys solving complex technical challenges, working across multidisciplinary teams and taking ownership of delivery. Offering excellent variety and autonomy, this role will see you working in laboratories, at customer sites and on trial ranges, supporting critical defence programmes in the UK and overseas. Flexibility is essential, as the role involves occasional out‑of‑hours testing, additional hours to support trials, and regular UK and international travel, including deployments of up to four weeks at a time.

Building a Future, we can all trust.

Integrated Airspace Protection Systems (IAS) - our main purpose is to protect and defend. We provide rapid integrated solutions for detection, coordination, fire control, engagement and support. We cover three sectors:
Surface Attack & Air Defence (UK), Air Defence (International) and Air Operations & Services as well as Space.

We offer a competitive salary and benefits package designed to support our employees’ wellbeing and professional growth, which includes:

• Half day every Friday, usually finishing around 13:00

• 28 days annual leave (plus bank holidays) with opportunity to buy up to 40…