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Senior Environmental Test Engineer

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: Thales
Full Time, Part Time position
Listed on 2026-09-02
Job specializations:
  • Engineering
    Test Engineer, Quality Engineering
Job Description & How to Apply Below

Location:

Belfast United Kingdom

Thales is a global technology leader with more than 83000 employees on five continents. With over 7500 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 Environmental Test Engineer
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.

What the role has to offer

  • 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

Our Opportunity

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 youll 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 youll 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. Youll 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.

Were 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.

What we offer you

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 hours/year (pro rata)

  • 24 hours volunteering paid for

  • Pension scheme

  • Life cover

  • 24/7 Employee Assistance Program and access to mental wellbeing app

  • Employee discount shopping schemes on major brands and retailers

  • Gym membership discounts

Main Responsibilities

  • Lead the planning and delivery of complex trials and test programmes collaborating with project teams customers and stakeholders to ensure successful execution across current and future defence projects

  • Own end-to-end test and trial activities from developing test plans and securing technical inputs through to conducting trials analysing results and producing high-quality technical reports

  • Operate at the forefront of missile systems testing preparing integrating and validating missiles and associated equipment for ground and flight trials including support for customer practice firings

  • Deliver hands-on environmental and qualification testing conducting climatic shock vibration structural and environmental assessments while fault-finding and operating specialist test equipment and instrumentation

  • Work closely with customers suppliers and multidisciplinary engineering teams attending project reviews providing technical support and training and contributing to the design and development of bespoke test and trials solutions

  • Take ownership of work packages…

Position Requirements
10+ Years work experience
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