Systems Engineer - IAS

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.

Systems Engineer - IAS

Location:

based in Belfast, minimum 3 days/ week in office (hybrid)
Other: permanent, full-time with minimal domestic travel

Ready to help develop the technologies that make tomorrow possible? Join a world-class team of innovators delivering advanced solutions that improve lives, protect communities, and keep people safe.

What the role has to offer

Work on cutting-edge defence technology that protects people, supports critical missions, and shapes the future of air defence capabilities

Influence the full engineering lifecycle, from concept and requirements through to integration, testing, and delivery of operational systems

Develop your career alongside industry-leading experts, with opportunities for professional accreditation, continuous learning, and progression

Our Opportunity At Thales IAS UK, you'll help develop the next generation of defence technologies that protect people, safeguard critical assets, and support mission success around the world. As a Systems Engineer, you'll join a high-performing multidisciplinary team at the forefront of Fire Control and Air Defence System development, turning complex customer challenges into innovative, mission-critical solutions. Working across the full systems engineering lifecycle, you'll play a key role in defining requirements, shaping system architectures, conducting analysis and modelling, and supporting integration, testing, and verification activities.

This is an opportunity to work on cutting-edge technology, tackle complex engineering challenges, and see your contribution directly influence world-class defence capabilities.

We're looking for a motivated Systems Engineer who enjoys solving complex problems, working collaboratively across disciplines, and taking ownership of delivery. You'll have experience in at least one stage of the systems engineering lifecycle, from concept and design through to integration, delivery, support, and disposal, along with the curiosity and drive to broaden your expertise. With some foundation level industry experience, strong critical thinking skills, and a passion for innovation will enable you to make a real impact while cross-fertilising your skills and learning from specialists across the wider engineering community.

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 youWe 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 13:0028 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 Capture and manage customer, user, and business requirements, ensuring a clear understanding of operational needs and how products will be deployed and used Support system architecture and design development, working with multi-disciplinary teams to define system architectures, interfaces, behaviours, and flow-down requirements

Develop and optimise system solutions through trade studies, technical analysis, modelling, and prototyping to achieve performance, cost, and operational objectives

Plan, coordinate, and participate in verification and…