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Senior Systems Engineer

Thales
📍 Crawley 📅 Posted May 2, 2026
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About this role

Location: Crawley, 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 Systems Engineer
Crawley - Hybrid

Thales Intelligence, Surveillance and Reconnaissance (ISR) UK is a principal supplier of Electronic Warfare (EW), Radar and Uncrewed Aerial Systems (UAS) equipment to the UK armed forces, as well as an exporter of these capabilities worldwide.

We are recruiting for a Senior Systems Engineer to work on projects covering next generation Electronic Warfare (EW), Radar or UAS solutions. This Systems Engineer role performs a subset of all the engineering activities required to develop a solution/product whilst achieving customer satisfaction of the delivered solution/ product.  This role requires a Systems Engineer with knowledge and experience of the full Systems Engineering design lifecycle.

Key responsibilities include:

• Demonstration that the solution satisfies the overall approved operational needs set out by the customer.
• Formalisation and management of requirements through DOORS.
• Assembly of the solution elements in a logical and controlled manner to evaluate design, behaviour, interactions and performance to confirm that the design meets requirements.
• Formalisation of the specifications and the engineering plans used to develop the solution.
• Support and undertake IVVQ activities.
• Trade-off analysis, modelling and simulation.
• SE and IVVQ related documentation.
• The Systems Engineer may contribute towards the Systems Architecture and/or Systems Engineering Management

What are we looking for:

• Minimum of a Bachelor Degree (BEng, BSc) in a Numerate, Scientific or Engineering subject or Higher Education/equivalent training and experience.

• An understanding of System Engineering and System Engineering Processes and Practices including:
• Proven working experience in requirements management using tools such as DOORS or Polarion.
• Proven experience working in and/or leading a team undergoing Integration, Verification, Validation and Qualification (IVVQ) of a solution/product
• Detailed working knowledge of the engineering lifecycle, from concept design, requirements capture and management, system and subsystem design, system integration, through to test strategies, acceptance and design update.

• An ability to work with combinations of technologies, to integrate and verify them in a logical and structured way into a system in order to fully satisfy a Customer’s requirement.
• Able to develop and establish collaborative ways of working with multiple stakeholders and disciplines to establish a system-centric way of working.
• Excellent communications skills, both verbally and written, with the ability to present and explain technical and complex problems, tailored appropriately for the audience.
• A team player with a “can-do” attitude that performs effectively in a multi-disciplinary team environment.

Experience Desirable

• Model Based Systems Engineering (MBSE) methods and tools.
• Architecture Frameworks (MODAF, DODAF, TOGAF etc.)
• Product line Engineering
• Electronic Warfare, Radar or telecommunications domain.

Security Clearance Requirement:

Due to the nature of the work that we do at Thales, many of our roles are subject to security restrictions.  This role requires Security Clearance (SC). It would be advantageous if currently held, however, if not currently held, it is a requirement that the successful applicant undergo, achieve, and maintain SC Clearance prior to commencing employment.  Please visit the UKSV website for further guidance.

To be eligible for full SC, you generally need to have resided in the UK for the last 5 years.  In some circumstances, a minimum of 3 years’ residence in the UK over the last 5 years may be accepted, with additional overseas checks.

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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!

This listing was aggregated by Perik.ai from Thales’s public job board. Click the button above to view the full job description and apply directly.
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