
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.
Algorithm Engineer (Radar and Electronic Warfare)
Crawley – Hybrid (Relocation support can be provided)
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’re growing and we are looking for an ambitious Algorithm Engineer to join us on the journey. Algorithm Engineers design, implement and improve algorithms used in critical systems such as Radars and Digital Radar Electronic Support Measures (RESM). We are looking for a highly qualified STEM individual who can take a high-level technical need and justify innovative solutions by theory and/or experiment.
Key Responsibilities:
As an Algorithm Engineer, you will:
Experience and skillset required of the successful candidate:
Desirable but not essential:
Security Clearance statement
Due to the nature of the work that we do at Thales, many of our roles are subject to security restrictions. This role requires you to be a sole British National from birth and achieve Security Clearance (SC) without any caveats. 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- United Kingdom Security Vetting - GOV.UK (www.gov.uk)
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.
Your Career At Thales UK
Future opportunities will allow you to discover other domains or sites. You will be able to evolve and grow your Competencies in different areas:
What we can offer
We are committed to giving you opportunities to be your best. We believe in embracing the passion and potential of our people, and to achieve this we offer market leading training, development and experiences, along with the opportunity to be mentored and coached by some of the smartest minds in the industry. We hire from within as our first priority, so you’ll have a myriad of opportunities within our diverse, global organisation.
Our packages will include significant bonus, a strong pension contribute, private healthcare, development focused targets and relocation support can be provided if required along with a variety of learning, development and career enhancement opportunities. Further support can be provided towards academic and membership attainments.
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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!

Thales (Euronext Paris: HO) is a global leader in advanced technologies for the Defence, Aerospace, and Cyber & Digital sectors. Its portfolio of innovative products and services addresses several major challenges: sovereignty, security, sustainability and inclusion.
The Group invests more than €4 billion per year in Research & Development in key areas, particularly for critical environments, such as Artificial Intelligence, cybersecurity, quantum and cloud technologies.
Thales has more than 83,000 employees in 68 countries. In 2024, the Group generated sales of €20.6 billion.