Location: Bristol, 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.
Business Growth UK
Location: Flexible UK with regular engagement across MOD, Army, DE&S and the wider Defence community
Closing date for applications: Friday 20th November 2026
Build relationships that create growth. Shape partnerships that matter.
At Thales, our most successful Key Account Managers are trusted relationship builders, strategic thinkers and commercially minded leaders who thrive in complex environments. They bring people together, build credibility through collaboration and create opportunities that deliver long-term value for both customers and the business.
We're looking for an experienced defence professional with either an established network across the UK Land domain or a military background, ideally with experience working alongside the British Army or wider Defence community. You'll have a natural ability to build trusted relationships, understand customer priorities and bring people together to achieve shared goals.
This is a highly visible role where you'll act as a key representative of Thales to strategic customers, developing lasting partnerships, identifying growth opportunities and helping align expertise from across the organisation to deliver exceptional customer outcomes.
As a Key Account Manager, you will develop and lead the strategy for strategically important customer accounts, creating long-term growth plans that align customer objectives with Thales' broad portfolio of capabilities.
You'll spend your time building meaningful relationships, understanding customer challenges and ambitions, uncovering opportunities and bringing together colleagues from across Thales to deliver value.
Success in this role will come from your ability to:
This role would suit someone who enjoys building relationships, connecting people and creating strategic influence through collaboration and credibility.
You'll likely bring:
We welcome candidates from a broad range of professional backgrounds, including:
You'll be supported to:
This is an opportunity to influence some of the UK's most important defence relationships while working at the forefront of national security, defence capability and innovation.
You'll have the freedom to shape strategy, build meaningful partnerships and bring together expertise from across Thales to solve complex customer challenges and create long-term value.
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 UK National 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. If approved by the MOD, a dual national from a Non-ITAR country may be considered. 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.
For further details of the evidence required to apply for security clearance please follow this link -
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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.