A company specialising in designing and manufacturing prefabricated buildings is seeking a Business Development Manager to expand the company s footprint within US and UK defence markets and related sectors. The Business Development Manager will need to either have a strong military background or have proven experience in acquiring new business in the defence / security sector. In addition, the Business Development Manager will excellent communication, negotiation and presentation skills, and have willingness to travel frequently across UK and EU. Applications from ex-military personnel are strongly encouraged Key Responsibilities: Develop and execute a business development strategy targeting UK, US, and European defence organisations. Build and maintain strong relationships with defence procurement bodies, primes, integrators, and security agencies. Identify opportunities aligned to modular/prefabricated data centres, secure enclosures, SCIFs, and security services. Lead bid and tender pursuits, working with internal teams to shape winning proposals. Represent the company at defence trade events, briefings, and site visits (UK and EU). Provide market intelligence on defence frameworks, procurement pathways, and competitor activity. Collaborate with technical teams to ensure customer requirements are translated into compliant solutions. Knowledge, skills and qualifications: Essential: Proven experience within the defence sector in business development/sales, or have