Be part of a company at the forefront of defence electronics manufacturing Work in a collaborative, innovation-driven environment with a passionate team About Our Client Surface Technology International (STI) is a leading provider of electronics design and manufacturing services, specialising in high-reliability applications for the defence, aerospace and security sectors. With a heritage of over 30 years, STI is trusted by global customers to deliver quality, innovation, and excellence. Their capabilities span the entire product lifecycle - from design and prototyping to full-scale production and logistics - making them a true partner in mission-critical manufacturing. Job Description We are seeking a dynamic and experienced Business Development Manager to spearhead growth in the defence sector, with a particular focus on engaging and expanding partnerships with major prime contractors. This is a strategic role, integral to STI''s vision of becoming a key partner in the UK and international defence supply chain. Key Responsibilities: Identify, engage, and secure new business opportunities within the defence sector, particularly with Tier 1 defence primes and key integrators. Develop and execute a targeted business development strategy to support STI''s growth objectives in defence. Build and maintain strong relationships with procurement, engineering, and program teams at target accounts. Drive early engagement on new programs, positioning STI as a trusted manufacturing p