Key Account Executive

About Sine Engineering Sine Engineering builds the technology behind reliable drone autonomy, delivering communication, navigation, and control systems that enable coordinated multi-drone operations. More than 200 UAV manufacturers rely on our solutions, and our technology powers many of the interceptor operations active today. Through our dual-use platform, we support civilian innovation while helping democratic nations strengthen their technological advantage. Any drone. Any scale. Anywhere. Resilient communication, navigation, and coordination built for the age of autonomy. Our products have already proven their effectiveness in real combat conditions in Ukraine. Responsibilities Build and expand Sine Engineering's customer and partner network across Germany. Identify, engage, and develop strategic accounts across the defense, aerospace, UAV manufacturing, systems integration, robotics, electronics, telecommunications, RF, autonomy, and other related technology sectors. Own the full sales cycle, including market mapping, prospecting, qualification, discovery, technical evaluation, proposal development, negotiation, closing, and long-term account growth. Develop relationships with OEMs, system integrators, defense primes, technology partners, and relevant government-affiliated stakeholders. Build direct relationships with senior executives and C-level decision-makers while developing strong engagement across engineering, program management, and procurement functions. Position Sine Engineering effectively before formal procurement and tender processes begin. Lead customer discussions related to communication modules, GNSS-denied navigation systems, video links, embedded autonomy software, and integration opportunities. Coordinate technical evaluations, pilot projects, demonstrations, and integration discussions in collaboration with product and engineering teams. Prepare commercial proposals, pricing structures, contract documentation, and partnership models. Lead commercial negotiations, including pricing, volume commitments, long-term agreements, and commercial frameworks. Maintain high standards of CRM management, pipeline tracking, revenue forecasting, and account planning in line with European business operations. Provide market intelligence regarding German defense procurement, competitors, customer requirements, funding priorities, and partnership opportunities. Represent Sine Engineering at industry events, trade shows, conferences, and customer meetings across Germany and Europe. Help establish scalable and repeatable sales processes for the German market and contribute to future team growth. Work closely with the Managing Director Germany to ensure commercial account ownership and local market representation remain aligned and complementary. Required Qualifications 5+ years of experience in B2B sales, business development, strategic account management, or partnerships within a complex technical environment. Proven track record of manag