Key Account Executive

Sine Engineering; Deutschland; On-site; EUR 90,000 - 130,000; Full time

Job summary

Sine Engineering builds the technology behind reliable drone autonomy, delivering communication, navigation, and control systems used by more than 200 UAV manufacturers. Based in Munich, Sine Engineering seeks a senior sales leader to expand the German market, engage defense and aerospace customers, and drive long-term partnerships.

You will own the full sales cycle, from market mapping through proposal development, pricing, and contract negotiation, with frequent travel across Germany.

Qualifications

• 5+ years of B2B sales in a complex technology environment.
• Proven track record in full-cycle enterprise sales.
• Strong ability to navigate multi-stakeholder procurement processes.
• Technical aptitude to translate customer needs into business implications.
• Excellent negotiation and executive communication skills.
• Willingness to travel across Germany and Europe.

Responsibilities

• Build and expand customer and partner network across Germany.
• Own the full sales cycle, including market mapping, prospecting, qualification, discovery, and closing.
• Develop relationships with OEMs, system integrators, defense primes, and government stakeholders.
• Lead commercial negotiations and draft proposals and contracts.
• Maintain CRM, pipeline, and revenue forecasting for European operations.

Skills

B2B sales

Strategic accounts

Enterprise sales

Negotiation

Technical understanding

Relationship building

Cross-functional collaboration

Willingness to travel

German market knowledge

Job description

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. Experience in the defense, aerospace, UAV, robotics, telecommunications, RF, or deep-tech sectors.


• Proven track record of managing full-cycle sales processes with enterprise, industrial, defense, aerospace, or technology customers.


• Strong understanding of long sales cycles, multi-stakeholder procurement processes, and complex commercial negotiations.


• Ability to understand technical products and translate customer needs into clear business and technical requirements.


• Experience collaborating closely with engineering, product, operations, legal, and executive leadership teams.


• Excellent commercial judgment, negotiation skills, and executive-level communication abilities.


• Ability to work independently and proactively create opportunities rather than relying primarily on inbound leads.


• Strong sense of ownership and the ability to thrive in a fast-paced, scale-up environment.


• Ability to work effectively within a matrix organization, collaborating with both a functional sales manager and a local managing director.


• Based in Munich or willing to travel there regularly.


• Willingness to travel frequently across Germany, Ukraine, and Europe.


• Valid work authorization in Germany or the EU.

Nice to Have

• Experience building a market presence, territory, or sales function from an early stage.


• Experience working with international teams, particularly across Germany and Eastern Europe.


• Experience negotiating framework agreements and other long-term commercial partnerships.

Why Join Us?

If you're excited about building technology that shapes the future of drone autonomy and want your work to have a meaningful impact on defense and security, we'd love to hear from you.

If this role aligns with your experience and ambitions, don't hesitate to apply. We're looking for people who share our drive to push the boundaries of what's possible and deliver technologies that make a real-world difference.