We are hiring Join Lux Quanta as a Senior Pre-Sales Engineer At Lux Quanta, we are pioneering the Quantum Communications industry with quantum physics-based security solutions. As we expand internationally, we're looking for a passionate Senior Pre-Sales Engineer to help us lead the market across Europe and beyond.

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About the Role

As Senior Pre-Sales Engineer, you'll bridge customer needs, business goals, and internal technical execution. You are a tech-commercial powerhouse who can spark interest, design complex solutions, and close B2 B deals while coordinating R&D;, Product, and Operations. Main Tasks & Responsibilities Presales Leadership & Closing: Drive technical presales, solution design, and B2 B telecom deal closures. Customer Advisory & Mobility: Conduct high-level technical presentations, demos, and on-site client visits globally.

Project Orchestration: Coordinate complex presales workflows, aligning internal R&D;, Product, and Operations teams. Network Solution Design: Architect tailored solutions for enterprise/carrier clients (high-level fiber optics, DWDM, OTN, wholesale/reseller models).



RFPs & Proposals: Lead commercial negotiations, RFP/RFI responses, SOWs, and feasibility studies. Hands-On & Field Support: Apply field engineering insights and support cross-functional teams on ad-hoc priorities.

Degree in Telecommunications or Electrical Engineering (or similar). 7–10+ years in Telecom Pre-Sales, Solutions Architecture, or Technical Sales. Deep expertise in high-level fiber optics, optical networks (DWDM, OTN), carrier infrastructure, and wholesale/reselling. Proven closing ability, commercial negotiation skills, and cross-functional project leadership. Pragmatic, flexible, and ready to roll up your sleeves beyond standard presales tasks.

Fluent in English and Spanish (German is a strong plus). Versátil working hours & Remote within Spain if based outside Barcelona. xghoner Short Fridays in summer & real growth opportunities in a vibrant team We are committed to building a diverse and inclusive workplace where every voice contributes to solving genuinely hard problems. #Quantum Tech #Pre Sales #Sales Engineering #Telecom Jobs #Deep Tech #Barcelona Jobs #Hiring

📌 Senior Pre-sales Engineer (Arenas de Iguña)
🏢 LuxQuanta
📍 Arenas de Iguña