At

LuxQuanta

, we are pioneering the Quantum Communications industry with quantum physics-based security solutions for major telecom operators globally. As we accelerate our international expansion, we are looking for a high-energy

Senior Pre-Sales Engineer

to drive technical sales with Tier-1 carriers and wholesale operators.

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 optical network solutions, and close B2B deals while coordinating R&D;, Product, and Operations. With your true Startup DNA, you bring a hands-on, highly versátil mindset, ready to step into adjacent areas whenever needed to ensure smooth project success. Main Tasks & Responsibilities

International Presales Leadership:

Drive technical presales, solution architecture, and RFP/RFI responses for international carriers and wholesale operators. General Client Engagement:

Lead technical pitch sessions, product demonstrations, and PoCs with C-level stakeholders and network directors worldwide. Optical Network Architecture:

Design tailored quantum-encrypted optical proposals over existing fiber networks (DWDM, OTN, ROADM).



Cross-Functional Alignment:

Work hand-in-hand with internal R&D;, Product, and Sales teams to deliver winning technical proposals. Field Support & Travel:

Act as our trusted technical advisor on-site with international clients and industry congresses. Degree in Telecommunications, Electrical Engineering, or related discipline. 7–10+ years

of experience as a Pre-Sales Engineer, Solution Architect, or Technical Account Manager in B2B Telecoms. Solid technical foundation in

Optical Transport, DWDM, OTN, ROADM, and Fiber Optics

. Strong track record working with

Carriers, Operators, Wholesale, or Hyperscalers

. Fluent in both English AND German

(C1/Negotiation level is required for both languages) Willingness to travel internationally for key client engagements. Flexibility:

100% Remote position

(with travel as required by clients/events). Perks & Culture:

flexible working hours, and real growth opportunities in a pioneering DeepTech scale-up. We are committed to building a diverse and inclusive workplace where every voice contributes to solving genuinely hard problems. #J-18808-Ljbffr

📌 Senior Pre-sales engineer (Barcelona)
🏢 LuxQuanta
📍 Barcelona