Join LuxQuanta as a Field Service Engineer At LuxQuanta, we are pioneering the Quantum Communications industry with quantum physics-based security solutions. As we expand internationally, we're looking for a passionate Field Service Engineer to act as the face of LuxQuanta at customer premises, owning the end-to-end deployment and onboarding journey.

About the Role
As Field Service Engineer, you’ll bridge post-sale customer onboarding, site readiness, installation, and hands-on commissioning. You combine technical depth, strong ownership, and a customer-oriented mindset to ensure flawless deployments, resolve unexpected field issues autonomously, and turn every customer into a reference story. With your true Startup DNA, you bring a pragmatic, highly flexible mindset, ready to step into adjacent operational areas to ensure complete project success. End-to-End Onboarding & Deployment: Lead pre-installation planning, site surveys, and readiness requirements (rack space, power, optical infrastructure, and access procedures). ~ System Installation & SAT: Install, configure, and test LuxQuanta QKD systems at customer sites in Spain and abroad, validating optical link quality (OTDR, loss budgets) and executing Site Acceptance Tests (SAT). ~ Autonomous Troubleshooting:



Lead on-site and remote troubleshooting, escalating structured technical feedback to R&D; and Support teams to drive issues to closure. ~ Customer Advisory & Training: Conduct on-site knowledge transfer for customer operators and serve as a trusted technical voice across technical and management levels. ~ Document all interactions in CRM/ticketing systems, maintain installed-base records, and help improve deployment playbooks and manuals with R&D.; ~ Degree in Telecommunications, Electrical/Electronic Engineering, Computer Science, Physics (photonics), or IT. ~5–7+ years in customer-facing technical roles, including hands-on experience installing and commissioning telecom, networking, or optical equipment. ~ Spanish is also required. ~ Solid foundation in networking (TCP/IP, routing, switching, VLANs), Linux environments (SSH, CLI, scripting with Bash/Python), and fiber-optic handling (connectors, OTDR, power meters). ~ Familiarity with network security concepts (PKI, TLS, IPsec, firewalls) and monitoring protocols (SNMP, REST APIs) is highly valued. ~ Versátil

working hours
& Barcelona-based location ~ Short Fridays in summer & real growth opportunities in a vibrant team

📌 Field Training Engineer (Barcelona)
🏢 LuxQuanta
📍 Barcelona