Join us in our journey into a quantum-safe world

We are a vibrant start-up with a multidisciplinary team from diverse backgrounds and nationalities.

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Our team has decades of experience in research and development, and for that reason, we understand better than anyone the power of diversity and talent development.

We believe that only by including new and valuable perspectives a company like ours can remain relevant and innovative.

 

And only by nurturing and empowering the unique talent of each of our employees can we truly make an impact in a fast-paced and highly competitive environment such as the quantum communication industry.

Careers

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Integrated Photonic Circuit (PIC) Engineer

Are you passionate about advancing photonic technologies? Luxquanta is seeking a highly skilled PIC Engineer to drive our innovations in photonic integrated circuits.

 

When you join Luxquanta, you will:

 

  • Engage in R&D focused on photonic integration for quantum key distribution.
  • Participate in leading European projects within the field.
  • Collaborate with software, hardware, and production teams to develop cutting-edge products.
  • Contribute to technical decisions that shape our product roadmap.
  • Conduct hands-on characterization of PICs and supervise these processes.
  • Play a key role in defining and executing activities related to PIC packaging, system manufacturing, testing, and product development.

 

Qualifications/Experience:

 

  • Experience in photonic integrated circuits, with work in areas such as design, characterization, fabrication processes, or packaging, and a broad understanding of the different platforms and the steps involved in developing PIC-based products.
  • Industrial experience in the development of PIC-based products is desirable.
  • High proficiency in English (minimum fluent B2/C1 level).
  • Highly proactive, with strong analytical and communication skills.
  • Engineering degree in Telecommunications, Microelectronics/RF, Optics/Photonics, Physics, or a related field.

 

What We Offer:

 

  • Competitive salary, private health insurance, and ticket guarderia
  • Lunch at the office for less than 2€!
  • Flexible working hours and hybrid work model.
  • Short Fridays during the Summer.
  • Opportunities for professional development and career growth in a vibrant multicultural work environment in Barcelona.

 

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Job type
Full-time, Presential
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Technical Support Engineer

As a Technical Support Engineer, you’ll be the direct technical backbone for our global customer base. Taking full ownership of support operations, you will bridge customer needs with our internal engineering excellence — troubleshooting complex hardware/software system environments, driving incident resolutions, and ensuring our groundbreaking quantum systems deliver flawless reliability in the field.

 

When you join Luxquanta, you will:

 

  • Act as the primary technical point of contact, managing support cases end-to-end while maintaining trust and proactive communication.
  • Diagnose, troubleshoot, and resolve technical issues across products, environments, and systems by analyzing logs and system behaviors.
  • Manage case prioritization under SLAs, handling complex incidents and coordinating with senior engineers for high-impact escalations.
  • Partner closely with Account Managers, Product, and R&D teams to share customer feedback and resolve deep product issues.
  • Maintain precise documentation, build troubleshooting procedures, perform root-cause analysis, and recommend preventive measures.

 

Qualifications/Experience:

 

  • 5+ years of experience as a Technical Support, Application Support Engineer, or similar role
  • Bachelor’s degree in Computer Science, IT, Engineering, or equivalent practical experience
  • Full professional proficiency in English and Spanish
  • Availability to travel when required
  • Hands-on experience with technical troubleshooting, log analysis, and issue escalation

 

What We Offer:

 

  • Competitive salary, private health insurance, and ticket guardería.
  • Lunch at the office for less than 2€!
  • Flexible working hours
  • On-site onboarding in Barcelona with option for a hybrid model over time.
  • Short Fridays during the summer.
  • Real opportunities for professional growth in a vibrant, multicultural team in Barcelona.
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Job type
Full-time, Presential
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Pre-Sales Engineer

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 B2B deals while coordinating R&D, Product, and Operations. With your true Startup DNA, you bring a hands-on, highly flexible mindset, ready to step into adjacent areas whenever needed to ensure smooth transitions and project success.

 

When you join Luxquanta, you will:

 

  • Drive technical presales, solution design, and B2B telecom deal closures.
  • Conduct high-level technical presentations, demos, and on-site client visits globally.
  • Coordinate complex presales workflows, aligning internal R&D, Product, and Operations teams.
  • Architect tailored solutions for enterprise/carrier clients (high-level fiber optics, DWDM, OTN, wholesale/reseller models).
  • Lead commercial negotiations, RFP/RFI responses, SOWs, and feasibility studies.
  • Apply field engineering insights and support cross-functional teams on ad-hoc priorities.

 

Qualifications/Experience:

 

  • 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).
  • Frequent travel required.

 

What We Offer:

 

  • Competitive salary
  • Private health insurance & ticket guardería
  • Lunch at the office for less than 2€!
  • Flexible working hours & hybrid work model (3 days office / 2 days remote)
  • Short Fridays in summer & real growth opportunities in a vibrant BCN team

Read more
Job type
Full-time, Hybrid
Apply

Didn’t find your position?

Let us know anyway.

We are always looking for people passionate about the quantum world. Send us an email with your CV and tell us what you would like to do at [email protected]

Why Luxquanta

Quantum Technologies

Extend secure communication beyond metropolitan distances while keeping data integrity intact.

A place to grow

Extend secure communication beyond metropolitan distances while keeping data integrity intact.

Challenging projects

Extend secure communication beyond metropolitan distances while keeping data integrity intact.

Culture of respect

Extend secure communication beyond metropolitan distances while keeping data integrity intact.

Learn more about us