Quandela stands as a global leader in quantum computing, driven by groundbreaking technology and a strategic vision for scaling quantum solutions. The company’s unique ability to offer both hardware and software solutions, along with its commitment to build energy efficient quantum processing units that scale, positions it to play a key role in the next wave of innovation, and in many strategic and sovereign industrial sectors. With a team of more than 140 people, we develop our own hardware and software stack, from semiconductor quantum emitters and photonic processors to quantum control systems and quantum algorithms. Our ambition is to build large-scale fault-tolerant quantum computers capable of solving problems beyond the reach of classical computation using Quandela's cutting-edge quantum dot technology. Achieving this vision requires not only advances in photonic quantum computing, but also the development of scalable spin-photon interfaces, distributed entanglement capabilities and future SPOQC (Spin-Optical Quantum Computing) architectures that will enable modular and fault-tolerant quantum systems.Join Us at the Forefront of Quantum Computing Innovation 🚀 About this position:Join Quandela’s Source Production team to work on the fiber pigtailing of single-photon sources.The role focuses on developing, improving and operating highly precise fiber coupling methods for photonic quantum devices.The role is part of the Source Production team, which currently includes 11 people across fabrication, fiber pigtailing and optical characterization. The role is part of the pigtail team, currently composed of one person, and works in close interaction with the fabrication and characterization teams.The objective is to improve the reliability, reproducibility and productivity of the pigtailing process, from prototype development to production-ready methods.Key responsibilitiesPerform high-precision fiber coupling between single-mode fibers and individual micropillars, with alignment precision below 100 nm Work on fiber preparation and assembly steps, including:fiber cleavingfiber gluingfiber mounting with ferrules and holdersfabrication of structures on fiber tipsanti-reflection coating treatmentDevelop and improve methods to evaluate coupling and alignment quality through clear metricsCool down pigtailed sources and support the validation of the assembled devicesPerform optical characterization of quantum emitters using quantum optics techniques, including single-photon detectionContribute to the development of reliable and reproducible production proceduresWrite systematic reports and share production feedback with other teamsWork closely with the fabrication and optical characterization teamsContribute to productivity improvements and risk mitigation in the pigtailing processSimulation experience is a plus RequirementsDesired profileRequiredPhD or engineering degree in optics, photonics, optomechanics, experimental physics or a related fieldStrong hands-on experience in optics and optical alignmentExperience with fiber coupling, fiber handling or fiber-based optical systemsGood understanding of photonic structures and optical componentsExperience with cryogenic systems or low-temperature optical setupsAbility to work with high precision and follow established proceduresGood communication and reporting skillsGood level of EnglishNice to haveExperience with quantum emitters or single-photon sourcesSimulation experience is a plus Good balance between hands-on and simulation, ideally around 70% hands-on / 30% simulationSoft skillsVery precise and rigorousStrong respect for proceduresCreative when developing new methodsReliable and methodicalGood risk mitigation mindsetTeam playerHands-on and practicalBenefitsCompetitive salary, flexible based on your experience Profit-sharing & company savings plan100% health coverage (Alan)50% transport reimbursement or sustainable mobility bonusMeal vouchers (Swile), Gymlib fitness supportChildcare assistance & referral bonuses (€1,000–€2,000)What we offer: A meaningful role with real ownership, from day oneA team eager to collaborate and grow with youDaily exposure to the entire quantum stack — from high-level APIs to low-level firmware, and everything in between. Process Talent Acquisition Interview (30' - 45') Hiring Manager Interview (45') Use Case (a live use case or one to be prepared at home and presented afterward) Meeting with the teams 2 reference check Offer (This process is provided for guidance only and may evolve depending on the roles)At Quandela, we believe that the strength of our team is the plurality of experiences, perspectives, and journeys. We are committed to building a respectful, inclusive, and welcoming work environment. All applications are welcome.
Quandela stands as a global leader in quantum computing, driven by groundbreaking technology and a strategic vision for scaling quantum solutions. The company’s unique ability to offer both hardware and software solutions, along with its commitment to build energy efficient quantum processing units that scale, positions it to play a key role in the next wave of innovation, and in many strategic and sovereign industrial sectors.
With a team of more than 140 people, we develop our own hardware and software stack, from semiconductor quantum emitters and photonic processors to quantum control systems and quantum algorithms.
Our ambition is to build large-scale fault-tolerant quantum computers capable of solving problems beyond the reach of classical computation using Quandela's cutting-edge quantum dot technology.
Achieving this vision requires not only advances in photonic quantum computing, but also the development of scalable spin-photon interfaces, distributed entanglement capabilities and future SPOQC (Spin-Optical Quantum Computing) architectures that will enable modular and fault-tolerant quantum systems.
Join Us at the Forefront of Quantum Computing Innovation 🚀
About this position:
Join Quandela’s Source Production team to work on the fiber pigtailing of single-photon sources.
The role focuses on developing, improving and operating highly precise fiber coupling methods for photonic quantum devices.
The role is part of the Source Production team, which currently includes 11 people across fabrication, fiber pigtailing and optical characterization. The role is part of the pigtail team, currently composed of one person, and works in close interaction with the fabrication and characterization teams.
The objective is to improve the reliability, reproducibility and productivity of the pigtailing process, from prototype development to production-ready methods.
Key responsibilities
- Perform high-precision fiber coupling between single-mode fibers and individual micropillars, with alignment precision below 100 nm
- Work on fiber preparation and assembly steps, including:
- fiber cleaving
- fiber gluing
- fiber mounting with ferrules and holders
- fabrication of structures on fiber tips
- anti-reflection coating treatment
- Develop and improve methods to evaluate coupling and alignment quality through clear metrics
- Cool down pigtailed sources and support the validation of the assembled devices
- Perform optical characterization of quantum emitters using quantum optics techniques, including single-photon detection
- Contribute to the development of reliable and reproducible production procedures
- Write systematic reports and share production feedback with other teams
- Work closely with the fabrication and optical characterization teams
- Contribute to productivity improvements and risk mitigation in the pigtailing process
- Simulation experience is a plus
Requirements
Desired profile
Required
- PhD or engineering degree in optics, photonics, optomechanics, experimental physics or a related field
- Strong hands-on experience in optics and optical alignment
- Experience with fiber coupling, fiber handling or fiber-based optical systems
- Good understanding of photonic structures and optical components
- Experience with cryogenic systems or low-temperature optical setups
- Ability to work with high precision and follow established procedures
- Good communication and reporting skills
- Good level of English
Nice to have
- Experience with quantum emitters or single-photon sources
- Simulation experience is a plus
- Good balance between hands-on and simulation, ideally around 70% hands-on / 30% simulation
Soft skills
- Very precise and rigorous
- Strong respect for procedures
- Creative when developing new methods
- Reliable and methodical
- Good risk mitigation mindset
- Team player
- Hands-on and practical
Benefits
- Competitive salary, flexible based on your experience
- Profit-sharing & company savings plan
- 100% health coverage (Alan)
- 50% transport reimbursement or sustainable mobility bonus
- Meal vouchers (Swile), Gymlib fitness support
- Childcare assistance & referral bonuses (€1,000–€2,000)
What we offer:
- A meaningful role with real ownership, from day one
- A team eager to collaborate and grow with you
- Daily exposure to the entire quantum stack — from high-level APIs to low-level firmware, and everything in between.
Process
- Talent Acquisition Interview (30' - 45')
- Hiring Manager Interview (45')
- Use Case (a live use case or one to be prepared at home and presented afterward)
- Meeting with the teams
- 2 reference check
- Offer
(This process is provided for guidance only and may evolve depending on the roles)
At Quandela, we believe that the strength of our team is the plurality of experiences, perspectives, and journeys. We are committed to building a respectful, inclusive, and welcoming work environment. All applications are welcome.
Quandela is a European start up that provides photonic quantum computers that are modular, scalable, energy-efficient and accessible both on the cloud and on premise. Our team of 85 employees, specialises in the development of both software and hardware solutions for a variety of quantum applications. We offer a wide range of services, from developing the most efficient and brightest single photons sources, to creating algorithms for quantum computers and providing cloud quantum computing solutions. Quandela plays a pivotal role as a strategic partner in the quantum transformation of industrial sectors such as energy, finance, pharmaceuticals, and transportation. Furthermore, we are esteemed collaborators within the academic and research community.
Following a successful €50 million fundraising in 2023, we are now scaling up our commercial ventures alongside our ongoing research endeavors.
Quandela has been chosen to participate in the French Tech 2030 program, which aims to bolster French companies pioneering groundbreaking innovations.
Quandela is a European start up that provides photonic quantum computers that are modular, scalable, energy-efficient and accessible both on the cloud and on premise.
Our team of 85 employees, specialises in the development of both software and hardware solutions for a variety of quantum applications. We offer a wide range of services, from developing the most efficient and brightest single photons sources, to creating algorithms for quantum computers and providing cloud quantum computing solutions.
Quandela plays a pivotal role as a strategic partner in the quantum transformation of industrial sectors such as energy, finance, pharmaceuticals, and transportation. Furthermore, we are esteemed collaborators within the academic and research community.
- Following a successful €50 million fundraising in 2023, we are now scaling up our commercial ventures alongside our ongoing research endeavors.
- Quandela has been chosen to participate in the French Tech 2030 program, which aims to bolster French companies pioneering groundbreaking innovations.
