
Quandela, founded in 2017, is a European leader in full-stack photonic quantum computing, developing hardware, middleware, and software for industrial applications such as energy, cybersecurity, and finance. The company specializes in modular, scalable, energy-efficient photonic quantum computers accessible via cloud and on-premises, featuring its proprietary eDelight single-photon source technology. Key products include the MosaiQ quantum computing platform, Perceval open-source quantum programming framework, Prometheus single-photon source, and Quandela Cloud platform. Quandela supports quantum transformation through consulting and acceleration programs, serving over 10 corporate clients with 4 deployed quantum computers and 1433 cloud users. The company is advancing quantum machine learning and quantum AI integration, with significant partnerships and a roadmap targeting fault-tolerant quantum computing by 2030.

Quandela, founded in 2017, is a European leader in full-stack photonic quantum computing, developing hardware, middleware, and software for industrial applications such as energy, cybersecurity, and finance. The company specializes in modular, scalable, energy-efficient photonic quantum computers accessible via cloud and on-premises, featuring its proprietary eDelight single-photon source technology. Key products include the MosaiQ quantum computing platform, Perceval open-source quantum programming framework, Prometheus single-photon source, and Quandela Cloud platform. Quandela supports quantum transformation through consulting and acceleration programs, serving over 10 corporate clients with 4 deployed quantum computers and 1433 cloud users. The company is advancing quantum machine learning and quantum AI integration, with significant partnerships and a roadmap targeting fault-tolerant quantum computing by 2030.
About Quandela
Quandela is a French deeptech spin-off from CNRS, building Europe's first general-purpose photonic quantum computers.
We deliver across the full stack - from single-photon sources and photonic chips to simulation libraries (Perceval), programming platforms (Merlin), and cloud access (Quandela Cloud).
Lucy, a 12-qubit photonic quantum computer developed under the EuroQCS-France / EuroHPC programme, will soon be hosted on-site at CEA's TGCC in Bruyères-le-Châtel and coupled directly with the Joliot-Curie supercomputer.
In this hybrid HPC-quantum setup, there is no remote factory access and no standard back-office monitoring.
Everything runs locally ; making integration, on-site operations, and system reliability absolutely critical.
Why this role matters?
We are building a dedicated support cell to accompany Lucy's deployment .
Article : Genci x Quandela
Lucy
This is not "classic" support. It's about ensuring the world's first large-scale photonic QPU integrated with HPC runs reliably, day after day .
What is a QPU (Quantum Processing Unit) ?
Your role covers monitoring, documentation, reporting, and user enablement , while escalating deeper hardware issues to specialists when needed.
Beyond troubleshooting, you'll contribute to the practices and metrics that define how researchers interact with Lucy.
Requirements What will you do:
Your mission covers the full QPU lifecycle: from daily operations and maintenance, to user support, performance tracking, and external interface.
*NB: You will not directly repair or calibrate optics/photonics modules yourself. Your role is to interact with these systems through monitoring and predefined tests , verify that modules are functioning correctly, and escalate issues with clear documentation to the dedicated specialists.
⚠️On-site presence ⚠️ :
5 days/week at TGCC (Bruyères-le-Châtel, Essonne)
(Some flexibility may be possible later, but the role is primarily on-site given its operational nature)
On-call duties (astreintes) may be part of the role — details to be confirmed with HLST procedures.
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How you'll grow :
Longer term: Potential evolution toward a Technical Account Manager role, bridging clients, HPC teams, and R&D/Product for future quantum deployments.
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Profile we value :
Must-have
Nice to have (can grow)
Bonus
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Academic background : For this role, we are looking for a Master's degree or engineering school background in physics, applied mathematics, computer science, or related fields. Familiarity with instrumentation (optics, electronics, HPC environments) can be a plus, but what matters most is the ability to navigate complex systems and turn technical insights into reliable operations.
Backgrounds that could fit / We particularly value experience from fields (3-5y) :
Benefits What we offer :
Salary range: €45-60k , depending on background and autonomy.
On top of base salary: annual profit-sharing, company savings plan, 100% health coverage (Alan), 50% transport reimbursement or mobility bonus, Swile meal vouchers, and access to Gymlib.
Why join ?
A final word !
At Quandela, support is not a back-office function. It is where science meets reality.
As Support Engineer today — and Technical Account Manager tomorrow — you'll be the bridge between pioneering researchers and a working quantum machine. The reliability you ensure, and the insights you provide, will define how Lucy and future QPUs serve Europe's scientific community.
So... if you're ready to make Europe's first offline QPU your mission, let's talk 😁