Support Qpu Engineer - Technical Account Manager H/F Quandela
- Bruyères-le-Châtel - 91
- CDI
- Télétravail partiel
- Bac +2
- Secteur informatique • ESN
Les missions du poste
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).
In just a few years, we've reached major milestones:
- Belenos, our 12-qubit QPU, 4,000× more powerful than its predecessor, set for installation at TGCC in 2025.
- A published 2024-2030 roadmap: first logical qubits by 2025, interconnected quantum systems by 2028, fault-tolerant computing by 2030
Until now, our quantum computers have been operated directly from our HQ in Massy, or accessed remotely via the cloud by academic and industrial partners. The next step is different.
Lucy, a 12-qubit photonic QPU delivered with EuroQCS-France (GENCI & CEA), will be hosted at CEA's Très Grand Centre de Calcul (TGCC), coupled with the Joliot-Curie supercomputer, and operated fullyoffline. No remote factory access, no back-office monitoring: reliability, integration, and local support become mission-critical.
Remote access to a 6-qubit system is already available today. Lucy's full on-site deployment at TGCC is expected in 2025, marking a milestone in Europe's hybrid HPC-Quantum roadmap.
Why this role matters ?
We are building a dedicated support cell to accompany Lucy's deployment.
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.
You'll be the person researchers and TGCC teams rely on when uptime and stability are on the line, when hybrid HPC-Quantum workloads must be synchronized, or when the QPU itself needs calibration and monitoring.
More than troubleshooting, you'll help design the practices, monitoring, and coordination that will define how Europe's researchers engage with Lucy - and with future QPUs to come.
Le profil recherché
What we offer :
Salary range: €50-65k, depending on background and autonomy.
- €50-55k: solid HPC/infra engineer ready to grow into QPU.
- €55-60k: autonomous on HPC monitoring + user enablement.
- €60-65k: senior profile, able to coordinate and step into Technical Account Manager scope.
- Profit-sharing & company savings plan.
- 100% health coverage (Alan), Swile meal vouchers, transport/mobility support.
- Hybrid/flexible work (TGCC + Massy).
- Daily exposure to 150+ colleagues, 31+ nationalities, including top scientists.
Why join ?
- Be part of Lucy's deployment, the first large-scale photonic QPU in Europe.
- Work at the intersection of quantum, HPC, and national infrastructure.
- Collaborate directly with CEA, GENCI, and top researchers.
- Grow from support into coordination and technical account management.
- Contribute to Europe's quantum roadmap - with impact today, and vision to 2030 and beyond.
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
What will you do:
Your mission covers the full QPU lifecycle: from daily operations and maintenance, to user support, performance tracking, and external interface.
- Operate the QPU: monitor cryogeny, detectors, control layers, and HPC integration to secure machine stability and SLA compliance. This is the foundation, keeping the system running smoothly so researchers can trust the hardware.
- Support users: manage access and execution tickets, onboard new researchers, deliver training, and maintain documentation. The goal is to make users autonomous while ensuring efficient use of the QPU.
- Maintain systems: install, patch, and upgrade QPU (related software and tools) and coordinate with Quandela factory when deeper hardware or system-level interventions are required. Reliability depends on continuous upkeep !
- Improve performance: develop monitoring scripts and dashboards (Python, ETL-style) to anticipate failures, detect anomalies, and investigate incidents. This means not only fixing problems but building proactive safeguards.
- Interface & report: act as SPOC with TGCC/HLST, join weekly reviews, ensure compliance with reporting standards, and secure operational continuity.
Evolution over time: from hands-on delivery to proactive coordination - aligning stakeholders, defining best practices, and stepping into a Technical Account Manager role to anticipate needs and influence future deployments.
On-site presence :
- 3+ days/week at TGCC (Bruyères-le-Châtel, Essonne), sometimes full-time (5/5) during critical phases.
- Hybrid possible the rest of the time (Massy/Paris).
- On-call duties (astreintes) may be part of the role - details to be confirmed with HLST procedures.
How you'll grow :
- 0-3 months: onboard on TGCC/HPC workflows, handle standard QPU tickets, deliver first documentation.
- 3-6 months: trusted SPOC for GENCI/CEA, ensure machine reliability, identify recurring issues, propose fixes.
- 6-12 months: step into coordination - align stakeholders, anticipate upgrades, structure KPIs, and drive proactive enablement.
- Longer term: evolve into a Technical Account Manager - becoming the go-to person for QPU operations and future deployments, linking clients with R&D/Product, and contributing to next-gen roadmaps.
Profile we value :
Must-have
- Advanced Python (monitoring scripts, data analysis, ETL workflows).
- Solid HPC/Linux background (monitoring, integration, troubleshooting).
- Experience with infra monitoring (cryogeny, sensors, system he
Bienvenue chez Quandela
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.
Publiée le 05/09/2025 - Réf : 7d6c4814-9e29-45ec-b507-a51edd139efe
Support Qpu Engineer - Technical Account Manager H/F
- Bruyères-le-Châtel - 91
- CDI
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