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Urgent! Quantum Optics Scientist - QPU Prototyping Job Opening In Massy – Now Hiring Quandela

Quantum Optics Scientist QPU Prototyping



Job description

About Quandela:

Quandela is a European scale-up that provides photonic quantum computers that are modular, scalable, energy-efficient, and accessible both on the cloud and on-premise.

Our team of 140 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 building the brightest single-photon sources, to designing algorithms for quantum computers, to providing cloud quantum computing access.

Quandela plays a pivotal role as a strategic partner in the quantum transformation of industrial sectors such as energy, finance, pharmaceuticals, and transportation.

We are also esteemed collaborators within the academic and research community

About your team:

You’ll join the QPU Prototyping team, part of QPU Integration.

Your team focuses on the development of next-generation optical quantum computing systems.

Their primary responsibility is designing and refining R&D QPUs, accessible through Quandela’s cloud platform.

The team develops modular components, adds new features, and improves QPU performance to align with Quandela’s long-term quantum computer architecture.


Why This Role Matters?

  • From ideas to hardware
    You turn hypotheses into prototypes, and prototypes into QPU modules that run.
  • Scaling the roadmap
    You bridge the gap from design to stable operation.

    Every improvement in loss, uptime, or fidelity takes us closer to 6 → 12 → 24+ qubit systems with higher fidelity.


    It also paves the way for next-generation QPUs, enabling feedforward, error correction, and ultimately universal fault-tolerant quantum computing.
  • Shaping the system
    Your experiments, ground them in science, set the standards — from error budgets to control strategies and design trade-offs across the stack.

Requirements

What will you do?

> Build & improve QPU modules:

  1. Prototype optical modules
    Design, assemble, align, measure, and stabilize complex free-space and fibered optical systems.
  2. Integrate into the QPU
    Bring modules online, debug, optimize, and validate against spec.

    Hand over with clear procedures and test plans.
  3. Improve performance
    Once integrated, track loss and drift, isolate noise sources, and implement fixes that hold — pushing qubit fidelity and system stability forward, while contributing to next-generation QPUs with new features.

> Tools & knowledge sharing:

  1. Code for the lab
    Develop pragmatic Python tools for acquisition, calibration, and analysis (scripts, utilities, quick plots) — tools your teammates actually reuse.

  2. Document & collaborate
    Work full-stack with peers (optics, electronics, semiconductors, software).

    Leave behind clear lab notes and protocols so others can run the system without you.

    ---

How You’ll Grow?

  • 0–3 months: own a bench; deliver your first doc pack (procedure + checklist + Python tools), complete a characterization.
  • 3–6 months: own one module from V0 to QPU integration; hit targets on loss/stability, standardize tests.
  • 6-12 months: own multiple modules or a QPU area, contribute to planning, and trade-offs (Quality/Cost/Schedule).
    --> Next steps ? mentor juniors, lead projects, step into Optics Lead.

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What We’re Looking For ?

*Must-Have:

  • Hands-on experimental optics: complex design, alignment, metrology.

  • Python for the lab: acquisition, calibration, analysis, plots (code that speeds up work).

  • Documentation discipline: Feedback, procedures, test protocols.

*Important (can grow here):

  • Basic electronics for the bench: safe operation, light soldering, DAQ, drivers.

  • Semiconductor awareness: (quantum-dot sources, couplings, packaging)

*Bonus:

  • Exposure to quantum optics (correlations/HOM), PICs, cryogenics, optimal control, or firmware/FPGA.

*Languages:

  • English professional level required.



    ---

Examples of backgrounds we value:
For this role, we’re looking for a PhD profile with proven experience in complex optical systems — someone who can master experimental design, alignment, and measurement, and turn that expertise into reliable hardware modules.

  • Experimental quantum/photonic optics scientist (PhD) eager to land hardware in a product.

  • Optical/laser systems scientist/engineer with robust bench skills and pragmatic Python.

  • Research-trained profile who has delivered lab modules into operational handover.

Benefits

Remuneration:

  • €57.5k gross — indicative entry for PhD + 1–2 years (operational on bench + Python + documentation).

  • €60–65k gross — PhD + 4–5 years (leading modules/projects, allocating resources, coordinating peers, shaping roadmap impact).

    Profit-sharing & company savings plan, 100% health coverage (Alan), Swile meal vouchers, transport/mobility support, Gymlib

And above all ...

Quandela is where rigor meets vision: where experiments evolve into machines, and machines into breakthroughs.
What you create doesn’t vanish after the test — it endures in quantum processors that deliver stable qubits and enable the next generation of applications.
 If you’re ready to do makes tomorrow’s quantum computing possible, one module at a time, in a pioneering deeptech environment, let’s speak 😊


Required Skill Profession

Computer Occupations



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