Senior quantum information scientist (error correction)

Join the Fault-Tolerant Quantum Computing (FTQC) team within Quandela’s Scalable Architecture division - where theory is developed in close collaboration with experimental and systems engineering teams to advance scalable photonic quantum computing.

As a senior Quantum Error Correction researcher, you will shape the development of our fault-tolerant quantum computing architecture.
Your insights will guide the evolution of our long-term roadmap and contribute to the robustness and scalability of Quandela’s cutting-edge hardware.

🌟 Why Join Quandela ?

Quandela is at the forefront of photonic quantum computing, combining deep scientific investigation with a strong engineering mindset.
Our R&D spans the full quantum computing stack—from quantum device fabrication to system-level control and quantum software.
In this role, you will contribute to key milestones for our FTQC roadmap, while collaborating with our in-house experts and our extended network of academic partners (INRIA Paris, LIP6 – Sorbonne Université, INRIA Saclay, Institut de Mathématiques de Bordeaux…).

You will join a team committed to delivering meaningful advances in quantum error correction - both in theory and in its implementation on real photonic systems.

🎯 What You’ll Do

You will lead the design and performance analysis of fault-tolerant protocols adapted to our spin-photon systems. Your contributions will support both near-term experiments and long-term system scaling.

Initial scope includes:

• Provide guidance on QEC codes: oversee the simulation and analysis of stabilizer, dynamical, and good qLDPC code families under realistic device constraints.
• Improve FTQC strategies: Develop fault-tolerant protocols suited to Quandela’s hardware and error model.
• Benchmark decoders: Design custom decoding methods and guide integration based on speed vs accuracy tradeoffs.

Collaborate across domains: Work closely with hardware and software teams to model errors, improve simulations, and design QEC experiments.

🌍 Research with a Scalable Purpose

This position offers a rare balance between scientific depth and tangible impact.

You will be part of an environment where rigorous theory, peer-reviewed publication, and international collaboration directly contribute to shaping a fault-tolerant quantum computing platform.
At Quandela, research is not only encouraged - it’s expected to shape real systems, guide prototypes, and influence long-term architectural decisions.

🎓 Ideal Profile

This position is well-suited for a scientist who combines deep theoretical training with a desire to see ideas translated into real, scalable platforms.

• PhD in Physics, Mathematics, Computer Science or a related field, with a specialisation in Quantum Error Correction.
• 3+ years of post-doctoral research experience, in academia or industry.
• Solid experience with simulation tools (e.g. STIM, decoder implementations).
• Track record of scientific publications in QEC/FTQC.
• Fluent in English (French is optional, not required).
• Familiarity with photonic architectures is appreciated; interest in experimental interaction is a plus.

🏢 Working Environment

Quandela is a deep-tech quantum company based in Paris-Saclay, with strong academic roots (CNRS/C2N) and a mission to develop large-scale quantum computers.

The R&D department integrates rigorous scientific research with rapid iteration cycles and a commitment to practical impact.
We value both excellence and pragmatism: you'll contribute to systems that are designed to operate in industrial environments - not just on paper.

✨ Diversity & Openness

At Quandela, we value intellectual diversity, curiosity, and initiative. If you’re passionate about QEC and see yourself contributing - even if you don’t meet every listed requirement - we’d love to hear from you.

Come as you are. If you're driven by challenge and inspired by the future of quantum computing—let's talk.