Quantum Error Correction Researcher

Quandela is a European deeptech scale-up building modular, scalable and energy-efficient photonic and spin-optical quantum computers.

Our quantum computing platform is accessible both via the cloud and on-premises.

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 Quandel’s cutting-edge quantum dot technology.

Within this roadmap, Quantum Error Correction and Fault-Tolerant Quantum Computing play a central role in transforming photonic quantum processors into scalable and reliable computing platforms.

You will join the Fault-Tolerant Quantum Computing team within Quandela’s Architecture division. The team brings together researchers, engineers, and students working on Quantum Error Correction and fault-tolerant protocols.

The team works closely with the quantum information, quantum device physics, software and experimental teams across the company.

Within this framework, you will contribute to the development of quantum error correction and fault-tolerant computing strategies that enable the scaling of Quandela’s Spin-Optical Quantum Computing architecture.

Research topics include quantum error-correcting codes, decoder design, fault-tolerant logical operations, resource estimation, and simulation methods, with the goal of developing the best pathway toward fault tolerance for Quandela’s technology. 

As a Quantum Error Correction Researcher, you will contribute to the development of fault-tolerant strategies supporting Quandela’s roadmap toward scalable quantum computing.

Your work will include:

• Study and evaluate quantum error-correcting codes under realistic noise assumptions.
• Design and benchmark fault-tolerant protocols and logical operations.
• Develop and use simulation tools to assess QEC and FTQC strategies.
• Evaluate decoders and analyze their performance trade-offs.
• Collaborate across teams to connect theory with implementation constraints.
• Contribute to publications, conference talks, and academic collaborations.
• Track and assess advances in Fault-Tolerant Quantum Computing and related fields.

We are looking for a researcher with expertise in QEC and a strong interest in bridging theoretical advances with practical fault-tolerant quantum computing architectures.

• PhD, or near completion of a PhD, in Physics, Mathematics, Computer Science, Quantum Information, or a related field.
• Research experience in Quantum Error Correction, FTQC, or related topics within quantum information science.
• Experience with scientific programming and numerical simulations. 
• Experience with decoding, compilation, resource estimation, or QEC codes is a plus.
• Ability to collaborate within multidisciplinary teams.
• Fluent in English (French is not required). 
• Curiosity, scientific rigor, and willingness to learn.

Bonus Points 

• Track record of scientific publications appropriate to career stage.
• Experience with Stim or similar simulation frameworks. 
• Experience working with quantum computing hardware
• Familiarity with photonic QC concepts is appreciated but not required.
• Ability to communicate complex ideas clearly. 

• Flexible working environment across our Paris/Massy offices.
• Profit-sharing and a company savings plan
• Public transport subscription covered at 50%
• Annual sustainable mobility bonus for eco-friendly transport (e-bike, electric car)
• Fully covered health insurance (Alan)
• Referral program (€1,000 for a junior and €2,000 for an experienced candidate)
• Access to a nursery via choisir-ma-creche or contribution to childcare expenses
• Subsidy for gym membership and sports activities (Gymlib)
• Meal subsidies (Swile)

• Talent Acquisition Interview (30' - 45')
• Hiring Manager Interview (45')
• Seminar on selected work for the FTQC team
• Meeting with the teams - Situational exercise with the FTQC team
• Three Reference Checks
• Offer
  

Beyond That:

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 : If you're driven by scientific challenges and inspired by the future of quantum computing, let's talk !