Role overview:
As a Senior Quantum Error Correction (QEC) Scientist, you will play a central role in shaping C12’s fault-tolerant quantum computing strategy.
Your work will be crutial in determining the path toward achieving logical qubit performance exceeding that of physical qubits, a key milestone for practical quantum advantage.
Key Responsibilities:
- Design and develop QEC codes and fault-tolerant architectures adapted to C12's qubit technology or adapt existing solutions
- Analyze noise models and error channels specific to carbon nanotube spin qubits and translate them into QEC performance metrics
- Collaborate closely with experimental teams to align QEC protocols with hardware constraints and roadmap
- Contribute to the design of decoding algorithms and error mitigation strategies compatible with QEC schemes
- Stay at the forefront of advances in QEC theory and integration relevant innovations into C12's architecture
- Mentor junior researchers and contributes to building C12's QEC expertise
About you:
- You are fluent in English
- You hold a PhD in Physics, Applied Mathematics, Computer Science or a closely related field
- You have at least 2-5 years of experience in quantum computing research (academic or industrial)
- You have strong expertise in quantum error correction, fault-tolerant quantum computing or quantum information theory
- You have experience with numerical simulations and relevant tools (e.g. Python, Qiskit, Stim)
- You understand realistic noise processes and their impact on quantum circuits
What we offer:
- Stock options for every employee (BSPCE/ESOP)
- Two office spaces in the heart of Paris (both next to the Panthéon)
- Sponsored trip to conferences around the world
- Swile meal vouchers
- Vibrant office culture (team lunches, offsite events, Friday breakfasts..)
- Mental health support with moka.care
- Training budget/ Annual Learning & Development Allowance
- Sabbatical leave (after 2 years in the company)
What We Do
C12 is building reliable quantum computers. The company is a spin-off from ENS launched in January 2020 by twin brothers Matthieu and Pierre Desjardins to supercharge the development of the lab’s promising new quantum technology. Quantum computing has the potential to change our lives. But frequent errors limit the technology’s viability. We are tackling the fundamental issue: the nature of the hardware itself. We are tapping into the simplest material–carbon–to drive a technological breakthrough in the field. Unlike other quantum computers, we use carbon nanotubes as the fundamental building block of our processor. By combining the power of an ultra-pure material with an easy-to-manufacture semiconductor device, we are building a scalable platform for quantum computing. Our executive co-founders bring a unique combination of scientific excellence and business skills to the company. Our team is made up of the world’s most accomplished experts in quantum electronics and carbon nanotube science. Our scientific advisors are renowned scientists and pioneers in spin qubits: Dr. Takis Kontos, Dr. Matthieu Delbecq and Dr. Jérémie Viennot. In June 2021, C12 secured a $10 million seed round with funding from 360 Capital, Bpifrance (Digital Venture Fund), Airbus Ventures, BNP Paribas Développement, and Octave Klaba (OVHcloud), and additional grants from Bpifrance and the Ile-de-France Region. We are leading quantum’s next material breakthrough, and we are just getting started. Silicon enabled the emergence of classical computing – it’s time for carbon to do the same for quantum !
