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Location
In office (Paris)
Seniority
Staff · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 26, 2026. First seen by Alion on Aug 17, 2026. C12 scores A on the Alion truth index.

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C12

C12 is a quantum computing hardware company headquartered in Paris, France, and founded in 2020 by twin brothers Matthieu and Pierre Desjardins. The company builds spin qubits from ultra pure carbon nanotubes suspended over silicon chips, an approach intended to reduce the noise that limits conventional solid state qubits. It works with research institutions and industrial partners in Europe and manufactures its devices using semiconductor compatible processes.

Your role at C12:

    You will lead the nano-assembly team, composed of 3 research engineers. You will help them develop and operate efficiently our nano-assembly setups for the transfer of ultra-pure carbon nanotubes onto our quantum processor microchips.

    Responsibilities:

  • Continuous improvement of our custom nano-assembly vacuum setups for increased throughput and yield
  • Design and validation of mechanical, electrical and chemical processes to optimize the quality of the assembled qubits
  • Working with the software team to improve our stack for control software, data storage and data analysis
  • Analyze, summarize and present data

About You:

  • You have at least 3 years of experience in R&D or a PhD in Electrical Engineering, Physics, Applied Physics, Materials Science or other related field
  • You have some experience in managing R&D engineers and organizing their work
  • You have some project management experience
  • You have some experience in hardware and experimental setup design and fabrication
  • You like collecting, organizing and analyzing your data
  • You have experience in python for hardware control and data analysis
  • You are detail-oriented and organized in your work and documentation style
  • Good communication in English (oral and written)
  • Preferred Traits:

  • Experience in semiconductors
  • Experience with high vacuum systems
  • Experience in materials characterization techniques (SEM, TEM, AFM, probe station)
  • Experience in carbon nanotubes
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