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Salary
≈ $23k – $44k per year (Estimated)
Location
In office (Paris)
Seniority
Intern
Employment
Internship

Confirmed on the employer's own hiring board on Oct 25, 2026. First seen by Alion on Oct 7, 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:

    As part of the Carbon NanoTube (CNT) Growth team at C12, you will work on the key component of the quantum processors and search for ways to improve the quality and yield of their production process.

    Your job will involve:

  • Getting familiar with the CVD setup, C12 processes and characterization equipment - e.g. SEM, EDX, AFM, mass spectrometer

  • Designing an experimental protocol to assess the influence of the Chemical Vapor Deposition (CVD) parameters on the growth of carbon nanotubes - e.g. geometry, density of catalyst nanoparticles, position in the furnace - and on the overall performances of the CVD

  • Collaborating with the characterization and nanofabrication teams to characterize the catalyst nanoparticles and to determine the properties of the grown carbon nanotubes

About You:

  • You are pursuing a Master’s degree in engineering, physics, chemistry or any related field and are looking for an end-of-studies internship

  • You love experimental lab work, have a problem-solving attitude - a previous experience in a lab / cleanroom is a plus

  • You are used to collecting, organizing and analyzing experimental data - programming skills are a plus (e.g. python)

  • You are result-oriented, organized and rigorous in your documentation

  • You can fluently communicate in English (verbal and written)

  • Preferred traits

  • Experience in materials characterization techniques (e.g. SEM, EDX, AFM)

  • Experience with small electronics and mechanical parts

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