Head of Nanofabrication

France·ParisFull - timeexecutive

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Key Responsibilities

You will define and drive C12’s nanofabrication strategy, balancing technology development,

Technical Tools

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Founded in 2020 and based in the heart of Paris, C12’s mission is to be at the center of one of the biggest technological breakthroughs of the century and change the course of history by building a universal quantum computer.

At C12, we believe that achieving a true breakthrough in quantum computing requires rethinking the fundamentals. That’s why our founders—deeply rooted in academic and engineering excellence—have chosen carbon nanotubes as the building blocks of our quantum processors. This ultra-pure material dramatically reduces error rates, boosts performance, and minimizes hardware overhead—key ingredients for scalable, fault-tolerant quantum computing. By crafting a unique approach that scales, we aim to revolutionize quantum computing just as silicon transformed classical computing.

Since our founding, we’ve raised over €25 million in funding, published 11 scientific papers, and secured 8 patents. Today, our fast-growing team of 80+, including 25 PhDs, has over 26 nationalities represented. We have our own cutting-edge lab spaces in Paris' historic Panthéon district, where scientists, engineers, and innovators work side-by-side to tackle some of the most exciting technical challenges of our time.

If you're passionate about shaping the future of quantum technology and want to make a real impact, C12 offers a unique environment to grow, learn, and innovate.

As Head of Nanofabrication at C12, you will own the strategy, development and execution of our nanofabrication activities, from current wafer production to the next generations of processes.

Key responsibilities:

You will define and drive C12’s nanofabrication strategy, balancing technology development, process maturity and production needs

You will drive yield improvement effort and the development of next-generation fabrication processes and ensure their successful introduction into production

You will build a robust and scalable nanofabrication organization, with strong standards around process control, documentation and data

You will lead the team through technical challenges and process deviations, ensuring fast and structured problem resolution

You will recruit, develop and empower a growing team of nanofabrication engineers and technicians

You will contribute to equipment strategy and tool procurement in close collaboration with Operations

You will work closely with the CTO, Operations, Chip Design and downstream production teams to align priorities and support C12’s technology roadmap

You will provide technical expertise for collaborations with external foundries, RTOs and fabrication partners

You have significant experience in nanofabrication and a strong understanding of advanced cleanroom processes.

You have a proven track record of leading technical teams in complex R&D or prototyping environments.

You are able to set direction, make trade-offs and rely effectively on domain experts.

You are equally comfortable driving new process development and building the discipline required for robust, reproducible production.

You bring a strong data-driven mindset and know how to build the right structures for process learning and continuous improvement.

You are pragmatic, adaptable and effective in fast-moving environments where priorities and technical challenges can evolve quickly.

Experience in an RTO, advanced prototyping cleanroom or similar environment is highly valued.

Experience in quantum technologies or quantum-device fabrication is a plus.

What we offer:

92,000 euros to 108,000 euros yearly base salary
Stock options for every employee (BSPCE/ESOP)
Sponsored trip to conferences around the world
A highly dynamic international team
Swile meal vouchers
Mental health support with moka.care
Training budget/ Annual Learning & Development Allowance
Sabbatical leave (after 2 years in the company)
Vibrant office culture (two office spaces in the heart of Paris, team lunches, offsite events, Friday breakfasts..)

You like hands-on work and technology
You want to contribute to achieving landmark results in quantum computing, making a difference in the emerging quantum technologies
You want to work within a team of 80+ people with various backgrounds in nanofabrication, quantum electronics, and carbon nanotube science to create a revolutionary quantum computing processor
You want to thrive in an exceptional scientific environment with several industrial and academic partners
You share our values (excellence, scientific integrity, diversity, curiosity, and care) and want to help us define our product-focused culture and ambition to accelerate

We still encourage even if you don’t meet all the requirements. Rest assured, we are committed to finding the right fit for our team and are open to adjusting compensations based on skills and experiences.

Applications from women are especially welcomed!