Cleanroom Engineer

Cleanroom Engineer at C12

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. C12 focuses on using carbon nanotubes as the building blocks of its quantum processors, aiming for scalable, fault‑tolerant quantum computing.

As a Cleanroom Engineer at C12, you will be responsible for the operation, maintenance, and continuous improvement of cleanroom equipment. You will work hands‑on with several process systems, ensuring reliable wafer production while maintaining the highest standards of safety, quality, and uptime in a startup environment.

Key Responsibilities

• Take technical ownership of several cleanroom tools, including:
• Regular performance checks, calibration, and preventive maintenance
• Troubleshooting and first‑line repairs
• Operate process tools to support wafer fabrication for R&D and early production
• Anticipate technical and operational risks; propose and implement mitigation actions
• Coordinate with equipment manufacturers, service engineers, and vendors for installations, upgrades, and major repairs
• Anticipate facility‑related bottlenecks (utilities, gases, vacuum, HVAC, etc.) and support continuous improvement initiatives
• Develop, implement, and maintain safety standards, SOPs, and best operational practices
• Interface efficiently with subcontractors and suppliers to sustain an uninterrupted fabrication process
• Contribute to cleanroom documentation, tool logs, spare parts management, and maintenance planning

Qualifications

• Bachelor’s or master’s degree in Engineering, Physics, Materials Science, Micro/Nano‑fabrication, or a related field
• Hands‑on experience in a cleanroom environment (academic or industrial)
• Practical knowledge of some of the following processes or tools: Lithography; Thin‑film deposition (PVD, CVD, ALD); Dry etching (RIE, ICP) and/or wet processing
• Experience with tool maintenance, troubleshooting, and vendor coordination
• Strong awareness of cleanroom safety and chemical handling
• Ability to work autonomously, prioritize tasks, and thrive in a startup environment
• Fluency in English (working proficiency required)

Compensation & Benefits

• €53,000 – €70,000 per year
• Stock options for every employee (BSPCE/ESOP)
• Sponsored trips to conferences around the world
• Swile meal vouchers
• Mental health support with moka.care
• Training budgets / 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 should join us if...

• 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 85‑people team 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 you to apply, 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 compensation based on skills and experience.

Applications from women are especially welcomed!