Process Integration Engineer

Overview

Founded in 2020 and based in Paris, C12’s mission is to be at the center of one of the biggest technological breakthroughs of the century and to change the course of history by building a universal quantum computer. C12 focuses on carbon nanotubes as the building blocks of quantum processors to reduce error rates and enable scalable, fault-tolerant quantum computing. The company has raised over €25 million in funding and has a fast-growing team with a global presence, including cutting-edge lab spaces in Paris. If you are 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.

Role

As a Process Integration Engineer, you will play a central role in transforming C12's quantum hardware development from research-driven workflows into robust, measurable and repeatable engineering processes capable of supporting future product generations.

Working across R&D and engineering teams, you will identify the factors driving performance and variability, define meaningful process metrics, drive process improvements and establish the foundations required for future validation, manufacturability and industrialization. This role sits at the frontier between research and engineering, where process understanding, measurement strategy, and engineering rigor become critical enablers of future quantum hardware products.

Key responsibilities

• Own the maturation of the engineering processes supporting C12's quantum hardware roadmap, ensuring that process capability evolves alongside the technology and remains compatible with future generations of quantum hardware
• Develop and maintain a deep understanding of end-to-end quantum hardware development processes, capturing critical knowledge, process flows, dependencies, assumptions and risk factors
• Work with R&D and engineering teams to characterize processes, collect and analyze data, investigate failures, and drive process improvements across fabrication, assembly, integration and characterization activities
• Ensure process assumptions, dependencies, risks, and maturity gaps are visible and integrated into engineering and program decisions
• Identify process limitations, scalability bottlenecks, and opportunities for standardization, automation, process control, and future industrialization. Evaluate which processes should be strengthened, adapted, or reimagined to support future generations of quantum hardware

Qualifications

• A MSc or PhD in Engineering, Physics, Materials Science, Nanotechnology, Semiconductor Processing, or a related technical field
• A strong communicator who can build trust across disciplines and influence technical decisions through data analysis and collaboration
• Comfortable working with emerging technologies where process understanding, measurement strategies and engineering practices are still being developed
• Experience in semiconductor process development, process integration, device fabrication, advanced assembly or experimental hardware development
• Experience defining process metrics, analyzing variability, improving yield or repeatability, and supporting root-cause investigations
• Exposure to hardware characterization, test strategy, validation, reliability or process qualification activities
• Experience in nanotechnology, nanoassembly, quantum hardware, cryogenic systems, MEMS, photonics, or other complex hardware environments
• Programming or scripting experience for data analysis, process monitoring or automation (such as Python or Matlab) is a plus

What we offer

• Salary: 55,000 – 62,000 euros yearly base
• Stock options for every employee (BSPCE/ESOP)
• Sponsored trips to conferences around the world
• A highly dynamic international team
• Swile meal vouchers
• Mental health support
• Training budget / Annual Learning & Development Allowance
• Sabbatical leave (after 2 years in the company)
• Vibrant office culture with two Paris office spaces, team lunches, offsite events, and Friday breakfasts

You should join us if...

• You like hands-on work and technology
• You want to contribute to landmark results in quantum computing and the emerging quantum technologies
• You want to work within a team of 80+ people with backgrounds in nanofabrication, quantum electronics, and carbon nanotube science
• You want to thrive in an exceptional scientific environment with industrial and academic partners
• You share our values of excellence, scientific integrity, diversity, curiosity, and care and want to help define our product-focused culture

We still encourage applicants who do not meet all requirements. 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.