Your role at C12 Quantum Electronics:
Own the maturation of the engineering processes supporting C12's quantum hardware roadmap, ensuring that process capability evolves alongside the technology itself and remains compatible with future generations of quantum hardware
Develop and maintain a deep understanding of C12's end-to-end quantum hardware development processes, capturing critical knowledge, process flows, dependencies, assumptions and risk factors
Work directly with R&D and engineering teams to characterize processes, collect and analyze data, investigate failures, 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
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:
About you:
You have a MSc or PhD in Engineering, Physics, Materials Science, Nanotechnology, Semiconductor Processing, or a related technical field
You are a strong communicator, able to build trust across disciplines and influence technical decisions through data analysis and collaboration.
You are comfortable working with emerging technologies where process understanding, measurement strategies and engineering practices are still being developed
You have experience in semiconductor process development, process integration, device fabrication, advanced assembly or experimental hardware development
You have experience defining process metrics, analyzing variability, improving yield or repeatability, and supporting root-cause investigations
You have exposure to hardware characterization, test strategy, validation, reliability or process qualification activities.
Experience across several of the following fields is a strong plus: nanotechnology, nanoassembly, quantum hardware, cryogenic systems, MEMS, photonics, advanced instrumentation or other complex hardware environments
Programming or scripting experience for data analysis, process monitoring or automation such as Python or Matlab, is a plus
- 55,000 euros - 62,000 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
Skills Required
- MSc or PhD in Engineering, Physics, Materials Science, Nanotechnology, Semiconductor Processing, or related field
- 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
- Strong communication skills and ability to influence cross-disciplinary teams through data analysis and collaboration
- Comfortable working with emerging technologies where process understanding and measurement strategies are being developed
- Experience across nanotechnology, nanoassembly, quantum hardware, cryogenic systems, MEMS, photonics or advanced instrumentation
- Programming or scripting for data analysis, process monitoring or automation (e.g., Python, Matlab)
What We Do
C12 is building reliable quantum computers. The company is a spin-off from ENS launched in January 2020 by twin brothers Matthieu and Pierre Desjardins to supercharge the development of the lab’s promising new quantum technology. Quantum computing has the potential to change our lives. But frequent errors limit the technology’s viability. We are tackling the fundamental issue: the nature of the hardware itself. We are tapping into the simplest material–carbon–to drive a technological breakthrough in the field. Unlike other quantum computers, we use carbon nanotubes as the fundamental building block of our processor. By combining the power of an ultra-pure material with an easy-to-manufacture semiconductor device, we are building a scalable platform for quantum computing. Our executive co-founders bring a unique combination of scientific excellence and business skills to the company. Our team is made up of the world’s most accomplished experts in quantum electronics and carbon nanotube science. Our scientific advisors are renowned scientists and pioneers in spin qubits: Dr. Takis Kontos, Dr. Matthieu Delbecq and Dr. Jérémie Viennot. In June 2021, C12 secured a $10 million seed round with funding from 360 Capital, Bpifrance (Digital Venture Fund), Airbus Ventures, BNP Paribas Développement, and Octave Klaba (OVHcloud), and additional grants from Bpifrance and the Ile-de-France Region. We are leading quantum’s next material breakthrough, and we are just getting started. Silicon enabled the emergence of classical computing – it’s time for carbon to do the same for quantum !
