Quantum Nanofabrication Engineer

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...

A leading quantum computing firm in Paris is looking for a Senior Cyber Security Engineer to safeguard its IT environment. The role includes leading security practices, supporting compliance, and overseeing risk assessments. The ideal candidate has over 3 years in IT security, knowledge of ISO frameworks, and is fluent in English and French. This position...

A leading cybersecurity company in Paris is seeking a Senior Probe Appliance Engineer. In this role, you will take technical ownership of the COMPASS probe appliance, specializing in packet capture and traffic analysis. This position requires deep expertise in Linux system administration and kernel tuning. You will work on high-performance data paths,...

C12 Quantum Electronics in Paris is seeking a Process Integration Engineer to transform research-driven workflows into robust engineering processes for future quantum hardware generations. You will work across R&D and engineering to define metrics, drive improvements, and ensure manufacturability and industrialization for next-gen processors.Ideal candidates...

OverviewSoftware Engineer (Quantum Platform and Tools) — Haiqu is building a world‑leading software platform that enables previously impossible applications on modern quantum processors. Our full‑stack approach has shown industry‑first results in pilots with leading quantum early adopters. Backed by top investors, we offer a unique opportunity to...

A leading quantum software company is seeking a Software Engineer to contribute to the development of core components for a quantum platform. Responsibilities include designing hybrid workflows, optimizing system performance, and extending the SDK and developer tools. Successful candidates will have strong Python experience, familiarity with quantum...

C12 Quantum Electronics in Paris is seeking a Thermal Modeling & Cryogenic Systems Engineer (Quantum Hardware). You will own the thermal architecture of complex cryogenic quantum systems, ensuring scalability, stability and performance while collaborating with quantum physicists and engineers.You will develop system-level models, manage thermal budgets, and...

A leading quantum computing startup in Paris is looking for a Security Engineer to protect information systems and manage IT infrastructure. You will evaluate security objectives, conduct audits, and ensure compliance. The ideal candidate has a degree in IT or Information Security and at least 3 years of experience. Fluency in English and French is required,...

C12 Quantum Electronics in Paris is seeking a Cleanroom Engineer to oversee and improve cleanroom equipment and processes for wafer fabrication in R&D and early production stages.You will collaborate with researchers, facilities, and external vendors while upholding top safety and quality standards in a startup environment. English proficiency is required,...