Join Us | Careers in Quantum Computing at C12

Our values

Excellence

Crafted science, purposeful speed

We work with exceptional minds to deliver rigorous, elegant solutions at the frontier of quantum.

Scientific Integrity

Trust in every qubit, truth in every word

We strive for reliability in everything we do, from our processors to our ideas. We earn trust without shortcuts or hype.

Diversity

Strength in uncommon paths

We’re building a team rich in experience, background, and identity, where diversity isn’t a metric but a mindset that fuels discovery.

Care

Quantum, with humanity

We care deeply for the problems we’re solving, for the world they impact, and for each other.

Curiosity

Depth over noise

We are seekers of understanding. We explore complexity with humility and hunger.

Perks & Benefits

At C12, we offer the essentials: healthcare, meal support, mental wellbeing, and green mobility.

But our benefits go further, reflecting how we build: with precision, care, and depth. We trust smart people to do meaningful work and give them what they need to thrive.

Office scene viewed through a window showing three people working at desks with laptops and computers.

Fair & Competitive Compensation

Value is measured with care.

We offer competitive, transparent salaries and equity (BSPCE) for every team member, ensuring everyone shares in C12’s success.

Growth isn’t linear here. You can advance in the direction that fits you best. We support three paths: Individual Contributor, People Manager, and Technical Expert. Progress is clear and recognized in every track.

Street view of historic buildings leading to a large domed neoclassical building with columns.

In the Heart of Paris

Quantum, in the Quartier Latin.

Work from our two connected offices near the Panthéon: 1,400 m² of labs and workspace, where ideas move fast and the view inspires.

Young man with glasses and a badge holding a cup and talking to another person indoors with groups of people in the background.

Conferences & Development

Wherever learning takes you.

We support your participation in conferences, workshops, and training programs worldwide. Whether you share your research, connect with peers, or deepen your skills, we’ll back your growth.

Modern office kitchen and meeting area with people sitting at a long table and one person walking in the background.

Language Support

Bridge every conversation.

We cover English and French classes to help you feel at home in the team and in France.

Two women sitting on a light blue couch in a modern room with a teal wall, gray abstract artwork, and circular blue decorations.

Sabbatical Leave

Space to reflect. And return.

After two years with us, you can take up to two months off, with your job waiting for you when you return.

A group of people socializing and smiling at a casual indoor gathering.

Culture in Motion

From cryostats to conversations.

Whether it's weekly team lunch, offsites, or a spontaneous toast to a paper submission, we make space for connection, not just coordination. And yes, there’s good coffee.