DevOps 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 founders—deeply rooted in academic and engineering excellence—have chosen carbon nanotubes as the building blocks of our quantum processors. This ultra-pure material dramatically reduces error rates, boosts performance, and minimizes hardware overhead—key ingredients for scalable, fault-tolerant quantum computing. By crafting a unique approach that scales, we aim to revolutionize quantum computing just as silicon transformed classical computing.

Since our founding, we've raised over €25 million in funding, published 11 scientific papers, and secured 8 patents. Today, our fast-growing team of 60, including 20 PhDs, has over 20 nationalities represented. We have our own cutting-edge lab spaces in Paris' historic Panthéon district, where scientists, engineers, and innovators work side-by-side to tackle some of the most exciting technical challenges of our time.

If you're 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.

Your role at C12 Quantum Electronics :

Our software development team is looking for a DevOps Engineer to join our growing team Working under the supervision of our Software Engineer Lead,  you  will:

• Manage and optimize our hosting infrastructure i.e but not limited to (AWS, OVH, and on-premise environments)
• Design, maintain, and grow our infrastructure-as-code - Terraform, configuration management — Ansible
• Build, maintain and optimize CI/CD pipelines to automate deployments and streamline development workflows
• Ensure high availability, security, and smooth performance of our services
• Plan new development for the infrastructure in collaboration with the lead developers
• Monitor, troubleshoot, and optimize system performance in production environments
• Contribute to documentation, best practices, and operational standards
• Be responsible for the application and review of security best practices, on the infrastructure and within C12

• You have 2+ years of experience in Devops
• Strong cloud experience, especially with AWS; experience with OVH or other cloud providers is a plus
• Proficiency with Linux systems administration; Windows administration knowledge is a bonus
• Hands-on experience with CI/CD tools and automation pipelines
• Containerization and orchestration skills, including Docker and Kubernetes
• Proficiency in scripting (Python, Bash, or similar) for automation and tooling
• Solid understanding of networking concepts, including DNS, TCP/IP, Load Balancing, etc
• Experience with monitoring, logging, and alerting tools to ensure system reliability
• Strong problem-solving and troubleshooting skills; able to investigate complex issues end-to-end
• A continuous learner mindset, eager to adopt new technologies and improve operational practices
• You have a good command of English (verbal and written)

• Stock options for every employee (BSPCE/ESOP)
• Two incredible office spaces in the heart of Paris (both next to the famous Panthéon)
• Sponsored trip to conferences around the world
• A highly dynamic international team
• Swile meal vouchers
• Vibrant office culture (team lunches, offsite events, Friday breakfasts..)
• Mental health support with
• Training budgets/ Annual Learning & Development Allowance
• Sabbatical leave (after 2 years in the company)

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 60-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.

C12 encourages all who feel qualified to apply. Recruitment decisions are based solely on qualifications, skills, knowledge and experience. Applications from women are particularly welcomed.