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Head of Theory & Applications

C12 Quantum Electronics

Job Location:

Paris - France

Monthly Salary: Not provided by the employer

Posted: 9 July 2026 (30+ days ago)

Application Deadline: 15 October 2026

Vacancies: 1 Vacancy

Job Summary

Founded in 2020 and based in the heart of Paris C12s 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. Thats why our foundersdeeply rooted in academic and engineering excellencehave chosen carbon nanotubes as the building blocks of our quantum processors. This ultra-pure material dramatically reduces error rates boosts performance and minimizes hardware overheadkey 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 weve raised over 25 million in funding published 11 scientific papers and secured 8 patents. Today our fast-growing team of 80 including 25 PhDs has over 26 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 youre 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:

As Head of Theory & Applications at C12 you are expected to lead and coordinate the Theory & Applications team across three main areas:

- Hardware Modeling
- Quantum Error Correction
- Quantum Algorithms for Industrial Applications

Key responsibilities:

You will define and drive the companys theory roadmap leveraging the expertise of team members to align with hardware development business priorities and industrial quantum advantage opportunities
You will strengthen the companys error correction strategy from quantum error correction code benchmarking to implementation and fault-tolerance roadmap
You will drive co-design efforts between hardware and theory teams working closely with domain experts to define scalable quantum computing architectures and long-term scalability strategies
You will recruit mentor and structure the theory team as the company grows
You will establish collaborations with academia and research partners and contribute to the scientific visibility and positioning of the company within the quantum ecosystem
You will prioritize research directions and resources by balancing scientific ambition hardware feasibility and business impact while building consensus across technical experts

About you:

You have a strong background in quantum computing with expertise in either:
- Quantum Error Correction
- Quantum Algorithms
You have a broad understanding of the quantum computing stack and ability to engage effectively with experts across theory and hardware domains
You have an architecture-level understanding of scalable quantum computing and fault-tolerant strategies
You have demonstrated scientific leadership with the ability to articulate a vision align experts and drive execution
You have an ability to connect theoretical developments with experimental and hardware constraints
Experience leading or mentoring research teams is highly appreciated
Experience working in startups or fast-pace private-sector environments is highly appreciated

What we offer:

92000 euros to 108000 euros yearly base salary
Stock options for every employee (BSPCE/ESOP)
Sponsored tripto conferences around the world
A highly dynamicinternational team
Swile meal vouchers
Mental health support with
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 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 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

We still encourage even if you dont meet all the requirements. Rest assured we are committed to finding the right fit for our team and are open to adjusting compensations based on skills and experiences.

Applications from women are especially welcomed!

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

Director

Apply Now

About Company

C12 Quantum Electronics

Explore C12's innovative quantum technology solutions using carbon nanotubes. Discover how our advancements in quantum computing are shaping the future of technology.

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