Commercial Project Manager

Paris April 21, 2026 Full Time

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 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 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.

Role Overview

We are looking for a Commercial Project manager to initiate and drive complex commercial projects and to help define go-to-market pathways for our quantum computing technologies at C12.

This role sits at the intersection of science, product, and market—requiring technical curiosity, project management skills and strong commercial instincts. You will work closely with research teams, customers and external partners to translate breakthrough technology into real-world applications.

You will report directly to the Head of Sales and collaborate with Innovation and Partnerships, Product management, as well as the Theory & Applications and Software teams.

Role Overview

We are looking for a Commercial Project manager to initiate and drive complex commercial projects and to help define go-to-market pathways for our quantum computing technologies at C12.

You will report directly to the Head of Sales and collaborate with Innovation and Partnerships, Product management, as well as the Theory & Applications and Software teams.

Really nice to Have

Exposure to quantum computing or quantum technologies
Experience with business partners management

What we offer:

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
Swile meal vouchers
Vibrant office culture (team lunches, offsite events, Friday breakfasts..)
Mental health support with moka.care
Training budget/ 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 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

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

Applications from women are encouraged and welcomed!

Key Responsibilities

Project management

Leading multiple projects with highly scientific content, utilizing tools for planning, tracking, and managing tasks, activities, and milestones.

Managing the execution of the respective statements of work; improving processes and methodologies for client project deliveries across the organisation.

Leading project meetings and workshops with clear, concise agendas, ensuring actions are recorded and followed up

Writing commercial proposals and grant applications that include project scope, resource requirements, goals, and deliverables in collaboration with clients and relevant experts.

Cultivating and maintaining strong relationships with customers throughout the partnership lifecycle.

Strategic Partnerships

Identify, develop, and manage partnerships with our business partners (e.g., algorithm builders, software providers,...)

Build and maintain a high-quality partners’ pipeline of strategic opportunities

Business development activities

Work closely with our quantum scientists and engineers to understand capabilities and roadmap

Partner with product and marketing teams to refine positioning and messaging.

Participating in relevant conferences to meet target customers and partners.

Supporting the marketing team in optimizing targeting strategies within the European market.

Requirements

About you

You have 4+ years of experience in project management or strategy consulting in the private sector. Experience in R&D or technical project management is a strong advantage.

You have experience working in deeptech, advanced hardware, or complex technical product companies (e.g., semiconductors, AI, HPC, photonics, etc.)

You are fluent in spoken and written English and French.

You are self-motivated and capable of working independently.

You are curious and passionate about cutting-edge technology, particularly quantum computing but also the diverse technologies of potential clients.

You thrive in a start-up environment, characterized by growth and creativity.

Education

Master’s degree in engineering, computer science, physics, or related field.

Advanced degree (PhD/MBA) is a plus.

Skills and experience

You have experience writing technical proposals, project plans, briefings and presentations.

You are familiar using project management tools like Linear.

You have experience and you like interacting with external customers.

You can collaborate across diverse teams of engineers.

You can creatively explain and present complex concepts to both technical and non-technical audiences.

Excellent communication and stakeholder management skills

Comfortable operating in an early-stage, fast-evolving environment