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 chang...
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 20 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.
Job Scope
High-level purpose of function
The Clean and Dry Room Engineer is responsible for the design, operation, monitoring, and continuous improvement of cleanroom and dry room environments used in battery cell manufacturing. This role ensures that environmental conditions meet stringent cleanliness and humidity control standards to support high-quality production and regulatory compliance.
Key Responsibilities
Overall areas of responsibilities and activities, but not limited to
· Support the operation and maintenance of clean and dry room systems, including HVAC, dehumidification, filtration, and pressure control.
· Ensure compliance with ISO 14644-1 standards and internal quality protocols.
· Monitor environmental parameters (e.g., particle count, temperature, humidity, pressure) and respond to deviations.
· Coordinate with production, quality, and maintenance teams to support manufacturing needs and minimize downtime.
· Lead troubleshooting and root cause analysis for cleanroom-related issues.
· Support validation, commissioning, and qualification of clean and dry room systems.
· Maintain documentation and records for audits and regulatory inspections.
· Drive continuous improvement initiatives to enhance system performance and energy efficiency.
Accountability/Authorization
· Budget responsibility: No
· Direct reports: No
· Manager work environment responsibility: No
· All employees are accountable for complying with safety regulations and actively supporting a safe workplace.
Requirements
Educational background and previous experience required for the role
Qualifications and Experience
· Bachelor’s degree in Mechanical, Electrical, or Facility Engineering.
· 3+ years of experience in cleanroom or dry room engineering, preferably in battery or semiconductor manufacturing.
· Familiarity with ISO 14644 standards and GMP practices.
Specific skills
· Strong understanding of HVAC, filtration, and dehumidification systems.
· Experience with environmental monitoring systems and data analysis.
· Proficiency in CMMS and building management systems (BMS).
· Ability to interpret technical drawings and specifications.
Health, Safety & Environmental responsibility
· Follow company policies and procedures
· Use PPE according to safety rules
· Report hazards and incidents
Yrken med teknisk inriktningCivilingenjörsyrken inom maskinteknik
ABOUT US
QuantWare is building the world’s most powerful quantum processors to solve humanity's greatest challenges. We do this with our
unique VIO™ technology, the only QPU architecture that breaks the hardware barriers that have held quantum computing back,
unlocking the path to MegaQubit quantum processors.
With VIO, we are paving the way for the hyper-scale quantum computers that will change the world. And delivering on that vision
demands people who don’t shy away from tackling the hardest challenges of our time. That’s where you come in!
As a Maintenance Engineer you will be responsible for keeping the technical installations, that are critical to our cleanroom
environment, running safely and reliably. These includes but is not limited to air handling systems, gas cabinets, nitrogen
generation, compressed air, ultrapure water and chemical supply systems.
The main focus of the role is to ensuring the continuity and reliability of critical utilities. In particular, the ventilation /
air handling system and the UPW installation must remain continuously operational and reliable. Your work will be essential as we
scale to increasingly complex systems and deliver on the promise of quantum computing.
What you'll be doing
As Maintenance Engineer Cleanroom & Utilities, you will be responsible for:
* Daily monitoring, inspection and maintenance of cleanroom-related installations;
* Ensuring that the air handling / ventilation system remains continuously operational;
* Monitoring cleanroom and equipment conditions such as air quality, pressure differences, temperature and humidity, nitrogen
generation, compressed air and special gas systems;
* Checking and maintaining the ultrapure water / UPW installation;
* Supporting chemical supply systems;
* Identifying, analysing, and resolving technical issues quickly and effectively;
* Performing and coordinating preventive maintenance;
* Participate in emergency response activities and provide technical support during utility outages;
* Coordinating and supervising external suppliers and service contractors;
* Maintaining technical documentation, maintenance logs and service reports;
* Following all safety procedures and cleanroom protocols;
* Contributing to improvements in reliability, safety and efficiency.
Your Profile
* A completed technical education at MBO-4 or HBO level, for example in mechanical engineering, electrical engineering,
installation technology, process technology or a similar field;
* Experience with technical installations in an industrial, high-tech or cleanroom environment;
* Knowledge of HVAC / air handling systems;
* Experience with utilities such as compressed air, nitrogen, process water or ultrapure water;
* Experience with gas systems or chemical supply systems is a strong advantage;
* A precise, structured and safety-conscious way of working;
* Strong problem-solving skills and a high sense of responsibility;
* Willingness to work according to strict cleanroom and safety procedures;
* Good communication skills when working with colleagues, suppliers and contractors.
Language requirements
For this position, Dutch must be your main working language.
You should also have a good command of English and be able to speak, read and write English confidently, as technical
documentation, supplier communication and equipment manuals will be in English.
Don't tick every box? Apply anyway. We know great candidates don't always follow a straight path, and we value diverse experience,
perspectives, and ways of thinking. If this role excites you and you believe you can make an impact, we'd love to hear from you!
What We Offer:
At QuantWare, you’ll be part of a high-performing team of world-class experts in an ambitious, fast-moving environment. From day
one, you’ll have the trust, tools, and support to do your best work. Here’s what you can expect:
Competitive salary - A salary that reflects the impact and importance of the role (and of course 8% holiday allowance)
Pension that’s built to last - A generous and future-proof pension plan that includes partner and dependent coverage.
Flexibility built on trust - We focus on outcomes. Work flexibly, in a hybrid setup, with an open vacation policy that lets you
manage your time
Personal growth - We invest in your L&D, with a budget available to each team member, dependent on their individual ambitions,
development needs, and performance
A connected team - We make space to celebrate wins together, with team events, offsites, and spontaneous moments that bring us
closer
Diversity & Inclusion at QuantWare
We’re an ambitious company, not only for our goals but also to become an even more diverse and inclusive team. We know this helps
us with better decisions, more innovation, and strengthens our culture. In particular, we’d love to see more women in the quantum
industry!
So if you’re a female talent, excited about this opportunity but don’t meet every single requirement, we still encourage you to
apply.
As part of our recruitment process, candidates may be required to undergo pre-employment screening.
ABOUT US
QuantWare is building the world’s most powerful quantum processors to solve humanity's greatest challenges. We do this with our
unique VIO™ technology, the only QPU architecture that breaks the hardware barriers that have held quantum computing back,
unlocking the path to MegaQubit quantum processors.
With VIO, we are paving the way for the hyper-scale quantum computers that will change the world. And delivering on that vision
demands people who don’t shy away from tackling the hardest challenges of our time. That’s where you come in!
We are building a state-of-the-art fabrication facility dedicated to manufacturing quantum processors. As a Process Engineer you
will sit at the intersection of R&D and operations, translating cutting-edge quantum device research into repeatable,
high-yielding processes.
You will play a central role in two critical phases of the fab ramp-up: (1) transferring processes from the R&D team into the
kilofab environment through MES and optimizing them for yield, throughput, and repeatability; and (2) qualifying new capital
equipment as it arrives on the fab floor through Site Acceptance Testing (SAT).
WHAT YOU'LL BE DOING
Tool Qualification & SAT
* Lead or co-lead Site Acceptance Testing (SAT; IQ/OQ/PQ) for incoming process tools (at least for 2 process modules).
* Create SAT criteria in collaboration with equipment engineers and tool vendors; Negotiate test conditions and results sign-off.
* Execute qualification wafer runs, analyze results, and generate formal SAT reports with pass/fail determinations.
* Manage your responsible tool installation timelines together with Facilities and Equipment Engineering to minimize schedule
impact.
* Coordinate vendor support during tool bring-up and drive resolution of open issues to baseline release.
Process Transfer & Optimization
* Own the end-to-end transfer of at least 2 process modules (PVD, CVD, ALD, dry/wet etching, track, evaporation, dicing and
laser/e-beam writing) from R&D to kilofab.
* Work closely with R&D scientists to ensure process intent is preserved during transfer and to feed learnings back upstream.
* Develop and execute process qualification plans (PQPs): establishing process windows, control limits, and acceptance criteria.
* Establish and maintain process control monitoring (SPC) for all processes and set up fault detection classification (FDC) with
the fab automation team.
* Drive DOE (Design of Experiments) to optimize key process parameters for yield improvement.
* Use data driven decision making to perform root cause analysis to identify and resolve process issues.
* Document all learnings made in a structured way so these can form the basis of OCAPs in the future.
* Document SOPs and train technicians on tool operations and wafer level metrology.
* Own the process engineering scope within the MES: Manage recipe lifecycle (creation, revision, versioning, and retirement),
maintain process and parameter data integrity to ensure traceability, deploy SPC, update process consumables & DOE creations.
* Participate in the Change Control Board (CCB): Provide relevant data for review and drive the approval for the change of
process.
* Support the rapid introduction of new processes and products to match Quantware's fast-evolving product roadmap demands.
* Build respectful relationships across process engineering, process integration, R&D, Equipment Engineering, facilities and
production teams to drive cross-functional alignment to achieve a win-win outcome.
* Proactively build and document deep hardware knowledge of responsible process tools, connecting tool mechanics to process
behavior to drive informed optimization and faster troubleshooting.
YOUR PROFILE
* MSc or PhD in Physics, Materials Science, Electrical Engineering, Chemical Engineering, or a closely related discipline.
* 3+ years of hands-on cleanroom process engineering experience in a semiconductor fab or advanced materials fabrication
environment.
* Demonstrated experience with at least two of the core process modules listed above (PVD, CVD, ALD, dry/wet etching,
evaporation, dicing, track or laser/e-beam writing).
* Practical experience executing or supporting equipment qualification or SAT activities.
* Proficiency in statistical analysis tools (JMP, Minitab, Python/R for DOE and SPC analysis).
* Strong documentation skills; experience writing SOPs, process & tool specifications, and qualification reports.
* Ability to work in a Class 100/ISO 5 (or equivalent) cleanroom environment.
* Experience in superconducting qubit fabrication, cryogenic device processing, or other quantum technology contexts is a bonus.
* Familiarity with cryogenic material constraints (e.g. film stress, thermal cycling behavior) is also desirable.
Don't tick every box? Apply anyway. We know great candidates don't always follow a straight path, and we value diverse experience,
perspectives, and ways of thinking. If this role excites you and you believe you can make an impact, we'd love to hear from you!
What We Offer:
At QuantWare, you’ll be part of a high-performing team of world-class experts in an ambitious, fast-moving environment. From day
one, you’ll have the trust, tools, and support to do your best work. Here’s what you can expect:
Competitive salary - A salary that reflects the impact and importance of the role (and of course 8% holiday allowance)
Pension that’s built to last - A generous and future-proof pension plan that includes partner and dependent coverage.
Flexibility built on trust - We focus on outcomes. Work flexibly, in a hybrid setup, with an open vacation policy that lets you
manage your time
Personal growth - We invest in your L&D, with a budget available to each team member, dependent on their individual ambitions,
development needs, and performance
A connected team - We make space to celebrate wins together, with team events, offsites, and spontaneous moments that bring us
closer
Diversity & Inclusion at QuantWare
We’re an ambitious company, not only for our goals but also to become an even more diverse and inclusive team. We know this helps
us with better decisions, more innovation, and strengthens our culture. In particular, we’d love to see more women in the quantum
industry!
So if you’re a female talent, excited about this opportunity but don’t meet every single requirement, we still encourage you to
apply.
As part of our recruitment process, candidates may be required to undergo pre-employment screening.
