Quantum RF Engineer
Quantum RF Engineer
Posted on :
16-08-2025
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1 Vacancy
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Job Description
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. Todayourfast-growingteamof60including20PhDshasover20nationalitiesrepresented. 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 :
Your main responsibility will be contributing to the design & optimization of passive and active on-chip microwave components for qubit control qubit-qubit interfacing and qubit readout. You would be performing EM and circuit simulations for individual components and integrated systems along with contributions to cryogenic measurements for component and system performance verification.
Responsibilities :
- Design and simulation of DCRF and microwave on-chip components
- Contributing to the cryogenic measurement
- Contributing to the continuous improvement of our python based design repository and integration with simulation workflow
- Occasional involvement in design of mechanical parts (Fusion 360 SolidWorks) and PCBs.
About you:
- At least Masters degreein Quantum Physics (preferred) Applied Physics Electrical engineering Nanotechnology or Nanoscience or other related disciplines
- Previous experience designing and integrating RF & microwave components and subsystems:
- Previous electromagnetic simulations using industry standard tools such as HFSS SONNETADSComsol
- High-frequency (RF microwave or mm-wave) IC or PCB design
- Previous experience with chip design layout tools like Klayout L-Edit
- Design/development in Python
- Great communication in English (verbal and written)
- Previous experience with cryogenic RF and DC measurement
- Knowledge of semiconductor device physics and microfabrication processes
- Knowledge of fabrication principles and the constraints they impose on physical device parameters
A plus to have :
What we offer:
- Flexible rhythm of remote work
- Stock options for every employee (BSPCE/ESOP)
- Two incredible office spaces in the heart of Paris (both next to the famous Panthéon!)
- Sponsored tripto conferences around the world
- A highly dynamicinternational team
- Swile meal vouchers
- Breakfastfor all every Friday
- Mental health support with
- Training budgets/ Annual Learning & Development Allowance
- Sabbatical leave (after 2 years in the company)
You should join us if...
- You want to have a key role in a growing startup with challenges at the frontier of the 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 55-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 from women are particularly welcomed.
Employment Type
Full-Time
Key Skills
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