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.
Overview:
C12 Quantum Electronics is developing a hybrid quantum architecture based on spin qubits in carbon nanotubes coupled through a circuit quantum electrodynamics (cQED) platform. Our approach combines the exceptional coherence properties of carbon-based qubits with high-connectivity microwave architectures with the goal of building a fault-tolerant quantum processing unit.
The Qubit Control team sits at the heart of this effort. We develop the methods that make qubits work: tuning protocols readout strategies gate implementations. We optimise the control and readout electronics and protocols explore large parameter spaces investigate the physics of the spin qubit and translate physical insight into engineering solutions.
Working at the intersection of quantum physics engineering and software you will collaborate daily with theory and the other engineering teams all co-located in our Paris lab to make those interactions as direct and continuous as possible.
C12 is transitioning from a phase of scientific discovery and proof-of-concept demonstrations to one of systematic scaling. This means our focus is shifting towards automation reproducibility and process maturity without sacrificing the scientific rigor and curiosity that got us here.
It is a demanding and exciting moment: we are still making new science while simultaneously building the infrastructure that will carry us to a quantum advantage demonstration. The person joining this team will need to be both a rigorous scientist and a pragmatic builder!
Responsibilities
Design calibrate and optimize DC and microwave experiments in dilution cryostats equipped with state-of-the-art high-frequency control electronics
Develop scalable measurement and analysis workflows: well-documented reproducible and built to run with increasing autonomy
Sustain a close feedback loop with engineering teams to continuously improve device performance
Work closely with the theory team to connect experimental observations with physical models
Actively collaborate with the software team to execute our automation roadmap from experiment scheduling to data analysis as we scale toward a full QPU
Deepen our understanding of spin qubits in carbon nanotubes integrated within high-impedance cQED architectures
About you
You are driven by the scientific and engineering challenge of building a quantum computer and you want to contribute to a meaningful milestone in the field
You hold a PhD (or Masters with substantial research experience) in quantum physics or a closely related discipline
You have hands-on experience with quantum experiments DC transport microwave spectroscopy or both
You write Python fluently and use it autonomously to control experiments process data and build reusable tools
You hold yourself to high scientific standards and are equally motivated by results
You communicate clearly in English in writing and in conversation across technical and non-technical audiences
55000 - 62000 a year
This is the salary range for a mid-senior profile. That said we still encourage you to apply 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 compensation based on skills and experience.
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!)
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!
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:
IC
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 req...
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.
Overview:
C12 Quantum Electronics is developing a hybrid quantum architecture based on spin qubits in carbon nanotubes coupled through a circuit quantum electrodynamics (cQED) platform. Our approach combines the exceptional coherence properties of carbon-based qubits with high-connectivity microwave architectures with the goal of building a fault-tolerant quantum processing unit.
The Qubit Control team sits at the heart of this effort. We develop the methods that make qubits work: tuning protocols readout strategies gate implementations. We optimise the control and readout electronics and protocols explore large parameter spaces investigate the physics of the spin qubit and translate physical insight into engineering solutions.
Working at the intersection of quantum physics engineering and software you will collaborate daily with theory and the other engineering teams all co-located in our Paris lab to make those interactions as direct and continuous as possible.
C12 is transitioning from a phase of scientific discovery and proof-of-concept demonstrations to one of systematic scaling. This means our focus is shifting towards automation reproducibility and process maturity without sacrificing the scientific rigor and curiosity that got us here.
It is a demanding and exciting moment: we are still making new science while simultaneously building the infrastructure that will carry us to a quantum advantage demonstration. The person joining this team will need to be both a rigorous scientist and a pragmatic builder!
Responsibilities
Design calibrate and optimize DC and microwave experiments in dilution cryostats equipped with state-of-the-art high-frequency control electronics
Develop scalable measurement and analysis workflows: well-documented reproducible and built to run with increasing autonomy
Sustain a close feedback loop with engineering teams to continuously improve device performance
Work closely with the theory team to connect experimental observations with physical models
Actively collaborate with the software team to execute our automation roadmap from experiment scheduling to data analysis as we scale toward a full QPU
Deepen our understanding of spin qubits in carbon nanotubes integrated within high-impedance cQED architectures
About you
You are driven by the scientific and engineering challenge of building a quantum computer and you want to contribute to a meaningful milestone in the field
You hold a PhD (or Masters with substantial research experience) in quantum physics or a closely related discipline
You have hands-on experience with quantum experiments DC transport microwave spectroscopy or both
You write Python fluently and use it autonomously to control experiments process data and build reusable tools
You hold yourself to high scientific standards and are equally motivated by results
You communicate clearly in English in writing and in conversation across technical and non-technical audiences
55000 - 62000 a year
This is the salary range for a mid-senior profile. That said we still encourage you to apply 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 compensation based on skills and experience.
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!)
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!
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.
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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