Test and Characterization Engineer, Alice & Bob
Office located in Aubervilliers
Fault-tolerant quantum computing developer
Be an early applicant
Fault-tolerant quantum computing developer
101-200 employees
Be an early applicant
Office located in Aubervilliers
101-200 employees
Company mission
To create a future where humans play by the same rules as nature.
Role
Who you are
- Master’s degree or Ph.D. in Physics, Electrical Engineering, Materials Science, or a related field
- 3+ years of hands-on experience with device testing, electrical measurements, or semiconductor/metrology equipment
- Familiarity with superconducting devices or cryogenic measurements is a strong plus
- Proficiency with data acquisition systems, lab instrumentation, and analysis tools (e.g., LabVIEW, Python, MATLAB, JMP)
- Strong problem-solving mindset, analytical rigor, and attention to detail
- Ability to work collaboratively in a fast-paced, cross-disciplinary environment
- Languages: Proficiency in French, professional English
What the job involves
- As a Test & Characterization Engineer within the Nanofabrication Backend Team, you will play a critical role in validating our fabrication processes, ensuring data reliability, and developing innovative testing methodologies for superconducting qubits. You will contribute to improving wafer and chip performance through rigorous device testing, robust metrology, and collaborative problem-solving across teams
- Develop and optimize superconducting qubit testing methods at room and cryogenic temperatures, providing fast feedback to nanofabrication processes and ensuring efficient sorting of chips
- Collaborate with design and process integration teams to define and evaluate test structures that improve wafer- and chip-level performance
- Ensure accuracy and reliability of equipment metrology, data acquisition systems and inspection equipment
- Contribute to the identification, procurement, and validation of new test and metrology equipment for the backend nanofabrication line
- Implement continuous improvement plans to enhance testing efficiency, reliability, and throughput
- Perform device testing at room and cryogenic temperatures, ensuring accurate and reproducible results
- Participate in failure analysis and root cause investigations, helping to close the loop between design, fabrication, and performance
Our take
Creating top-tier quantum hardware, including qubits and control electronics, presents a significant hurdle for those pursuing high-power quantum computing. Various qubit technologies exist, each boasting unique advantages and drawbacks, with the most recent research in the sector involving the pursuit of a scalable, fault-tolerant qubit technology.
Joining this pursuit is Alice & Bob, a company specialising in "cat qubits". This technology, named for Schrodinger’s infamous cat, is able to reduce hardware requirements, promising fault-tolerant quantum computing at scale. With over 150 employees and pioneering experimental results, Alice & Bob has notable achievements, including the development of its 16-bit Helium 1 quantum processing unit.
Recognised for its groundbreaking work, Alice & Bob recently received a hefty innovation grant that will support its work moving forwards. Through projects like "Cat Factory," in collaboration with academic partners, the company aims to optimise quantum computation infrastructure, making it more cost-effective and market-ready and ultimately building "the first universal quantum computer”.
Kirsty
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 6 rounds)
Mar 2026
$3.9m
GRANT
Jan 2025
$112.2m
SERIES B
Total funding: $156.2m
Company HQ
Javel, Paris, France
Leadership
Théau Peronnin
(Co-Founder & CEO)Interned at Quantum Electronics Group as part of a Masters in Quantum Physics. Then did PhD study at Quantum Circuit Group before founding the company.
Raphaël Lescanne
(Co-Founder & CTO)Co-founded Alice & Bob in 2020 alongside Théau.
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