Test and Characterization Engineer en Alice-bob

While initially running nanofabrication processes in academic cleanrooms, Alice&Bob is stepping up by building its own prototyping cleanroom in Ile de France (construction started, start of operation beginning 2026). This facility will allow to:- Speed up the design iteration cycle, by reducing the leadtime of chip fabrication- Improve the capability of Alice&Bob nanofabrication processes (improving performance and mastering 3D integration)As part of the Quantum Hardware department, the “Nanofabrication Backend” team will play a pivotal role in operating and developing the “backend of line” used for manufacturing Alice&Bob Quantum Processor. Technically, this encompasses:- Room temperature electrical testing- Dicing- Optical inspection- Wirebonding of chips inside sample holdersThe team is in charge of:- operating the tools for the regular delivery of test chips- developing/improving new processes (for better quality/leadtime/chip selection…)- overseeing its own tools (daily check of the tools, ensuring maintenance schedules are followed, 1 level of troubleshooting)- selection, installation and qualification of new toolsAs 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.

Responsibilities:

Develop and optimize superconducting qubit testing methods at room temperature, 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 temperature, ensuring accurate and reproducible results.

Participate in failure analysis and root cause investigations, helping to close the loop between design, fabrication, and performance.

Requirements:

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.

Benefits:

Our success is your success : own it with our BSPCE plan

Turn your ideas into patents – and (competitive) patent bonuses

Flexible remote policy, up to 40 % a month

A Parental plan including additional benefits such as crèche support or additional days-off to take care of under 12 years old children

Subsidized membership with Urban Sports Club

Mental health support with moka.care

25-day vacation policy (as per French law) + RTT

Half of transportation cost coverage (as per French law), or yearly allowance for the die-hard bicycle users

Competitive health coverage, with Helium/Axa

Meal vouchers with Swile, as well as access to a fully equipped and regularly stocked kitchen

Recruitment process:

Screening Call with Giusy, Talent Acquisition Specialist (30 min)

Hiring Manager Interview with the Hiring Manager (45 min)

Technical Interview/Presentation with the Team (60 min)

Leadership and Fit Interview (45 min)

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