Hybrid Test and Characterization Engineer

at Alice & Bob

• Job title: Test and Characterization Engineer
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Postgraduate Degree
• Tech skills: Python
• Location requirements: Hybrid, Aubervilliers, France

About the role

• Test & Characterization Engineer developing superconducting qubit testing methodologies at Alice & Bob. Collaborating in a fast-paced team to improve chip performance and data reliability.

Responsibilities

• Develop and optimize superconducting qubit testing methods at room temperature, providing fast feedback to nanofabrication processes and ensuring efficient chip sorting.
• 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, closing 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: participate in our BSPCE equity plan
• Turn your ideas into patents – and receive competitive patent bonuses
• Flexible remote policy, up to 40% of the month remote
• Parental support plan including additional benefits such as daycare assistance and extra days off to care for children under 12
• Subsidized Urban Sports Club membership
• Mental health support through moka.care
• 25 days of vacation (as per French law) + RTT
• 50% coverage of transportation costs (as per French law), or an annual allowance for dedicated cyclists
• Competitive health insurance with Helium/Axa
• Meal vouchers via Swile, and access to a fully equipped, regularly stocked kitchen