Alice & Bob is developing the first universal, fault-tolerant quantum computer to solve the world’s hardest problems.
The quantum computer we envision building is based on a new kind of superconducting qubit: the Schrödinger cat qubit. In comparison to other superconducting platforms, cat qubits have the astonishing ability to implement quantum error correction autonomously!
We are at the forefront of the quantum race, competing with tech giants such as Google or IBM, and we are growing fast after securing €100 million of funding in 2025 to develop our unique technology.
Currently 100+ and counting, between physicists, PhD students, engineers and experienced business professionals, we are united to reach our ambitious goal. Are you a quantum pioneer? Join us on a mission to reshape the future!
About the role:
The EDA Research team is developing the tools that predict the performance of our QPU designs. These tools are essential in the chip design process at Alice & Bob. Our predictions are currently computed using a pipeline of simulation tools, including FEM software for electromagnetic problems, frameworks for approximations of quantum problems, and efficient numerical solvers.
As an intern on this team, your mission will be to will be to develop and validate a simulation method to compute energy participation ratios of our superconducting chips to better predict qubit lifetimes.
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Responsibilities:
- Review and analyze existing approaches: Study state-of-the-art methods used to estimate energy participation ratios in superconducting circuits.
- Develop a simulation methodology: Develop a framework to simulate energy participation ratios from chip geometries and material properties, using conventional FEM tools like Ansys HFSS or open-source equivalents.
- Validate and benchmark the method:
Compare simulated participation ratios with a reference data.
Characterize how participation evolves with changes in design geometry.
Optional: design and fabricate a proper chip for loss tangent extraction and qubit lifetime prediction.
- Document and present results: Report the theoretical background, methodology and validation results.
Requirements:
- You are currently enrolled in a Bachelor or Master's degree in Engineering or Physics.
- Available for a 5-6 months internship (ideally from January 2026).
- Prior knowledge of electromagnetic field theory.
- Experience with electromagnetic solvers (e.g: Ansys).
- Experience with Python.
- Professional-level English proficiency, both written and spoken.
We're also looking for:
- Being familiar with superconducting qubits is a bonus.
Benefits:
- 1 day off per month
- Meal Vouchers with Swile
- 50% Navigo reimbursement
Recruitment Process:
- Hiring Manager + Technical Interview with Salim (60 min)
- Fit Interview (30 min)
- Reference Check
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Research shows that women might feel hesitant to apply for this job if they don't match 100% of the job requirements listed. This list is a guide, and we'd love to receive your application even if you think you're only a partial match. We are looking to build teams that innovate, not just tick boxes on a job spec.
You will join of one of the most innovative startups in France at an early stage, to be part of a passionate and friendly team on its mission to build the first universal quantum computer!
We love to share and learn from one another, so you will be certain to innovate, develop new ideas, and have the space to grow.
