The Role
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:
As an intern in the Compilation team, you will work designing a variant of ZX-calculus adapted to the natural gate set provided by the Cat + Repetition + LDPC code, based on joint X measurements and local transversal CNOT.
Responsibilities:
- Design a new ZX-like graphical quantum computing representation
- Study the specificities of such representations
- Apply graphical quantum computing to program Alice & Bob's QPU
Requirements:
- You are currently enrolled in a relevant degree at the Master’s level,and looking for a 4-6 month internship (ideally from May-September 2025)
- You have taken classes on quantum mechanics and quantum computing
- You have prior experience coding in Python and/or a compiled language (C/C++, Rust
We're also looking for:
- A curious and pragmatic individual with a proactive approach and willingness to take initiative.
- A person who is comfortable navigating an open problem with many ramifications.
- Motivation to be part of a fast-growing startup in a cutting-edge environment.
- Good communication skills in English.
Benefits:
- 1 day off per month
- Meal Vouchers with Swile
- 50% Navigo reimbursement
Recruitment Process:
- Hiring Manager Interview with Elie (45 min)
- Technical Interview/Presentation with the Team (60 min)
- Fit Interview (45 min)
- Reference Check
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.
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The Company
What We Do
Founded in 2020, Alice & Bob secured $30 M funding in Series A.
Today, we're recognized as one of the leaders in Quantum Computing.
Our cat qubits are error corrected by design, reducing hardware requirements by up to 200 times compared to other platforms enabling fault-tolerant quantum computing at scale.
Our headquarters is located in Paris, with offices in Boston, MA.
We are 80+ smart and dedicated innovators, coming from 17+ countries and growing by the day. We are committed to one mission: build a useful quantum computer.
Check open positions: bit.ly/joinusatAB
