Senior Software Engineer - Optimisation

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 Performance Optimization team is a unique hybrid of physicists and ML engineers improving the quality, speed and reliability of the quantum chip lifecycle, from chip design to optimal error correction.
As a Senior Software Engineer at Alice & Bob, you will serve as the architectural anchor for the team, building the robust software ecosystem required to scale quantum innovations from proof-of-concept to mission-critical production systems.
Your impact extends beyond individual contributions; you will raise the engineering bar across the organization by designing scalable frameworks, enforcing rigorous best practices, and acting as the primary liaison between our research-driven initiatives and the broader software engineering team. In this role, you aren't just writing code—you are architecting the foundational systems that will define the future of fault-tolerant quantum computing.