Senior Scientific Software Engineer (Quantum Computing)

Location: Paris, France; hybrid workplace. Flexible remote work is available for up to 40% of the month.

Company

Alice & Bob is a French startup developing a universal, fault-tolerant quantum computer based on superconducting Schrödinger cat qubits.

What you will do

• Architect, implement, and optimize high-performance scientific software components and simulation kernels.
• Develop and evolve the simulation environment for integrating, orchestrating, and executing quantum chip simulations.
• Establish software quality, testing, code review, and maintainability best practices.
• Support simulation studies and execute scientific simulation pipelines.
• Promote simulation tools across the organization, gather user feedback, and contribute to the tooling roadmap.
• Collaborate with quantum scientists, researchers, and cross-functional colleagues.

Requirements

• PhD or Master’s degree in Applied Mathematics, Scientific Computing, Quantum Physics, or a related field.
• 5+ years of experience, including at least 2 years in an industrial environment.
• Professional proficiency in Python and JAX, with strong software engineering skills.
• Experience with Git/GitLab, CI/CD pipelines, automated testing, code review, and maintainable software practices.
• Experience with scientific computing ecosystems such as NumPy, SciPy, JAX, PETSc, or equivalent, and familiarity with CPU/GPU HPC environments.
• Hands-on experience running simulations or using scientific simulation software such as Ansys, COMSOL, or similar. Professional-level English, written and spoken, is required.

Nice to have

• Rust proficiency.
• Background in quantum physics or a related domain.
• Experience using LLM-powered tools in professional software engineering.
• Strong delivery, teamwork, communication, and documentation skills.

Culture & Benefits

• Work with a diverse team of 250+ people from more than 35 countries.
• BSPCE plan and direct IP compensation bonuses.
• 25 days of vacation plus RTT, parental support, and French language courses.
• Health coverage, mental health support, meal vouchers, and a stocked kitchen.
• Partial transportation cost coverage or a bicycle allowance.
• Subsidized Urban Sports Club membership.

Hiring process

• Screening call, hiring manager interview, technical team interview, leadership interview, and fit interview.
• Interview durations range from 30 to 60 minutes.