Scientific Software Engineer (Quantum Computing)

Location: Paris, France; hybrid workplace with a flexible remote policy of up to 40% per month

Company

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

What you will do

• Own and maintain the internal design backend API and qubit design framework, including testing, CI/CD, releases, documentation, and code quality.
• Develop parametric components and layout primitives in collaboration with chip designers.
• Extend and harden the export pipeline for electromagnetic and circuit simulation tools.
• Build automation for large-scale, hierarchical chip layouts with physical-design and scale-up engineers.
• Support internal users through onboarding, debugging, API design, and turning recurring issues into features.

Requirements

• 5+ years of professional Python development with strong software engineering fundamentals, including testing, packaging, versioning, CI/CD, and code review.
• Experience building and maintaining a library or framework used by other engineers, with clean and well-documented APIs.
• Experience with computational geometry or CAD/layout data, including GDSII, polygons, and transformations, or willingness to learn it quickly.
• Ability to work closely with hardware engineers and translate their needs into software.
• Fluent English and excellent written and verbal communication skills.

Nice to have

• Experience with gdstk, gdsfactory, KLayout, or other layout tooling.
• Familiarity with electromagnetic simulation tools such as HFSS/AEDT or Palace, or circuit simulators.
• Background in superconducting circuits, RF/microwave engineering, or semiconductor design automation (EDA).

Culture & Benefits

• Join a diverse team of 250+ people from more than 35 countries at an early-stage quantum-computing startup.
• Equity through a BSPCE plan and bonuses for contributing to core patents.
• Flexible remote work of up to 40% per month, 25 vacation days plus RTT, and French-law transportation support.
• Parental benefits, including crèche support or additional days off for caring for children under 12.
• Health coverage, mental-health support, meal vouchers, a stocked kitchen, subsidized sports membership, and French-language courses.

Hiring process

• Screening call, hiring manager interview, technical interview and presentation with the team, leadership team interview, fit interview, and reference check.