Scientific Software Engineer

Entangled Future; Paris; Hybrid; EUR 70,000 - 97,000; Full time

Benefits offered by this job

BSPCE plan

IP bonuses for core patents

Flexible remote up to 40%

Parental plan (crèche support)

25 days vacation + RTT

Transportation cost coverage

Health coverage

Meal vouchers

Job summary

Alice & Bob in Paris is seeking a Scientific Software Engineer to own the internal framework that turns a quantum circuit into a layout and sends it to EM and circuit simulators. You will expand the component library, ensure robustness, and build automation for large chip designs.

We value 5+ years of Python experience, strong API design, and collaboration with hardware engineers. The role offers flexible remote policy up to 40% and a comprehensive benefits package in a fast-growing quantum

Qualifications

• 5+ years of professional Python development.
• Strong fundamentals in testing, packaging, versioning, CI/CD.
• Experience building a library/framework used by engineers.

Responsibilities

• Own and maintain the internal design backend API and qubit design framework.
• Develop new parametric components and layout primitives with designers.
• Extend and harden the export pipeline to EM and circuit simulators.
• Build the automation layer for large-scale, hierarchical chip layouts.
• Support internal users: onboarding, debugging, API design, feature requests.

Skills

Python development

Software engineering fundamentals

CI/CD

English communication

Team collaboration

Computational geometry familiarity

Tools

gdstk

gdsfactory

KLayout

Job description

Scientific Software Engineer at Alice & Bob, Paris. A mid-level full time position in the Design & Implementation team, listed under software engineering.

We're a diverse team of 250+ brilliant minds from over 35 countries united by a single goal: to revolutionise computing with a practical fault-tolerant quantum machine. Are you ready to take on unprecedented challenges and contribute to revolutionising technology? Join us, and let's shape the future of quantum computing together!

About the Mission

Every chip Alice & Bob builds starts as Python code. As we scale from tens of qubits to thousands, our chip-design software becomes the backbone of the entire design pipeline, and it has to support chips that could never be drawn by hand.

About the Role

As a Scientific Software Engineer in the Design and Implementation team , you’ll own the internal framework our engineers use to turn a quantum circuit into a layout and send it to electromagnetic and circuit simulators. You’ll keep it robust and fast, grow its component library, and build the automation our layout and scale-up engineers need to design large chips.

Recruitment Process

• Screening Call with Grace, Talent Acquisition Specialist (30 min)
• Hiring Manager Interview with Felix (45 min)
• Technical Interview/Presentation with the Team (120 min)
• Leadership Team Interview (30 min)
• Fit Interview (45 min)
• Reference check

- Our success is your success: own it with our BSPCE plan

- Direct IP Compensation: Earn substantial bonuses for driving the core patents that define our quantum architecture.

- Flexible remote policy, up to 40 % a month

- A P arental plan including additional benefits such as crèche support or additional days-off to take care of under 12 years old children

- 25-day vacation policy (as per French law) + RTT

- Half of transportation cost coverage (as per French law), or yearly allowance for the die-hard bicycle users

- Competitive health coverage, with Alan.

- Meal vouchers with Swile, as well as access to a fully equipped and regularly stocked kitchen

Responsibilities

• Own and maintain the internal design backend API and qubit design framework: code quality, testing, CI, releases, documentation
• Develop new parametric components and layout primitives with the chip designers who use them
• Extend and harden the export pipeline to electromagnetic and circuit simulation tools
• Build the automation layer for large-scale, hierarchical chip layouts in close partnership with our physical-design and scale-up engineers
• Support internal users: onboarding, debugging, API design, and turning recurring pain points into features

Requirements

• 5+ years of professional Python development, with strong software engineering fundamentals: testing, packaging, versioning, CI/CD, code review
• Solid experience building and maintaining a library or framework used by other engineers, and a taste for clean, well-documented APIs
• Comfort with computational geometry or CAD/layout data (GDSII, polygons, transformations) — or eagerness to learn it fast
• Ability to work closely with hardware engineers and translate their needs into software
• Fluent English and excellent written and verbal communication skills
• Experience with gdstk, gdsfactory, KLayout, or other layout tooling
• Familiarity with electromagnetic simulation tools (HFSS/AEDT, Palace) or circuit simulators
• Background in superconducting circuits, RF/microwave engineering, or semiconductor design automation (EDA)