Staff Quantum Experimentalist

Limelight Health; Paris; Sur place; EUR 80 000 - 110 000; Plein temps

Résumé du poste

A leading quantum computing company in Paris is seeking a Staff Quantum Experimentalist to drive efforts in automatic calibration and optimize quantum processors. Ideal candidates have over 6 years of experience in superconducting circuits and possess strong microwave control skills. This position offers a competitive salary, 25-day vacation policy, and a flexible remote work opportunity.

Prestations

25-day vacation policy + RTT

Half of transportation cost coverage

Competitive health benefits

Meal vouchers

Parental benefits with crèche support

Flexible remote policy

Language courses

Mental health support

Subsidized membership with Urban Sports Club

Qualifications

• 6+ years of experience in superconducting circuits with deep knowledge of the field.
• Experience in microwave control and measurement of superconducting circuits.
• Ability to analyze data and compare to theory or numerical simulations.

Responsabilités

• Define and optimize processor automatic calibration graphs.
• Drive new gate measurements and calibration methods from idea to integration.
• Apply control methods of superconducting circuits to cat qubits.
• Contribute to knowledgebase and train experimentalists.
• Manage external collaborations.

Connaissances

Microwave control and measurement of superconducting circuits

Data analysis and comparison to theory or numerical simulations

Quantum gate design and benchmarking

Quantum error correction protocols

Scientific Writing

Description du poste

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!

The Firmware department responsibility is to develop the stack controlling our Quantum Processing Unit (QPU), from directly interacting with the chip to running quantum algorithms. As a Staff Quantum Experimentalist, you will play a key role in designing and optimizing the calibrations of the QPU. Your role will be to drive the efforts to automatize the chip calibrations, to characterize and optimize the gates performance, and to advance the knowledge of large cat-qubit processors, including using numerical methods. Your work will refine the technological roadmap of the company, you will have the opportunity to work together with top-level teams internally, mentor and train junior scientists, and represent scientific research of the company externally.

Responsibilities:

• Define and optimize the processor automatic calibration graphs
• Drive new gate measurements and calibration methods from idea to integration in the cat qubit quantum processors
• Apply state-of-the-art methods of control of superconducting circuits to cat qubits
• Contribute to the expansion of the knowledgebase of Alice & Bob and the continuous training of experimentalists
• Manage external collaborations

Requirements:

• 6+ years of experience in the field of superconducting circuits, having a deep knowledge of the field
• Microwave control and measurement of superconducting circuits
• Data analysis and comparison to theory or numerical simulations
• Quantum gate design and benchmarking
• Quantum error correction protocols
• Scientific Writing

Benefits:

• 25-day vacation policy (as per French law) + RTT
• Half of transportation cost coverage (as per French law), or yearly allowance for bike enthusiasts
• Competitive health benefits with Helium/AXA
• Meal vouchers with Swile, as well as access to a fully equipped kitchen
• Parental benefits with crèche support
• Flexible remote policy, up to 40 % a month
• Language courses covered by the company
• Mental health support with moka.care
• Subsidized membership with Urban Sports Club

Recruitment Process:

• Screening Call with Giusy, Talent Acquisition Specialist (30 min)
• Hiring Manager Interview with the Hiring Manager (45 min)
• Technical Interview/Presentation with the Team (60 min)
• Leadership and Fit Interview (45 min)

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 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.