Alice Bob11mo ago

Senior Parametric Amplification Expert M/F

France·AubervilliersCDIsenior

OtherDevOps & InfrastructureExpert

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Overview

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.

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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'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!

As Senior Amplification Expert and part of the QECC (Qubit Environment Characterization & Control), you will oversee to the design, selection and optimization of the qubit readout chain used in our Quantum Processor Unit.

You will be in charge of : specifying, selecting, characterizing and improving the amplification chain used in our current chips and in our Lithium product. Study, prepare and develop the solution for future large chips (2027+)

Your expertise in Amplification systems will directly contribute to our culture of technical excellence and innovation, shaping the future of quantum computing. As part of the team you will help and support your colleagues focusing on characterization and instrumentation. You will also be the relay for amplification chain and readout with other teams inside A&B.

Upstream studies & project development:

Study the problematics linked to the readout and amplification chain and develop appropriate solutions. This may include testing and screening new components, optimizing TWPA calibration, developing building blocks for scale-up (such as multiplexing and integration strategies), and contributing to the design of front-end and baseband control electronics, signal generation using FPGAs or ASICs.

Define and document the specifications of your projects and proofs of concept (PoCs), ensuring alignment with your manager on feasibility, timeline, and budget.

Organize, coordinate, and manage projects to ensure their successful execution and delivery.

Testing, Validation & industrialization:

Propose and help to implement a testing environment for your projects

Lead the tests and measurement, with the help of instrumentation and software engineers

Push the TRL validations up to the requested level by the Product delivery cycle

Ensure the transfer of developed building blocks to the operating teams

Identify, troubleshoot, and resolve technical issues related to the he test chip, cryo environment, or instrumentation / control electronics.
Implement root cause analysis process if needed

Conduct technology watch on the state of the art in amplification devices and the scale-up of amplification chains, identifying emerging technologies and assessing their relevance for the company's objectives.
Define and maintain a technological roadmap for the amplification chain, leveraging both external partnerships and internal developments where appropriate. Ensure close alignment with the design authority so that the roadmap remains consistent with the company's overall technology strategy.
Foster and maintain collaborations with academic and industrial partners by participating in national and international workshops and conferences, in line with the company's budget, conference plan, and the team's priorities and organization.

Work closely with other teams to ensure the seamless integration of our components in our hardware and software set-up.
Organize regularly internal workshops to the rest of the team to popularize technical knowledge to other team members

Ensure all design processes, test results, and system configurations are thoroughly documented.
Provide regular updates and reports on your projects progress and timelines.

Master’s or PhD degree in Quantum Experimental Physics, EEE, or related field.

7+ years of experience of experimental work in quantum mechanics, preferably in the field of superconducting quantum circuits and amplification.

Excellent communication and teamwork skills, with a proactive and positive attitude.

Experience in software programming (Python)

Experience of working with electrical test equipment (oscilloscope, VNA, spectrum analyzer, multimeter, etc.)

Ability to collaborate effectively with multidisciplinary teams, including software engineers, physicists, and hardware suppliers

Business proficiency in English is mandatory

Nice to have: In-depth knowledge of RF systems Scientific

Screening Call with Alexandra Talent Acquisition Specialist (30 min)

Hiring Manager Interview with clément (45 min)

Technical Interview/Presentation with the Team (90 min)

Leadership and Fit Interview (60 min)

Benefits:

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

- Subsidized membership with Urban Sports Club

- Mental health support with moka.care

- 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

- French language courses covered by the company for those interested

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 of 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.