Senior Parametric Amplification Expert M/F, Aubervilliers

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

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.

Responsibilities

Upstream studies&project development: Study the problematics linked to the readout and amplification chain to address them. This could be linked for example to: test and screening of new components, TWPAs calibration optimization, building blocks for scale‑up (multiplexing, test of integration strategies), control electronics front end / baseband / signal generation with FGPAs / ASICs.

Describe and detail the specification of your projects/POC. Align with your manager for the feasibility, timeline and budget.

Organize and manage projects.

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.

Troubleshooting&Optimization: Identify, troubleshoot, and resolve technical issues related to the test chip, cryo environment, or instrumentation / control electronics, implement root cause analysis process if needed.

Establish long term roadmap on the amplification chain: technology watch on state of the art for amplification devices and scale up of amplification chains, define a technological roadmap (which can rely on external partners + internal development if applicable) and ensure a smooth discussion with the design authority to make it consistent with the company roadmap.

Maintain exchange with academic and industrial partners by attending national and international workshops and conferences (in accordance with the budget and conference plan defined at the company level, as well as the team’s organization and plans).

Collaboration with Cross‑Functional Teams&partners: Work closely with other teams to ensure the seamless integration of our components in our hardware and software set‑up, organise regularly internal workshops to popularise technical knowledge to other team members.

Documentation&Reporting: Ensure all design processes, test results, and system configurations are thoroughly documented, provide regular updates and reports on your projects progress and timelines.

Requirements

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 and scientific writing.

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.

Subsidised 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 Helium/Axa.

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 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.

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