Quantum Engineer

Quobly; Grenoble; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Transport subsidy (Public transport)

Conference opportunities

Job summary

Quobly is advancing universal quantum processors in Grenoble, seeking a researcher to join the Quantum Measurement Team. You will focus on high-fidelity operations for QPU devices based on semiconductor spin qubits using FD-SOI technology.

The role blends hands-on hardware, software interfacing, and rigorous data analysis. As an early-stage team member, you will shape the roadmap, collaborate across disciplines, and present results at international conferences while enjoying a dynamic,

Qualifications

• PhD in Physics, Engineering, or related field or equivalent industry experience.
• Strong understanding of semiconductor spin qubits.
• Experience in developing Python software to interface with hardware and analyze data.
• Excellent verbal and written communication skills.

Responsibilities

• Build and perform calibration sequences to bring the quantum device to its operating point.
• Design and implement optimal control sequences to enable quantum operations.
• Characterize and benchmark the quantum processes to enable high fidelity operations on the QPU.

Skills

Spin qubits

Python

Verbal & written communication

Collaboration

Education

PhD in Physics or Engineering

Tools

RF electronics

Cryogenic systems

CMOS low-temperature physics

Version control & code review

Job description

What Awaits You Every Day At Quobly

Quobly aims to have a strong impact on society by providing cost-effective universal quantum processors to solve currently unsolvable problems.

Founded in 2022, Quobly is a fast-growing start-up located in Grenoble’s vibrant and multidisciplinary ecosystem. The company relies on the CNRS Neel Institute and CEA-Leti and benefits from the dynamic of strong links between research and industry.

Technical Challenges

As a vital member of the Quantum Measurement Team at Quobly, you will work on enabling high-fidelity quantum operations on our Quantum Processing Units (QPU) based on semiconductor spin qubits made using industrial FD-SOI technology.

Collaboration

You will work collaboratively with other teams to:

• Build and perform calibration sequences to bring the quantum device to its operating point.
• Design and implement optimal control sequences to enable quantum operations.
• Characterize and benchmark the quantum processes to enable high fidelity operations on the QPU.

We place a high emphasis on fostering creativity, encouraging diverse perspectives, promoting collaborative efforts, and embracing both agile problem-solving and dependable, consistent performance. Being an early-stage team, you will have the unique opportunity to shape our roadmap and contribute significantly to our endeavors.

You Are Special Because

• PhD in Physics, Engineering, or related fields, or equivalent industry experience.
• Good understanding of semiconductor spin qubits.
• Experience in developing software (python) to interface with hardware and for data analysis.
• Good verbal and written communication skills.

Nice to have

• Experience in coherent control, characterization, and benchmarking of spins in solid state systems or other qubit systems.
• Experience with collaborative software development (version control, code review, etc.) and knowledge of good practices.
• Familiarity with the use of RF electronics (AWG, MW signal generators, IQ mixers) and measurement techniques.
• Understanding of CMOS devices, particularly the physics at low temperatures.
• Experience with cryogenic systems, in particular dilution refrigerators.

If you feel you may lack some of the skills listed, we encourage you to apply nonetheless. We firmly believe that your experience, coupled with a willingness to learn and a sense of adventure, can truly make a difference.

Working at Quobly also means

• Working in Grenoble, home to some of the fastest-moving tech and industrial companies around, and a great base camp for a wide range of activities from outdoor and mountain sports to arts and culture.
• Grenoble offers an affordable lifestyle, ensuring you can plan for a comfortable future while advancing your career with us.
• The opportunity to develop in-demand skills alongside the best researchers in their fields.
• A collaborative work environment and a company culture where trust is paramount and where individual contributions are recognized.
• Presenting at international conferences to share our latest results.
• Work-life balance, with a standard package of 213 workdays per year.
• Work from home up to four days per week, depending on the position.
• Employer contribution to public transportation (75% covered) passes and human-powered mobility solutions.