1mo ago

Chip Design internship

France·ParisInternentry

OtherInternship

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Quick Summary

Key Responsibilities

Simulate and compare microwave designs, explore trade-offs, and investigate the relationship between predicted and measured performance. Help cycling the dilution refrigerator based on the experiment

Technical Tools

OtherInternship

Founded in 2020 and based in the heart of Paris, C12’s mission is to be at the center of one of the biggest technological breakthroughs of the century and change the course of history by building a universal quantum computer.

At C12, we believe that achieving a true breakthrough in quantum computing requires rethinking the fundamentals. That’s why our founders—deeply rooted in academic and engineering excellence—have chosen carbon nanotubes as the building blocks of our quantum processors. This ultra-pure material dramatically reduces error rates, boosts performance, and minimizes hardware overhead—key ingredients for scalable, fault-tolerant quantum computing. By crafting a unique approach that scales, we aim to revolutionize quantum computing just as silicon transformed classical computing.

Since our founding, we’ve raised over €25 million in funding, published 11 scientific papers, and secured 8 patents. Today, our fast-growing team of 80+, including 25 PhDs, has over 26 nationalities represented. We have our own cutting-edge lab spaces in Paris' historic Panthéon district, where scientists, engineers, and innovators work side-by-side to tackle some of the most exciting technical challenges of our time.

If you're passionate about shaping the future of quantum technology and want to make a real impact, C12 offers a unique environment to grow, learn, and innovate.

The Chip Design Team works at the heart of this development. It provides a safe microwave environment for the quantum processor – the qubit – as well as pathways to interact with qubit. We work in collaboration with other teams, providing them validation methods and data for the same for their experiments in improving qubit quality.

C12 Quantum Electronics is looking for an intern to join the Chip Design team and contribute across the development process, from RF structure design and simulation to experimental measurements and data analysis of the said structures. Working closely with the team, you will investigate how on-chip microwave designs translate into measured performance of frequency targeting, quality factor and interaction strengths and how these findings support the work of other teams.

The role includes performing experiment-specific microwave measurements at millikelvin temperatures, with hands-on involvement in setting up the dilution refrigerator and measurement equipment, and analyzing the resulting data - including maintaining and improving the (python) code for data analysis and visualization. By connecting design work with experimental results, you will gain a practical understanding of how superconducting chip design contributes to a quantum compter’s broader development efforts while working collaboratively with engineers and researchers across teams.

Key responsibilities:

Simulate and compare microwave designs, explore trade-offs, and investigate the relationship between predicted and measured performance.

Help cycling the dilution refrigerator based on the experiment requirements, and coordinate the measurement equipment as needed.

Carry out S21 measurements and log data.

Visualize experimental data to process and analyze, extract parameters such as frequencies and quality factors, and tie these metrics to component design and inform further design work.

Document code, simulation methods, experimental procedures, and results clearly to support reproducibility and knowledge sharing.

Collaborate with engineers and researchers across teams, communicating findings and relating them to shared technical goals.

You are completing or have recently completed a master’s degree in physics, engineering, or a related field. You are interested in quantum technologies and enjoy the process of conducting experiments from start to finish.

You speak English fluently.

You have a strong background in quantum physics and have taken courses on Quantum Electromagnetism. Exposure to RF/microwave experimentation is a strong plus.

You have Python programming skills.

You have an interest in experimental work, including setting up measurement equipment, and troubleshooting.

You have a collaborative mindset, with the willingness to communicate your findings, ask questions, and work constructively with colleagues from different technical backgrounds.

You are curious about quantum experimentation, and are willing to learn new methods and work in a start-up environment.

Previous exposure to circuit or electromagnetic simulation, electronic measurements, quantum devices, or cryogenic systems would be a plus, but is not required.

What We Offer

~1 min read

✓€1,400

✓Two incredible office spaces in the heart of Paris (both next to the famous Panthéon!)

✓Swile meal vouchers

✓Vibrant office culture (team lunches, offsite events, Friday breakfasts..)

✓Mental health support with moka.care

✓You want to contribute to achieving landmark results in quantum computing, making a difference in the emerging quantum technologies

✓You want to work within a 80+ people team with various backgrounds in nanofabrication, quantum electronics, and carbon nanotube science to create a revolutionary quantum computing processor

✓You want to thrive in an exceptional scientific environment with several industrial and academic partners

✓You share our values (excellence, scientific integrity, diversity, curiosity, and care) and want to help us define our product-focused culture and ambition to accelerate