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We are looking for a Quantum Engineering Intern to help prototype our quantum wiring product. The role involves contributing to the first versions of our simulation and measurement software, assisting in the assembly of a cryogenic quantum measurement setup, and carrying out thermal and quantum characterizations of our superconducting wiring prototypes. This internship is highly hands-on, spanning both software development and experimental physics - you will work directly with hardware, instrumentation, and code to automate RF designs, analyze physical data, and validate and iterate on our core technology blocks.
About Isentroniq
At Isentroniq, we are building the future of computing - not in theory, but in hardware. We enable quantum computing at scale by developing superconducting circuit solutions that increase qubit count by more than 100x at fixed cost and infrastructure size.
We share knowledge openly, challenge ideas constructively, and stay focused on what matters. Our values - gritty ambition with humility, radical candor, surgical audacity, and self-accountable teamwork - are at the core of how we work and grow.
If you're passionate about transformative innovation and ready to build what quantum needs to go further, join us.
Key Responsibilities
Build a quantum wiring simulation demonstrator: Develop software to virtualize a cryostat cabling scheme. This will allow us to simulate cryogenic quantum wiring networks and evaluate overall system performance.
Leverage qubits to characterize quantum performance: Perform and analyze measurements using superconducting qubits as metrological tools. You will characterize microwave line temperatures in the millikelvin regime and quasiparticle tunneling rates, both of which are key factors limiting superconducting QPU performance.
Automate RF design: Implement an automated coding system to quickly translate wiring innovations into actual microwave designs, enabling rapid testing and prototyping.
Who you are
We’re looking for a talented and passionate student, eager to learn and do hands-on experimental work and programming for quantum systems. You have an engineering mindset and love seeing ideas turn into working demos and products rapidly.
Key Qualifications
A Masters in quantum physics, with knowledge in quantum computing.
Python coding skills to build a new wiring simulation class.
Strong background in linear algebra. It is the heart of Quantum physics and microwave engineering. Two essential bits to build a quantum wiring simulator.
Communication proficiency in English. Your supervisor will be a world class quantum engineer but might not speak French.
Personal Attributes
You are autonomous, ambitious, and organized.
You are a hands-on builder, comfortable starting from scratch and willing to own things end-to-end - setups, scripts, purchases, processes.
You communicate openly and directly: you welcome pushback on your ideas and are candid about both wins and mistakes.
You are eager to learn and grow. You see competing approaches as a feature, not a threat, and draw strength from collaboration.
You thrive under high expectations, pushing for breakthroughs rather than settling for good enough.
What We Offer
A unique opportunity to participate to the origin of a cutting-edge start-up.
Work with and learn from world-class talents
A collaborative, mission-driven culture with a focus on personal and professional growth.
Job Type
Internship (4-6 months)
Location
Saint-Germain-en-Laye, France
Start Date
Q3 2026
Join us making quantum computing happen.
Please send your CV and a cover letter outlining your relevant experience and motivation.
Applications will be reviewed on a rolling basis, so we encourage early submissions.
