3D Integration Engineer

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 90 people, including over 20 PhDs, has over 20 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.

We are seeking a 3D Integration Engineer to develop advanced packaging and heterogeneous-integration technologies for scalable quantum-computing hardware.

You will design and optimize interconnects between quantum devices, control electronics, photonic components, and cryogenic systems while maintaining signal integrity, thermal performance and reliability.

You will develop 2.5D and 3D integration architectures for quantum processors and supporting electronics.

You will design interposers, through-silicon vias, micro-bumps, hybrid bonds, redistribution layers, and chiplet interfaces.

You will integrate our QPU with other chip modality with cryogenic CMOS, RF/microwave circuitry, photonics, MEMS, and packaging substrates.

You will perform electrical, electromagnetic, mechanical, and thermal simulations.

You will define fabrication flows and design rules with foundries, packaging partners, and internal process teams.

You will develop test vehicles and perform experimental measurements on those fabricated devices, analyze experimental data to improve yield and performance.

You will document designs, process specifications, qualification results, and technology roadmaps.

You will collaborate with quantum-device, circuit-design, cryogenic, materials, manufacturing, and systems teams.

You want to have a key role in a growing startup with challenges at the frontier of the technology.

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 60-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.