Photonics Packaging & Cryogenic Integration R&D Engineer

Quandela is a global leader in quantum computing, designing, building, and delivering cutting-edge quantum solutions for research and industry. Its offerings include a very energy-efficient quantum computers for data centers, full-stack quantum computing solutions accessible via the cloud, and algorithm access services for academic and industrial customers. Following a pragmatic, step-by-step roadmap, Quandela has been deploying industrial-grade systems since 2023 while developing future generations of fault-tolerant quantum computers capable of scaling through the integration of thousands of photonic components. Quandela is committed to making quantum computing accessible to all in order to address the most complex industrial and societal challenges. Learn more at: Quandela | Leading Photonic Quantum Computing Solutions Description of the Team/Project We are looking for a Photonics Packaging & Cryogenic Integration Engineer to contribute to the development and industrialization of our photonic quantum systems. You will work on the integration of single-photon sources, photonic integrated circuits and optical/electromechanical assemblies , with a strong focus on miniaturization, automation and operation under cryogenic conditions. This is a highly hands-on role at the intersection of photonics, electronics, mechanics, automation and experimental physics . You will contribute across the full development cycle: design, prototyping, assembly, testing, optimization and transfer toward industrial-scale production . Your Key Responsibilities: Design and develop packaging and integration solutions for photonic and quantum devices. Integrate single-photon sources, photonic integrated circuits and optical components into complete systems. Develop and optimize optical coupling strategies, including fiber coupling and direct chip-to-chip integration. Design, build and assemble precision positioning and alignment systems, including nano-positioning stages and multi-axis platforms. Develop experimental setups operating under cryogenic conditions, typically in the 2–4 K range . Design mechanical parts and assemblies using CAD tools. Contribute to electronics development, including PCB design, instrumentation and control systems. Automate alignment, test and characterization processes using Python, C++, Rust or similar programming languages. Work with microcontrollers, FPGA-based systems or other hardware-control architectures when relevant. Build, test and iterate...

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