Single Photon Source Lithography Engineer

Quandela is a global leader in quantum computing, designing, building, and delivering cutting-edge quantum solutions for research and industry. Its offerings include the most 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 About this position: Role Overview We are looking for a Single Photon Source Lithography Engineer to support the development, stabilization and industrialization of our semiconductor fabrication processes. At our current stage of maturity, this position combines advanced process development, hands-on R&D and manufacturing engineering. The Lithography Engineer will play a key role in bridging the gap between Advanced R&D and Production, transforming newly developed process building blocks into robust, repeatable and scalable manufacturing processes. The role will have a strong focus on in-situ localization of quantum dots (QDs) at cryogenic temperatures and laser lithography over the localized Qds with laser writing techniques. The successful candidate will work closely with R&D teams, fabrication engineers, equipment owners and cleanroom operators to improve process capability, reproducibility, yield and production throughput. This is a highly hands-on position requiring a strong understanding of semiconductor fabrication, rigorous experimental methodology and the ability to investigate complex interactions between process parameters and device performance. Key Responsibilities Process Development & Industrialization Develop, optimize and stabilize QD positioning and laser lithography process. Contribute to the development of GUIs and automation codes in the Python programming language. Contrinute to the development of fully-automated QD-positioning and litography tools. Validate and qualify new fabrication equipment and associated processes. Define process windows, recipes, operating conditions and acceptance criteria. Use structured experimentation, including Design of Experiments (DoE) where appropriate, to understand process sensitivities and optimize performance. Improve process repeatability, reproducibility, robustness and within-wafer / wafer-to-wafer homogeneity. Prepare processes and equipment for increasing wafer sizes, batch sizes and production volumes. R&D to Production Transfer Act as a key technical interface between Advanced R&D and Production. Convert R&D process building blocks into stable, documented and manufacturable processes. Assess manufacturability, scalability and process risks before transfer to production. Define qualification plans and acceptance criteria before releasing new or modified processes to production. Lead or contribute to Process Failure Mode and Effects Analysis (PFMEA) for critical fabrication steps, identifying potential failure modes, their effects on device performance and appropriate prevention and control measures. Translate PFMEA outcomes into process controls, monitoring plans, acceptance criteria, Control Plans and documentation. Support technology transfer through clear documentation, operator training and technical communication. Process Control & Yield Improvement Monitor and improve production process performance, yield and throughput. Establish regular process checks, controls and monitoring methodologies, including Statistical Process Control (SPC) where relevant. Detect process drifts, investig