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Principal Laser Process Engineer

Diamond Foundry - San Jose, CA, United States - In-office - posted 2026-10-19

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Diamond Foundry is solving thermal limitations in AI & cloud compute, electric-car power electronics, and 5G/6G wireless by producing single-crystal diamond wafers. The company has achieved unicorn status while growing profitably, securing $515M in funding to execute a multi-billion-dollar expansion plan for green tech manufacturing that converts greenhouse gas into diamond wafers using zero-emission energy. As Principal Laser Process Engineer, you will optimize high-power ablative laser processes to deliver micron-precision dimensional modification of diamond at high yields and throughput. You will lead key projects focused on equipment and automation improvements to support scalable manufacturing, serving as a subject matter expert who oversees laser and related processes while optimizing process controls and data collection to drive continuous improvement. Your work will help revolutionize high-power ablative systems to create world-leading throughput and precision performance. This role involves significant technical leadership and process innovation in a fast-paced manufacturing environment. You will be responsible for rigorous experimentation, documentation, and data-driven process improvements that directly impact the company's ability to scale production of diamond wafers for next-generation semiconductor applications. The position includes physical requirements typical of manufacturing and engineering environments: extended periods of sitting, standing, walking, and fine manipulation; use of appropriate PPE; potential use of ladders or stairs; and ability to lift/carry and push/pull up to 50 pounds. REQUIREMENTS: - Advanced degree in Materials Science, Applied Physics (materials, laser, or optics focus), or Engineering with a minimum of 8+ years of relevant experience - Expertise with applying optical fundamentals, laser materials processing, and resolving technical problems in a fast-paced manufacturing environment - Experience in rigorous experimentation, documentation, and data-driven process improvements - Experience with mass production of diamond, semiconductors, and/or ceramics is a plus

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