Sr. Epitaxy Equipment Engineer

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: Responsibilities: Maintain MBE tool, performing standard pm activities like but not limited to chamber bake, source refills, rebuild pumps, and disposal of hazardous wastes. Maintain PVD sputter tool, performing standard pm activities like but not limited to target and shield changes, pump rebuilds, and chamber cleans. Trouble shoot and repair process equipment in order to achieve uptime goals. Track and finger print machine parameters and develop long term maintenance plan Make fundamental improvements to the hardwared for improved performance and uptime. Support WaferFab equipment, Metrology tools and site Facilities. Follow written procedures and generate new documents. Communicate and interact with external suppliers/vendors as well as collaborate with internal process engineers Experience/Qualifications: 3-5 years of hands on experience in an semiconductor same environment. Strong mechanical aptitude Ability to wear SCBA/APAR, work in a strenuous environment and lift medium loads 26-50lbs. Work in a systematic and organized way. Clear and efficient communication and documentation skills Certified or able to obtain Hazmat Technician certification Comfortable with computers, and use of Microsoft applications like word and excel. Design/CAD experience Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com . We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidat