Senior Optical Packaging 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: The Senior Optical Packaging Engineer is responsible for developing & implementing a high-performance & robust fiber-to-chip package and a scalable packaging process for optical systems comprised of optical fibers attached to a variety of chip-based photonic integrated circuits. Responsibilities: • Develop an optical package and fiber-to-chip alignment scheme that allows for high alignment accuracy and scalable assembly. • Help develop packaging prototypes & scalable fiber-to-chip packaging flows, NPI.Review packaging design BOMs, work with supply chain on procuring parts needed for assembly. • Establish and update version-controlled DFM requirements and feed back to packaging design group. • Design, execute, summarize and analyze experiments & process trend studies to improve the performance and reliability of optical packaged assemblies. • Work with manufacturing group and vendors on transferring & scaling packaging designs and processes based on successful prototypes. • Advise manufacturing group and vendors on setup of high-throughput packaging assembly lines. • Work with external vendors and suppliers to source required materials and provide feedback on evolving requirements. Experience/Qualifications: • Master’s Degree or above in Engineering, Physics or Material Science. • 10+ years of experience with/at semiconductor company or supplier working on PIC packaging design, qualification & multi-chip assemblies. • 5+ years of experience working with optical fibers, optical measurements. • 5+ years of work experience with advanced semiconductor packaging OSAT (Outsourced Semiconductor Assembly & Test) and/or EOL vendors. • 5+ years of experience with semiconductor company or supplier working on FAU / optical connector to chip attachment. • Experience with fiber attach tooling & process/flow development and optical data analysis. • Experience with FA and 8D failure resolution techniques. • Experience with developing metrics for yield and quality management, including reliability and yield based on optical and mechanical performance. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. 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 candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $160,000—$180,000 USD Bay Area Pay Range $183,000—$200,000 USD