What are the responsibilities and job description for the Photonics Engineer position at PsiQuantum?
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
We're seeking an optical design expert who excels at translating complex device physics into clear, actionable technical reports and cross-team collaboration. This role is part of PsiQuantum's photonic circuits team, where you'll work on the photonic ICs that serve as the physical heart of our quantum computing systems. You'll take ownership of analyzing test data from thermal phase shifters across multiple silicon processes, generating comprehensive technical documentation, and serving as a key technical communicator between our design team and broader organization. This role is designed as hybrid, with regular in-person collaboration at one of our offices in Palo Alto, CA, Milpitas, CA, or Arlington, VA, plus the flexibility to work from home 2-3 days per week.
Responsibilities
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
$130,000—$145,000 USD
Bay Area Pay Range
$150,000—$170,000 USD
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
We're seeking an optical design expert who excels at translating complex device physics into clear, actionable technical reports and cross-team collaboration. This role is part of PsiQuantum's photonic circuits team, where you'll work on the photonic ICs that serve as the physical heart of our quantum computing systems. You'll take ownership of analyzing test data from thermal phase shifters across multiple silicon processes, generating comprehensive technical documentation, and serving as a key technical communicator between our design team and broader organization. This role is designed as hybrid, with regular in-person collaboration at one of our offices in Palo Alto, CA, Milpitas, CA, or Arlington, VA, plus the flexibility to work from home 2-3 days per week.
Responsibilities
- Collaborate with cross-functional teams to translate complex thermo-optical device behavior into actionable insights for product development and design optimization decisions.
- Support design iteration and improvement by identifying performance trends, failure modes, and optimization opportunities from device characterization data.
- Analyze test data from thermo-optical devices and generate comprehensive technical reports summarizing device performance, behavior, and key figures of merit.
- Create and maintain technical documentation for thermo-optical devices, ensuring clear communication across diverse technical audiences.
- Participate in technical discussions with layout engineers, foundry teams, and systems integration groups to ensure seamless handoff of design requirements and performance specifications.
- Advanced degree (MS/PhD) in Electrical Engineering, Applied Physics, or related field with 1-4 years of industry experience.
- Strong expertise in thermo-optical design principles, thermal phase shifters, and integrated photonic circuits.
- Demonstrated experience with data analysis and technical reporting, preferably using Python programming and Git/GitLab for version control.
- Excellent technical writing and communication skills, with ability to explain complex device physics concepts to diverse technical audiences.
- Experience working with silicon photonics processes and understanding device physics from design files and process documentation.
- Basic understanding of electrical design principles, particularly Joule heating mechanisms in resistive elements.
- Preferred: Awareness of mechanical design considerations, stress/strain analysis, or experience with suspended micro-scale structures.
- Thrives in fast-paced startup environments and enjoys cross-functional collaboration and problem-solving.
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
$130,000—$145,000 USD
Bay Area Pay Range
$150,000—$170,000 USD
Salary : $130,000 - $170,000