Silicon Photonics Design Engineer

Job Summary

We are seeking a creative and innovative Silicon Photonics Design Engineer to help push the boundaries of high-performance fiber-to-chip coupling for quantum photonic integrated circuits. This role sits at the intersection of device physics, packaging, and experimental validation, and offers ownership across the full development cycle – from concept and simulation to tapeout support, testing, and model closure.

The ideal candidate is an all‑rounder with strong fundamentals in integrated photonics, theoretical and practical knowledge of fiber‑chip coupling, and the ability to translate experimental results into clear, data-driven design improvements. You will collaborate closely with photonic design, foundry, packaging, and test teams to deliver robust packaging solutions for next‑generation quantum hardware.

• Design, model, and analyze novel fiber-chip coupling concepts suitable for large‑scale quantum computing systems.
• Own coupling device development across the full lifecycle, including simulation, layout, experiment design, data analysis, and model closure.
• Contribute to photonic tapeouts, including hands‑on layout, DOE definition, and coordination with cross‑functional stakeholders.
• Collaborate with test engineers to plan and execute automated, high‑volume measurements, and develop new test methodologies as needed.
• Analyze measurement data to identify performance trends, limitations, and optimization opportunities, and clearly communicate results to diverse technical audiences.
• Work closely with foundry, packaging, and test teams to validate, screen, and continuously improve fiber-chip coupling performance.

• PhD or equivalent degree in Electrical Engineering, Physics, Materials Science, or a closely related field.

• ~5 years of relevant industrial or academic research experience in integrated photonics.

• Strong computational and analytical skills applied to photonic device design and performance evaluation.
• In-depth understanding of photonic devices, performance metrics, and experimental characterization techniques.
• Demonstrated expertise in fiber‑chip coupling concepts and optical packaging.
• Proficiency in Python for scientific computing and automation (e.g., Num Py, Sci Py, Matplotlib, Pandas).
• Experience with commercial photonic and electromagnetic simulation tools (e.g., Lumerical, Tidy3D).
• Photonic layout experience using tools such as IPKISS, gdsfactory, or equivalent.
• Working proficiency in software engineering best practices, including version control and modular, maintainable code.
• Excellent written and verbal communication skills, with the ability to collaborate effectively across technical and non‑technical teams.
• Hands‑on experience with photonic packaging and assembly.
• Familiarity with integrated photonics manufacturing processes.
• Exposure to high-performance scientific computing.

You thrive in a fast‑paced, collaborative startup environment, enjoy solving open‑ended technical problems, and bring a thoughtful, detail‑oriented approach to engineering challenges.

Psi Quantum provides equal employment opportunity for all applicants and employees. Psi Quantum 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:

Psi Quantum will only reach out to you using an official Psi Quantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to

U.S. Base Pay Range: $130,000—$145,000 USD

Bay Area Pay Range: $145,000—$165,000 USD