Senior Foundry Test Engineer

PsiQuantum; Palo Alto (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

PsiQuantum in Palo Alto is looking for a professional focusing on foundry-level optical and electrical testing. You will improve system throughput, work collaboratively with vendors and teams to enhance testing capabilities, and analyze test data across facilities. Ideal candidates should have a BS degree (PhD preferred) and over 5 years of experience in wafer-level testing, data analysis, and troubleshooting optical/system-level issues. Programming skills in Python or SQL are highly beneficial.

Qualifications

• 5+ years of experience in wafer level photonic testing or characterization.
• Experience working with R&D and NPI environments.
• Understanding the impact of various process variances on measurement.

Responsibilities

• Improve system throughput and capabilities for electrical and optical tests.
• Work with foundry and vendor teams to enhance throughput.
• Analyze test data and support recipe work for remote tools.

Skills

Wafer level photonic test

Data analysis

Python/sql/other programming

Troubleshoot optical and system level problems

Experience with engineers and technologists

Education

BS minimum, PhD preferred

Job description

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.

Job Summary

This role will focus on supporting foundry level optical and electrical testing, including end of line tests, in‑line test development, and cross‑facility matching.

Responsibilities

• Improve system throughput and capabilities for electrical and optical test.
• Work with foundry and vendor teams to improve throughput and capability.
• Work with foundry development teams on test data analysis and test improvement, including sampling and cross‑facility matching.
• This job will include work on data analysis and recipe support for remote tools, including tools on multiple sites. A high priority is placed on the ability to work with a large, disparate team with a high degree of independence.

Experience / Qualifications

• BS minimum, PhD preferred.
• 5+ years of experience in:
  • Wafer level photonic test or characterization.
  • Fiber and FAU based high‑speed testing.
  • Data analysis.
  • Ability to troubleshoot optical and system level problems.
  • Python/sql/other programming is highly beneficial.
  • Experience working with engineers and technologists in R&D and NPI environments.
  • Experience with fab process flows and understanding the impact of various process variance on measurement.

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 [e-mail].