Senior Integration & Test Engineer (Optomechanical, Thermal)

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 are looking for an Integration & Test Engineer to join the Packaging Design team at PsiQuantum.  You’ll join a team responsible for the design, development and integration of photonics and optoelectronics packaging. 

The Senior Integration & Test Engineer will lead the evaluation of packaging designs. This role is focused on the qualification & acceptance testing of photonics chips, electronics, and integrated subassemblies.   This includes test design & execution, data processing, material characterization, and root cause investigative work. 

Responsibilities:

• Design & execute tests using DoE and other statistical analysis techniques, from component level to integrated subassemblies.
• Perform hands-on thermal, optomechanical, and materials testing in both the lab and real-world environments.
• Interpret optical, thermal, electrical, and mechanical metrics and evaluate design options.
• Validate FEA models.
• Guide assembly process development to ensure alignment to performance requirements.
• Conduct reliability testing, root cause analysis, and corrective actions for prototype and production devices.

Experience/Qualifications:

• Degree in Mechanical, Electrical, Materials Science or related field (BSc with 6+ years of experience, MS with 3+ years).
• Expertise in Finite Element Analysis, Failure Modes and Effects Analysis (FMEA).
• Experience in data acquisition tools and techniques, including sensors & instrumentation.
• Experience in failure analysis methods and tools, including root cause analysis and corrective actions.
• Experience in vacuum and cryogenic environments preferred.
• Collaboration across multiple engineering disciplines is a must.
• Ability to communicate complex results & issues clearly and concisely.

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 [email protected].

We are not accepting unsolicited resumes from employment agencies.