Senior Integration & Test Engineer (Optomechanical, Thermal)

Psiquantum
Milpitas, CA


Quantum computing holds the promise of humanity’s mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint.

By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today’s most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more.

PsiQuantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier-1 semiconductor fabs such as GlobalFoundries where we leverage high-volume semiconductor manufacturing processes, the same processes that are already producing billions of chips for telecom and consumer electronics applications. We also benefit from the quantum mechanics reality that photons don’t feel heat or electromagnetic interference, allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity.

In 2024, PsiQuantum announced two government-funded projects to support the build-out of our first Quantum Data Centers and utility-scale quantum computers in Brisbane, Australia and Chicago, Illinois. Both projects are backed by nations that understand quantum computing’s potential impact and the need to scale this technology to unlock that potential. And we won’t just be building the hardware, but also the fault tolerant quantum applications that will provide industry-transforming results.

Quantum computing is not just an evolution of the decades-old advancement in compute power. It provides the key to mastering our future, not merely discovering it. The potential is enormous, and we have the plan to make it real. Come join us.

There’s much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey!

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.

Posted 2025-11-19

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