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Optical Circuit Switch System Software, Specialist

PSI Quantum
$120,000—$135,000 USD
United States, California, Palo Alto
700 Hansen Way (Show on map)
Apr 21, 2026

PsiQuantum'smission 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 approachisbased on silicon photonics. Byleveragingthe 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: photonsdon'tfeel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure.

In 2024,PsiQuantumannounced 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.

PsiQuantumalso 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. Itrepresentsa fundamental shift-and a path to mastering challenges that cannot besolvedany other way. The potential is enormous, and we have a clearpathto make it real.

Come join us.

Job Summary:

Responsibilities:

This job requires focus on two fronts, both requiring software development skills :



  1. Development, enhancement and support of optical circuit switch (OCS) software eco-system. On this front, the candidate is expected to:



  • ramp-up and support an existing software eco-system (python based) used to OCS subsystem emulation
  • ramp-up on an in-house developed event-driven simulator's API and create/enhance network endpoint and component models compatible with the simulator
  • Create, enhance, support graphical tools and interfaces to analyze the network simulation results.


2. Development of low-level software that will be responsible for calibration, monitoring, diagnostics, and data acquisition of OCS subassemblies. On this front, the candidate is expected to:



  • Interface with a cross-functional team of engineers to ensure that firmware requirements (across multiple boards) are defined, understood and documented.
  • Write micro-architecture level documents (per firmware piece) and get these approved by the cross-functional team.


Experience/Qualifications:



  • Bachelor's Degree in EE, CE, CS, or Physics preferred.
  • 2+ years experience developing software and firmware using python and embedded C.
  • Experience with Git and Vendor IDEs
  • Experience with automated build/test infrastructure


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
$120,000 $135,000 USD
Bay Area Pay Range
$155,000 $165,000 USD

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