PsiQuantum
Cryostat Equipment Engineer
Milpitas, California, United States · Full-time
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DOL prevailing wage, 2026-27 wage year · Mechanical Engineers (17-2141) · San Jose-Sunnyvale-Santa Clara, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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About the role
- This role is critical to ensuring the reliable operation of large-scale cryostats and associated vacuum and instrumentation systems in a cutting-edge R&D and production environment.
Responsibilities
- Operate and maintain high-vacuum systems (UHV/HPV), including pumps, gauges, valves, and leak detection equipment.
- Develop and execute commissioning procedures, acceptance tests, and system validation protocols.
- Monitor cryostat performance, diagnose faults, and perform preventative and corrective maintenance.
- Collaborate with cross-functional teams (quantum hardware, facilities, controls, and safety) to ensure system reliability and uptime.
- Maintain detailed documentation, including schematics, procedures, maintenance logs, and system modifications.
- Support continuous improvement efforts in system design, reliability, and operational efficiency.
- Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems.
- 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.
- 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.
- PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable.
Requirements
- Bachelor's degree in Mechanical Engineering, Physics, Electrical Engineering, or a related field (or equivalent experience).
- Hands-on experience with high-vacuum or ultra-high-vacuum (UHV) systems.
- Experience installing, commissioning, and maintaining complex equipment in a lab or industrial setting.
- Familiarity with cryogenic systems (e.g., dilution refrigerators, liquid helium systems, or closed-cycle cryocoolers).
- Experience with instrumentation and data acquisition systems.
- Ability to read and interpret engineering drawings, P&IDs, and electrical schematics.
- Strong troubleshooting and root-cause analysis skills.
Nice to have
- Experience working with cryostats in quantum computing, superconducting systems, or low-temperature physics environments.
- Familiarity with control systems (e.g., PLCs, LabVIEW, or similar platforms).
- Experience in a cleanroom or semiconductor environment.
- Advanced degree in a relevant field.
- PsiQuantum provides equal employment opportunity for all applicants and employees.
- Please report any suspicious activity to recruiting@psiquantum.com.
- 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).
- Base pay is subject to change and may be modified in the future.
Compensation
- $110,000 - $120,000 USD
- Bay Area Pay Range
- $128,000 - $145,000 USD
Company info
- 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.
- We are not accepting unsolicited resumes from employment agencies.
- PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised.
- 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.
Visa & Work Authorization
- g 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, domesti
This listing is sourced directly from PsiQuantum's careers page and normalized into a canonical job model.