Job Summary:PsiQuantum is seeking a highly skilled Cryostat Engineer to lead the installation, commissioning, and ongoing operation of advanced cryogenic and ultra-high vacuum (UHV) systems supporting quantum computing hardware. This role is critical to ensuring reliable ultra-low-temperature and high-vacuum environments required for quantum device performance.
Responsibilities:- Lead installation and integration of cryostats and associated subsystems, including vacuum chambers, pumps, valves, and instrumentation.
- Execute commissioning procedures including vacuum pump-down, leak checking, bake-out processes, cooldown, and system qualification.
- Develop and maintain standard operating procedures (SOPs) for cryostat and vacuum system operation.
- Monitor and optimize vacuum performance (pressure levels, leak rates, outgassing) alongside cryogenic thermal stability.
- Troubleshoot and resolve issues related to vacuum integrity, cryogenics, and thermal interfaces.
- Perform helium leak detection, residual gas analysis (RGA), and vacuum diagnostics.
- Collaborate with cross-functional teams to integrate vacuum and cryogenic systems with quantum hardware.
- Perform preventive and corrective maintenance on cryostats, vacuum systems, and supporting infrastructure.
- Maintain detailed documentation, logs, and test reports for vacuum and cryogenic systems.
Experience/Qualifications:- Bachelor's degree in Mechanical Engineering, Physics, or a related field (advanced degree preferred).
- 3+ years of hands-on experience with cryogenic and/or high or ultra-high vacuum systems.
- Strong understanding of vacuum technology (UHV practices, pumping systems, sealing methods, materials compatibility).
- Experience with vacuum pumps (turbo, cryo, roughing), gauges, and leak detection methods.
- Solid foundation in thermodynamics and heat transfer.
- Experience installing and commissioning complex mechanical and vacuum systems.
- Ability to read and interpret engineering drawings, vacuum schematics, and P&IDs.
- Strong troubleshooting and problem-solving skills in lab or manufacturing environments.
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
$130,000-$145,000 USD
Bay Area Pay Range
$150,000-$165,000 USD
