Senior Cryostat Engineer

PsiQuantum is seeking a Senior Cryostat Engineer to lead the installation, commissioning, and ongoing operation of advanced cryogenic and ultra-high vacuum systems supporting quantum computing hardware. This role is critical to ensuring reliable ultra-low-temperature and high-vacuum environments required for quantum device performance.

Requirements

• 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.

Benefits

• Equal employment opportunity
• No unlawfully discrimination