Cryogenics Engineer

Job Description

Job Title: Cryogenics Engineer. Location: Fremont, CA (On-site at Rigetti’s FAB and R&D facility)

This hands-on role supports the development of advanced quantum computing technologies in a deep R&D environment; You will work with physicists, engineers, and technicians to assemble, test, and maintain cryogenic and RF systems critical to Rigetti’s quantum hardware.

Responsibilities:

• Operate, troubleshoot, and maintain cryogenic equipment such as scroll pumps, turbo pumps, cryo compressors, and high-vacuum valves.
• Conduct helium leak tests, pump rebuilds, and manage thermal systems.
• Assemble, validate, and install electro-mechanical, cryogenic, vacuum, and RF systems with precision;
• Test and debug custom RF control systems using electronic test equipment (network analyzers, multimeters, oscilloscopes, DC power supplies, and in-house tools).
• Develop and execute test plans for advanced RF components.
• Support cryogenic systems on-call in rotation with the Engineering Operations team.
• Prepare, inspect, and package quantum chip assemblies for testing;
• Follow, create, and adapt standard operating procedures and documentation.
• Interpret CAD drawings and engineering specifications.
• Travel up to 10% to support external installations with customers and partners.

Qualifications:

• BS degree in Physics, Engineering, or equivalent industrial/military experience (MS or PhD preferred).
• Substantial lab experience with sub-Kelvin cryogenic equipment.
• Familiarity with Six Sigma, DOE, or other statistical test methods;
• Experience with high-availability systems and large scientific equipment.
• Hands-on experience assembling and maintaining scientific instruments or electro-mechanical assemblies.
• Knowledge of dilution refrigerators or related cryogenic systems strongly preferred.
• Proficiency with Python or related scripting languages;
• Strong skills in vacuum plumbing, P&ID, and lab equipment.
• Excellent troubleshooting, communication, and documentation skills.
• Experience collaborating with vendors and external stakeholders.

Compensation and Benefits:

• Salary range: $160,000 – $200,000 annually (final offer based on experience, skills, and location).
• Equity package.
• Comprehensive health benefits: medical, dental, and vision.
• 401(k) retirement plan;
• Paid parental leave, rejuvenation days, and vacation in line with local regulations.

Equal Opportunity Statement: Rigetti is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive workplace; All qualified applicants are encouraged to apply regardless of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.