Mechanical Engineer, Cryo/RF

Job Description

Job Title: Lead Mechanical Engineer, Cryo/RF. Location: Berkeley, CA

Responsibilities:

• Lead the mechanical design of complex subsystems such as cryostat interiors, RF signal chain components, and custom metal enclosures.
• Develop and maintain 3D CAD models, detailed drawings, and Bills of Materials (BOMs);
• Design thermal anchoring and shielding systems to maintain quantum coherence and mechanical stability from room temperature to millikelvin ranges.
• Perform thermal, vibrational, and structural simulations using FEA tools;
• Build and validate cryogenic and mechanical prototypes in the lab;
• Collaborate with quantum physicists and RF/hardware engineers to ensure integration and performance in real quantum systems.
• Define specifications for outsourced assemblies such as vacuum flanges and RF housings, and manage supplier relationships.
• Document assembly procedures and maintain design traceability using PLM systems.

Qualifications:

• Master’s degree or higher in Mechanical Engineering or related field.
• At least 7 years of experience in mechanical design and systems engineering.
• Proficient in 3D CAD software (SolidWorks preferred);
• Strong knowledge of tolerance analysis and GD&T.
• Experience in thermal and structural modeling and simulation;
• Familiarity with PLM systems and documentation control;
• Excellent cross-disciplinary communication and teamwork skills.
• Proven ability to develop and document manufacturing and assembly processes.

Preferred:

• Understanding of cryogenic materials and multi-physics systems.
• Experience with RF packaging and vacuum or cryogenic environments.
• Quality assurance experience, including inspection and non-conformance resolution.
• Hands-on experience in machining or fabrication to support prototyping.

Benefits:

• Base Salary: $170,000 to $215,000 annually (final offer based on experience, skills, and location).
• Competitive equity options;
• Health benefits: medical, dental, and vision coverage.
• 401(k) retirement plan;
• Paid parental leave.
• Rejuvenation days and generous vacation aligned with local laws and industry norms.

Diversity & Inclusion: Rigetti Computing is committed to building an inclusive & diverse team; We strongly encourage applications from women, minorities, & underrepresented groups; Our technology is designed for everyone, & we believe our workforce should reflect the communities we serve.