Rigetti Computing - Senior Mechanical Engineer
Requirements
• ▸ B.S. or M.S. in Mechanical Engineering or related field (M.S. preferred). • ▸ 7+ years designing complex mechanical or electromechanical systems with end-to-end hardware ownership. • ▸ Expert-level SolidWorks — large assemblies, GD&T-compliant drawing packages, and DFM workflows. • ▸ Independent proficiency in SolidWorks, COMSOL or ANSYS for thermal and structural analysis. • ▸ Experience with hardware operating in cryogenic, vacuum, or extreme thermal environments. • ▸ Strong ME fundamentals: stress analysis, tolerance stack-ups, materials selection, and failure mode analysis. • ▸ Proven ability to lead technical efforts and collaborate across multidisciplinary teams. • ▸ Direct experience with dilution refrigerators, cryostats, or sub-Kelvin systems in quantum computing or precision instrumentation. • ▸ Knowledge of superconducting quantum hardware architecture and millikelvin design constraints. • ▸ RF/microwave packaging experience: connector specification, hermetic sealing, and cable routing in cryostats. • ▸ Familiarity with cleanroom protocols, vacuum-compatible assembly, and contamination-sensitive environments. • $165,000 - $190,000 a year
Responsibilities
• Cryogenic Hardware Design • ▸ Own the mechanical design of cryogenic hardware from 300 K to millikelvin — thermal anchoring, RF wiring, flex interconnects, coaxial routing, filter housings, and connector packaging across all temperature stages. • ▸ Lead the full design lifecycle: concept, CAD, GD&T drawings, BOMs, tolerance analysis, prototype builds, qualification testing, and manufacturing release. • ▸ Define cryogenic mechanical interfaces and thermal conduction budgets; drive design-for-manufacturability with external machine shops and precision vendors. • Simulation & Analysis • ▸ Perform mechanical, thermal, and vibration analyses independently using COMSOL, ANSYS, or equivalent; use simulation results to drive design decisions and iteration. • ▸ Conduct tolerance stack-up analyses for multi-component assemblies in constrained cryostat environments. • Integration, Leadership & Collaboration • ▸ Lead prototype builds, system integration, and cryogenic bring-up; diagnose integration failures and drive root cause analysis. • ▸ Serve as the mechanical lead in cross-functional programs alongside quantum physicists, RF engineers, and systems teams, mentor junior engineers and lead design reviews. • ▸ Maintain rigorous documentation — CAD models, drawings, BOMs, and revision-controlled design records — within the company PLM system.
Benefits
• Rigetti complies with all local and state regulations in regards to displaying salary ranges. Final compensation for this role will be determined by various factors such as a candidate’s relevant work experience, skills, and geographic location. Rigetti offers a full slate of benefits from competitive salaries, equity, medical, dental and vision for employees as well as a 401(k) plan, a paid parental leave program, rejuvenation days, and a vacation policy that aligns with local regulations and industry standards. • As engineering leaders, we value diversity and are committed to building a culture of inclusion to attract and engage innovative thinkers. Our technology, meant to serve all of humanity, cannot succeed if those who built it do not mirror the diversity of the communities we serve. Applications from women, minorities, and other under-represented groups are encouraged.
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