Mechanical Engineer

Infleqtion is a global quantum technology company solving some of the world's most challenging problems by building and integrating quantum computers, sensors, and networks. The QGG Pathfinder program brings together atomic physics, aerospace hardware, electronics, software, supply chain, and mission assurance to mature a flight-relevant quantum gravity gradiometer payload.

Position Summary

Infleqtion is seeking a Mechanical Engineer II to support QGG mechanical design, drawings, tooling, fixtures, and low-complexity part ownership. This role is ideal for a hands-on engineer who enjoys converting technical direction into clean CAD models, released drawings, buildable parts, and practical tooling that helps a complex aerospace quantum payload move from design into integration.

Job Responsibilities

The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time with or without notice.

• Create and revise CAD models and mechanical drawings for QGG parts, tooling, fixtures, brackets, covers, adapters, and low-complexity assemblies.
• Support opto-mechanical, structural, thermal/mechanical, APPSH build, and AI&T tooling needs under direction from senior engineers and IPT leads.
• Develop drawing packages with appropriate dimensions, tolerances, materials, finishes, notes, and inspection features.
• Apply GD&T and tolerance stack-up thinking appropriate to the part function and manufacturing method.
• Design for manufacturability, assembly, inspection, cleanliness, handling, and integration constraints.
• Work with vendors and internal teams to resolve drawing questions, fabrication issues, and fit/function concerns.
• Support design reviews, peer checks, drawing release, ECOs, and configuration updates.
• Create simple analysis, hand calculations, or engineering rationale to support designs.
• Provide hands-on build, fit-check, and troubleshooting support in lab, shop, or AI&T environments.
• Document design decisions and open issues clearly so higher-level owners can make fast decisions.