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Infleqtion is a global quantum technology company developing quantum computers, sensors, and networks for commercial and scientific applications. This Staff Mechanical Engineer role focuses on designing the mechanical infrastructure, mounting systems, and environmental survivability architecture for the Quantum Gravity Gradiometer (QGG) sensor—enabling transition from laboratory prototypes to terrestrial and space deployment.
Key responsibilities include completing the QGG sensor head design for development, microgravity testing, and space applications while balancing structural dynamics, thermal performance, optical alignment stability, magnetic cleanliness, mass, packaging, and manufacturability. You will execute modeling, simulation, and analysis (structural, thermal, modal, vibration, shock, tolerance) and correlate results with hardware testing. The role demands mechanical integration of sensor subsystems with optical, electrical, vacuum, thermal, fiber, and spacecraft interfaces.
You will identify and technically manage key suppliers for precision machined parts, opto-mechanical hardware, isolation/damping systems, and specialty materials. Responsibilities include presenting progress, analyses, risks, and design decisions to senior management, design-review boards, and end customers. You'll follow Infleqtion's Product Lifecycle Process, support gate reviews, design reviews, configuration control, and build/test readiness. You will develop and maintain mechanical risk-management plans, support reliability analysis and nonconformance resolution, and mentor junior engineers in mechanical design, tolerancing, and design-for-manufacturability.
Required qualifications: Bachelor's degree in mechanical, aerospace, or related engineering discipline; 6+ years of progressive experience in precision mechanical, opto-mechanical, aerospace, or high-reliability hardware roles. Expert-level proficiency in SolidWorks (parts, assemblies, drawings, configuration control) and first-principles mechanical engineering (load paths, stiffness, thermal expansion, tolerancing, materials, trade studies). Experience with SolidWorks Simulation or comparable structural/thermal analysis tools; advanced understanding of opto-mechanics (free-space optical mounting, collimation, fiber-coupled alignment, flexures); demonstrated DFx experience; understanding of ASTM E595 and vacuum/space material selection; experience designing custom flexure mounts and precision optical mounts; demonstrated tolerance analysis for precision assemblies; hands-on hardware build and debug experience; appropriate use of AI for engineering leverage.
