Test Engineering Intern at Lunar Energy in Mountain View, CA

Summary: Lunar Energy is a fast-growing company focused on transitioning homes to 100% clean energy. They are seeking a Test Engineering Intern to work alongside various engineering teams to design, build, and deploy test fixtures for their energy products. Responsibilities: - Design mechanical test fixtures in 3D CAD: the equipment that validates the hardware going into real customers' homes - Specify and validate components to meet the test specifications provided by Electrical, Firmware, and Manufacturing Engineer teams - Prototype fast with our in-house 3D printers, laser cutters, and machine shop. Sketch it in the morning, print it by lunch, try it on a bench by the end of the day - Bring fixtures to life on the floor: Verify test-points, debug mechanical issues, and work side-by-side with technicians - Collaborate with external fabrication vendors to take your designs from CAD to production-ready drawings, quotes, and first-article inspections all sit with you - Write documentation clear enough that the team can replicate your work and keep it running for years Required Qualifications: - Rising senior in a B.S. program, recent graduate (within the last year), or student in the final year of an M.S. program in Mechanical Engineering, Mechatronics Engineering, or a closely related field - Proficiency with at least one 3D CAD package (e.g., SolidWorks, Fusion 360, Onshape, or equivalent) - Hands-on prototyping experience: 3D printing (FDM/SLA), laser cutting, basic machining, or general fabrication in a maker space, lab, or formula-style student project - Working understanding of tolerance stack-ups, GD&T basics, and fasteners/joining methods - Comfort reading mechanical drawings, electrical schematics, and bills of materials - Basic electrical/electronics fluency: comfortable with a multimeter, DMM, oscilloscope, bench power supply, and simple wiring - Familiarity with pneumatic actuation, cam mechanisms, or other mechanical actuation for fixtures - Some scripting ability for simple automation, data processing, or tool integration - Awareness of DFX (Design for Manufacturing, Assembly, Test) principles - Thoughtful use of AI assistants and coding tools (e.g., Claude, Gemini, ChatGPT) in your engineering workflow—including good judgment about when outputs need verification and awareness of confidentiality practices Required Skills: 3D CAD, SolidWorks, Fusion 360, Onshape, 3D printing, FDM, SLA, Laser cutting, Machining, Fabrication, Tolerance stack-ups, GD&T, Fasteners, Mechanical drawings, Electrical schematics, Bills of materials, Electrical/electronics fluency, Multimeter, DMM, Oscilloscope, Bench power supply, Wiring, Pneumatic actuation, Cam mechanisms, Mechanical actuation, Scripting, Automation, Data processing, Tool integration, Design for Manufacturing, Design for Assembly, Design for Test, Judgment