Mechanical Engineer

This position is for a confidential organization developing advanced technologies in Los Angeles, CA. This is a fully on-site role focused on the hands-on design, fabrication, assembly, and testing of first-of-a-kind mechanical systems. The ideal candidate is a highly practical mechanical engineer who enjoys working directly in the shop and lab, designing, machining, fabricating, and iterating on complex prototype hardware in a fast-paced R&D environment. Responsibilities Design, build, and iterate mechanical systems and components for advanced prototypes. Perform hands-on machining and fabrication using manual and CNC equipment including mills, lathes, drill presses, and fabrication tools. Manufacture precision parts and fixtures to support prototype development, testing, and experimental systems. Work directly from engineering drawings, CAD models, and schematics to fabricate and assemble mechanical hardware. Collaborate closely with engineers and technicians to rapidly prototype, test, and refine mechanical designs. Support the assembly and integration of mechanical systems including piping, pressure systems, pumps, valves, and structural assemblies. Troubleshoot mechanical systems during build and testing, performing root-cause analysis and implementing design improvements. Modify and improve hardware quickly based on test results and operational feedback. Assist in the development of tooling, jigs, fixtures, and test hardware to support engineering development programs. Maintain shop equipment, tools, and workspaces to high safety and professional standards. Experience Required 5+ years of hands-on mechanical engineering or prototyping experience in R&D, energy systems, aerospace, robotics, or advanced manufacturing environments. Extensive experience operating manual machining equipment (lathe, mill, bandsaw, drill press, grinders). Strong background in fabrication, mechanical assembly, and prototype hardware development. Experience building and integrating mechanical systems such as piping, pressure vessels, structural frames, pumps, and fluid systems. Proven ability to take designs from concept through fabrication, assembly, and testing. Demonstrated troubleshooting skills in complex prototype or experimental systems. Qualifications B.S. in Mechanical Engineering or equivalent hands-on engineering experience. Strong working knowledge of machining practices, fabrication methods, and mechanical design for manufacturability. Proficiency interpreting engineering drawings, GD&T, and CAD models. Practical experience with shop tools, fabrication processes, and rapid prototyping techniques. Comfortable working in a fast-paced, build-test-iterate engineering environment. Strong communication and collaboration skills across engineering and technical teams. Ability to work on-site in Los Angeles, CA. For immediate consideration, please click apply and attach a copy of your resume. #J-18808-Ljbffr Lumicity