CNC Manufacturing Engineer

Senior CNC Manufacturing Engineer - Join a High-Growth Defense Startup Advancing Next-Generation Composite Manufacturing! Hawthorne, CA | On-site Opportunity Summary We are seeking a Senior CNC Manufacturing Engineer to join an innovative defense technology startup redefining how advanced composite components are produced. This company has developed a proprietary process that enables complex fiber-reinforced polymer structures to be manufactured significantly faster and at lower cost than traditional approaches, while maintaining exceptional strength and durability. In this role, you will take ownership of CNC machining operations supporting both prototype and production programs. You will work closely with engineering teams to machine precision molds and high-performance components that directly support mission-critical defense applications. This is a hands-on, high-impact opportunity for someone who thrives in a fast-moving shop environment and wants to help shape the future of advanced manufacturing in the United States. About Us We are a venture-backed defense manufacturing company pioneering a breakthrough process for composite production. Our team has successfully demonstrated advanced composite components in demanding aerospace environments and is now scaling the technology for broader defense and industrial applications. With strong industry backing and early technical validation, we are building the foundation for a new era of high-speed, high-strength composite manufacturing. Our focus is on reshoring critical capabilities and delivering meaningful impact for national security programs. Job Duties • Own CNC machining operations end-to-end, from CAM programming through setup and final machining • Machine high-precision molds and prototype components on accelerated timelines • Collaborate closely with engineering to provide manufacturability feedback and improve design for production • Select tooling, optimize cutting strategies, and refine setups for both composite and metal materials • Develop and improve CAM templates, fixturing strategies, and machining workflows to support scalable production • Maintain and calibrate CNC equipment to ensure consistent quality and performance • Manage aspects of tooling and material operations, including procurement, tool library organization, and shop standardization • Communicate clearly regarding project status, risks, and timeline updates • Maintain a professional, organized, and high-accountability shop environment Qualifications • 4+ years of CNC machining experience • Experience operating CNC vertical mills and CNC lathes • Proficiency with CAD and CAM software such as Onshape, Autodesk Fusion CAM, or comparable platforms • Ability to interpret CAD models, technical drawings, and GD&T requirements • Strong attention to detail and ownership mindset • Clear communication skills and ability to collaborate across teams Preferred Experience • Background in mold making or high-precision machining • Experience with complex 3D surfacing • Exposure to composite manufacturing environments • Experience building or standardizing tooling libraries • Prior involvement in scaling machining processes for production Why Join Us • Opportunity for meaningful growth in a scaling defense technology company • Direct impact on mission-critical programs • Hands-on exposure to advanced composite manufacturing workflows • Ability to help define machining standards during a major growth phase • Fast-paced startup environment with high ownership and accountability • Stock options • Paid time off • 401K with employer match up to 4 percent of salary • Medical benefits including health, dental, and vision coverage Compensation Details $100,000 – $140,000