Prototype Machinist & Fabrication Specialist

Responsibilities

• Operate and program 5-axis CNC machines, CNC lathes, and manual mills/lathes to produce high-tolerance prototype components
• Oversee the daily operation, post-processing, and maintenance of 3D printing technologies including FDM, SLS, and SLA platforms
• Design and fabricate custom jigs, fixtures, and specialized tooling to support complex assemblies
• Interpret engineering drawings, blueprints, and CAD models to ensure builds meet exact specifications
• Provide feedback to Mechanical Engineers on Design for Manufacturability (DFM)
• Perform preventative maintenance on all shop machinery and equipment
• Manage inventory for machinist-specific consumables including cutting tools, resins, and filaments
• Support physical assembly, wiring, and mechanical troubleshooting of robotic delivery vehicles
• Maintain a clean, organized, and OSHA-compliant machine shop environment
• Lead EH&S efforts including PPE compliance and hazardous material management

Requirements

• Minimum 7+ years of experience in a high-precision machine shop, R&D lab, or prototype environment
• Mastery of 5-axis CNC programming and operation, CNC lathes, and manual machining equipment
• Proficiency in precision measurement tools such as micrometers, calipers, bore gauges, and CMM
• Hands-on experience managing professional-grade 3D printing platforms
• Proficiency in CAD/CAM software (Mastercam, HSMWorks, Fusion 360, SolidWorks, or Onshape)
• Ability to lift and carry materials weighing up to 50 pounds
• High visual acuity for reading blueprints and detailed craftsmanship

Preferred Qualifications

• Advanced fabrication skills such as TIG/MIG welding or sheet metal fabrication
• Experience in robotics, aerospace, or automotive industries working on autonomous systems
• Proficiency in electronics including reading schematics and basic soldering
• Familiarity with Linux or Python for robotic system testing
• Valid U.S. driver’s license

About the Company

DoorDash Labs is an independent team within DoorDash working on building autonomous delivery robots from the ground up and other automation solutions as part of DoorDash's core delivery platform.