CNC Prototype Machinist

Joby Aviation

Marina, CA, USA

Full time

Trucks VC portfolio

Jul 4

Joby Overview

Located in Northern California, the Joby Aviation team has been steadily working toward our goal of providing safe, affordable, fully electric air transportation that is accessible to everyone. Imagine an air taxi that takes off vertically, then quietly and quickly carries you over the congestion below, giving you back that time you’d otherwise spend sitting in traffic. Technology has advanced to the point where designing and operating an all-electric aircraft is completely viable. Our team has been discreetly designing and flight testing this vehicle and is looking for talented individuals to see it through certification and high rate production.


Joby Aviation is seeking a CNC Prototype Machinist to join our manufacturing team. This individual’s role is to make fixtures, jigs, test articles, and flight components while collaborating with engineers and composite technicians, you will be responsible for the entire process of CNC operations. Hands-on experience and a “get it done" attitude are very important for this position. This position is rewarding, as the team member will promptly see their work integrated into and supporting the testing and production process due to the fast pace of Joby Aviation.


  • Operate mills, lathes, drill presses, saws, grinders, and sheet metal fabrication equipment.
  • Program, set up, and operate both 3 axis mills and lathes to create complex aircraft components, fixtures, and tooling, from rough stock to finished part.
  • Determine the best setup, machining strategy, order of operations, tool selection, speed/feed parameters for each project.
  • Ability to shift between jobs when priorities change using zero-point setups and communicating with co-workers.
  • Identify, select, procure, and orgaånize appropriate tooling for projects based on part material, geometry, features, tolerances, and system capability.
  • Collaborate with team members to develop a standardized process for machining, work holding, and set-up to increase efficiency and productivity.
  • Collaborate with engineers, CMM technicians, and programmers to improve the design and manufacturability of tools and components.
  • Organize and manage multiple machining projects with a high degree of efficiency.
  • Lead the continuous improvement of a well-organized and safe environment for all workspaces.
  • Read blueprints and other design documents as well as interpret verbal design instructions.


  • 2+ years of Machining experience.
  • CNC 3 axis Mills, Program & Set-up.
  • Basic machine edits, knowledge of G&M codes.
  • Flexibility to work in a fast-growing environment with aggressive timelines
  • Self-motivated team player
  • Excellent problem solving and communication skills
  • Willingness to do a variety of tasks to get the job done.
  • General/Basic machine maintenance.  
  • Attention to detail
  • Ability to lift 50lbs unaided

Pursuant to various local, state, and federal regulations, you must show proof of your full COVID-19 vaccination status prior to your start date. Exemption requests are available for bona fide religious and medical circumstances.


  • 5 Axis Machine experience
  • 5 Axis Programming experience
  • CNC Lathe, Program & Set-up.
  • General GD&T knowledge
  • Solidwork CAD experience
  • Fusion360 CAM experience
  • Solid CAM experience
  • Experience with composite tooling  
  • Experience with composite parts trimming

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Joby Aviation

Electric Aerial Ridesharing