About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what’s possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary The Rivian Sr. CNC Machinist III plays a key role in high-end, multi-axis machining for Rapid Prototyping, where they autonomously review and execute machining tasks with efficiency and precision. This role requires the ability to interpret complex engineering drawings, apply Design for Manufacturing (DFM) feedback, and program parts using advanced CAM software like Fusion 360, Powermill, and Camplete. The machinist must swiftly set up machines, execute roughing and finishing toolpaths, and ensure part quality through detailed inspection, all while maintaining close collaboration with engineering teams to address manufacturability issues. Additionally, they drive continuous improvement by exploring new materials, manufacturing methods, and workflows, ensuring scalability, repeatability, and optimal throughput across the shop. This role demands a proactive, solutions-oriented mindset to elevate machining processes and meet tight production timelines, setting the bar higher with every task. Responsibilities Review assigned Jira tickets to determine material, tooling, fixturing requirements with autonomy. Discuss with engineering teams the issues related to manufacturability or timing, provide Design for Manufacturing (DFM) feedback, modify in CAD submitted parts as discussed to ensure successful completion of task. Participate in team/ peer discussions with suggestions on how to process the more complicated jobs, including fixturing and tooling requirements. Quick setup of mission critical parts which could disrupt company production schedules, and prevent excessive costs incurred by outside vendors. Review large quantity jobs to optimize program toolpaths, speeds, and feeds to reduce overall processing time Perform inspection tasks to ensure part conforms to required critical dimensions and specifications utilizing advanced GD&T and engineering drawing reading abilities, using standard measurement equipment (verniers, calipers, micrometers, bore gauges, gauge pins, height gauges) Utilize 3D Scanning Equipment and corresponding software (Polyworks) for full virtual inspection of machined parts. Machine maintenance including monitor filters, oil and grease levels, machine calibration and adjustment Qualifications Ability to quickly summarize part requirements, apply roughing toolpaths and get machine running in as little time as possible (often