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Sr. Manufacturing Engineer - Plastics (Tooling)

Rivian

10/30/2025

Plymouth, MI

Full-time

Salary: $98.5k - $123k per year


Job Description

Lead the ideation, design, and execution of Plastics tooling & technologies at Rivian to launch products smarter, faster, and more sustainably.

Requirements

  • Bachelor’s degree in Engineering or similar technical field.
  • 5+ years of experience in a plastics engineering role
  • Knowledge of various injection molding best practices such as flow lengths, ribs, bosses, etc.
  • Experience and understanding of injection molding, as well as tooling design and construction
  • Strong skills with common workplace software (word processor, spreadsheet, database, etc).
  • Exceptional verbal and written communication skills.
  • Experience working within 2D & 3D CAD environments and various engineering tools

Responsibilities

  • Specification, design, and launch management of plastics tooling projects
  • Provide molding guidelines, best practices, and tools to aid engineering in material and process selection
  • Support cost reductions as a champion of good, fundamental design across the vehicle
  • Work with Tool Maker and Process Engineering Team to develop homeline process
  • Ensure achievement of safety, quality, cost, timing & throughput targets on all projects
  • Provide regular, metric-based project updates to the management team
  • Actively look for ways to add value beyond specifically assigned scope of work
  • Support vendor selection and negotiations to optimize financial spending
  • Ensure effective handover of tooling to operations and sustaining teams

Benefits

  • Employees at Rivian are often offered comprehensive health, dental, and vision insurance, a 401(k) with company match, ESPP and potential RSU grants, performance bonuses, and generous time off including paid parental and sick leave. Perks can include 24/7 mental-health coaching and therapy, Hinge Health for Anthem enrollees, tuition assistance and professional development, plus on-site food and a wide range of employee discounts on items like computers, mobile phones, home loans, and pet care.
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