Tool Design Engineer, Injection Molding

Overview

Job Description: The Tool Design Engineer, Injection Molding will serve as a technical leader in the development of next-generation injection molding tool designs to support Metal Injection Molding (MIM) medical device manufacturing. This role also includes responsibility for controlling, sustaining and enhancing legacy tooling designs to drive continuous improvement in operational efficiency and performance. This position will be based in Pomona, CA and required to be on-site full-time.

This position will report directly to the Process Engineering Manager.

• Lead the design of metal injection molds for orthodontic medical devices.
• Collaborate with both internal and external toolmakers on the fabrication of high-precision molds.
• Plan and estimate project timelines and resource requirements to ensure on-time delivery of mold design and fabrication.
• Develop complex mold designs for both new and legacy products, ensuring optimal performance and manufacturability.
• Create and maintain accurate Bills of Material (BOMs) for mold components and assemblies.
• Identify and define the critical function dimensions in steel components based on customer specifications and in-process requirements for fit, function and flash limits.
• Produce comprehensive mold design packages, including concept design, preliminary design, preparation for delivery design reviews, 2D mold assemblies, detailed prints BOM creation for Class 101/A Molds with tolerances of ±.0001.
• Review and validate all design outputs—prints, models, and assemblies—for accuracy and completeness prior to release for fabrication.
• Collaborate with product R&D team to ensure new product design is optimized for Manufacturability (DFM) during product development cycles.
• Facilitate design reviews with cross-functional teams including production, engineering & toolmakers (both internal/external).
• Resolve practical tooling problems associated with injection molds, components, fixtures and support equipment; bench test tools for proper fitting, clearances, and tolerances.
• Mentor and provide guidance to junior engineers and toolmakers.
• Report on project status and progress regularly through verbal and written updates.
• Provide daily support to toolmakers, engineering, and production to ensure smooth operation.
• Perform other duties as assigned by Manager.

• AA/Technical degree and 5+ years’ experience in a technical tool making and injection molding design within a manufacturing environment or HS diploma with trade school certification and 7+ years’ experience in technical tool making and injection molding design within a manufacturing environment.
• Proven expertise in usage of CAD (e.g. Solid Works, AutoCAD, CAD PDM), mold flow analysis software (e.g. Moldflow, Solidworks Plastics, Moldex3D) and MS Office Suite.
• Strong background in design of class 101/A Plastic and or MIM injection mold and mold manufacturing with tolerances of ±.0001.
• Background in orthodontic, dental or medical device manufacturing environment is highly desirable.

• Demonstrated expertise in material science, including comprehensive knowledge of material properties and their application in high-precision injection molding manufacturing environments.
• Proficient in conducting mold flow simulations using advanced software tools to optimize part and mold design.
• Skilled in technical drafting with a strong command of Geometric Dimensioning and Tolerancing (GD&T) for complex medical device components.
• Working knowledge of Coordinate Measuring Machines (CMM) and their role in dimensional verification; experienced in collaborating on the design and coordination of custom checking fixtures.
• Applied knowledge of Lean manufacturing principles to enhance workflow efficiency and reduce waste in machine shop operations.
• Technologically adept, with proficiency in Microsoft Office Suite (Word, Excel, Outlook) and general computer applications relevant to engineering and manufacturing.
• Strong mathematical aptitude, including the ability to perform complex calculations involving fractions, decimals, and unit conversions with precision.
• Strong written and verbal communication skills,…