Plastics Engineer

JOB PURPOSEThe Plastics Engineer - Injection Molding Process & Flow Simulation (PE) is responsible for performing mold flow simulations on new injection-molded part designs to proactively identify and mitigate potential manufacturing issues that could impact quoted cycle time, product quality, or profit margins. The PE also conducts flow simulations on existing injection-molded products as part of continuous improvement and problem-solving projects. The PE will collaborate closely with cross-functional internal engineering teams at Prudent American and play a critical role in validating and optimizing injection-molded components and tooling. DUTIES AND RESPONSIBILITIESu2022Perform mold flow simulations using Moldex3D to analyze and optimize part design, gate locations, cooling systems, vent locations, windage corrections, cycle times etc.u2022Collaborate with product design and tool design teams to ensure manufacturability and moldability of plastic parts.u2022Support tooling development from concept through production, including tool design reviews and trial evaluations.u2022Develop and optimize and document, Robust injection molding processes to ensure quality, efficiency, and repeatability in production, using cavity pressure and/or temperature monitoring systems where available. u2022Analyze process data and conduct root cause analysis for molding issues such as warpage, short shots, flash, sink marks, or flow lines. Make tool windage recommendations which counteract warpage and eliminate the need for shrink fixturing parts. u2022Work with suppliers and internal teams to validate tooling and ensure alignment with project requirements and timelines.u2022Recommend material selection based on performance requirements, moldability, and cost.u2022Create and maintain technical documentation, including process setup sheets, DOE reports, and simulation results.u2022Other tasks as assigned by the Director of Engineering. QUALIFICATIONSu2022Bacheloru2019s degree in Plastics Engineering, Polymer Science, Mechanical Engineering, preferred, and/or at least ten years of quality experience with documented results.u2022Minimum 5 years of experience in injection molding process development and flow simulation.u2022Hands-on experience with Moldex3D is highly preferred; experience with other flow simulation software (e.g., Autodesk Moldflow) is acceptable.u2022Strong understanding of thermoplastics materials, mold design principles and scientific molding process development.u2022Knowledge of scientific molding techniques, use of cavity pressure sensors, in mold thermocouples and data acquisition systems. RJG Inc. Master Molder training and systems knowledge, preferred. u2022Familiarity with GD&T, DFM, and DFA practices.u2022Proven problem-solving skills and ability to lead technical discussions with cross-functional teams.u2022Excellent communication skills and attention to detail.u2022Experience with multi-cavity molds, standard and valve gated hot runner systems, and complex core pull sequencing, preferred.u2022Experience working with contract manufacturers domestic and oversea tool shops, preferred.u2022Firearms design, manufacturing and assembly experience, preferred. WORKING CONDITIONSu2022Work is performed in an operational production environment, with split time spent in a typical office environment. u2022Travel may be required to other company locations, customer sites, supplier facilities, or tooling vendors.PHYSICAL REQUIREMENTSu2022Prolonged periods of sitting at a desk and working on a computer.u2022Walking and standing on production floor periodically. u2022Occasionally lifting, up to 25 pounds at a time. DIRECT REPORTSNot Applicable.Export Control Compliance NoticeThis position may involve access to technology or software source code subject to U.S. export control laws (ITAR/EAR). Employment is contingent on verifying U.S. Person status or obtaining any necessary export license/confirming the availability of a license exception. Applicants must provide information for export control screening, which will be reviewed for compliance. Prudent Holdings may elect not to pursue a license or exception and may decline to proceed with an applicant on that basis.

Created: 2026-04-17