Injection Molding Process Engineer

About the Role Join our Manufacturing Engineering team, owning the full injection molding lifecycle — from mold qualification through steady-state production — to ensure our processes and tooling consistently deliver quality parts on time. This role focuses on optimizing production efficiency, ensuring product quality, and driving continuous improvement initiatives in molding operations. What You'll Do

• Develop, optimize, and validate injection molding processes for new and existing products, balancing cycle time, quality, and cost.
• Evaluate mold designs for manufacturability and partner with mold makers on tool builds, modifications, and repairs.
• Troubleshoot process- and tooling-related defects on the production floor, driving root cause analysis and corrective actions.
• Lead mold sampling, first-article inspection, and process/tool qualification for new and revised programs.
• Run DOEs to establish robust process windows and reduce variation across shifts and machines.
• Plan and oversee preventive maintenance schedules to maximize tool life and minimize unplanned downtime.
• Collaborate with product design, quality, and production teams during new product introduction (NPI).
• Maintain process and tooling documentation, including work instructions, control plans, and mold records. What We're Looking For
• Bachelor's degree in Mechanical, Plastics, Manufacturing Engineering, or related field.
• 3+ years of experience in injection molding process engineering, tooling engineering, or a combined role.
• Working knowledge of thermoplastic materials and mold construction (cold runner, hot runner, multi-cavity).
• Experience with process validation (IQ/OQ/PQ) and mold qualification activities.
• Proficiency with CAD software for mold/part review (e.g., SolidWorks, Moldflow, or similar). Nice to Have
• Proficiency with Siemens NX software.
• Hands-on machining or mold-building experience (CNC, EDM, grinding).
• Familiarity with mold flow simulation and scientific molding principles.
• Experience with plastic injection molding, hot runner systems and advanced gating techniques.
• Background in automotive, medical device, or consumer electronics manufacturing.
• Six Sigma or lean manufacturing certification. Compensation & Benefits At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.