Injection Molding Engineer

The Toyoda Gosei Group is a leading global manufacturer of rubber and plastic automotive components, safety systems and LEDs. The Group is headquartered in Japan and operates 67 companies across 17 countries and regions, delivering its extensive range of products to customers worldwide.

Toyoda Gosei Texas (located in San Antonio, TX) has an opening for an Injection Molding Engineer in the Interior/Exterior Plastic Engineering department. The engineer works autonomously, developing processes for new products and optimizing existing ones to meet quality, cycle‑time, and yield targets. Responsibilities include hands‑on setup and processing of injection molds for Toyoda Gosei TX (TGTX) and TGNA Manufacturing Companies (AMCs).

• Perform studies on customer product designs for tooling feasibility utilizing CATIA.
• Oversee and manage new tool design and construction with mold suppliers.
• Write mold design specifications for new tooling and maintain mold standards.
• Attend new mold tryouts to identify and troubleshoot problems.
• Provide sales support involving cost estimation and tooling cost‑down proposals.
• Quote and schedule new tooling and modifications to existing tools.
• Communicate with design and manufacturing to solve technical problems.
• Establish and refine molding parameters to maximize efficiency, minimize scrap, and ensure consistent quality.
• Diagnose and resolve defects, machine issues, and process inefficiencies using scientific molding principles.
• Work with tooling suppliers and internal teams to ensure proper mold maintenance, modifications, and performance optimization.
• Select appropriate materials (PP, ABS, Nylon, and other automotive‑grade resins) and set up injection molding machines for optimal production.
• Apply Toyota Production System (TPS), Kaizen, and Lean Manufacturing principles to drive cost savings and efficiency improvements.
• Ensure parts meet IATF 16949 and ISO 14001 quality standards, utilizing DOE and other statistical methodologies.
• Collaborate closely with production, maintenance, and quality teams to drive improvements in safety, efficiency, and defect reduction.
• Assist in launching new molds, engineering changes, and process development for upcoming Toyota model updates.
• Ensure molding processes comply with OSHA regulations, internal safety policies, and environmental standards.
• Decrease scrap rates and improve first‑pass yield.
• Ensure defect‑free parts that meet Toyota’s stringent quality expectations.
• Reduce cycle times and improve overall equipment effectiveness (OEE).
• Actively engage in continuous improvement efforts (kaizen).

• Bachelor’s degree in Engineering or equivalent years of relevant experience.
• RJG Master Molder Certification preferred.
• Six Sigma Green Belt preferred.

• 1–4 years of experience in an engineering role required.
• 1 to 4 years of experience in injection molding at a manufacturing environment preferred.
• Prior knowledge of injection molding machines (Yushin, Yaskawa, Start, Fanuc, UR Robots) preferred.
• Understanding of hot runner systems, mold flow analysis, and mold maintenance preferred.
• Experience in scientific molding, decoupled molding, and root cause analysis preferred.
• Familiarity with Toyota Production Systems (TPS), Lean Manufacturing, and Six Sigma methodologies preferred.

• Employee must be able to talk or hear regularly, sit frequently, stand, walk, reach with hands and arms, and occasionally lift up to 50 pounds.
• Close vision required.

• Proficiency with Microsoft Office Suite 2016 or newer.
• Experience with Moldflow preferred.
• Experience with Solid Works preferred.

• Plant environment.

• Consistently meet deadlines.
• Bilingual (English/Spanish) is a plus.
• Effective verbal, non‑verbal, negotiation, and written communication skills.
• Professionalism in interacting with internal and external customers.
• Attention to detail, problem solving, analytical and organizational skills.
• Strong organizational, analytical thinking, problem solving, and project scheduling skills.