The Mold Designer is responsible for leading the mechanical design, development, validation, and continuous improvement of high-precision plastic injection molds for new and existing products.

This role serves as the technical expert throughout the complete mold development lifecycle, from concept design through production launch, ensuring optimal manufacturability, quality, cycle time, reliability, and cost efficiency.

The Mold Designer partners closely with Tool Room, Manufacturing Engineering, Product Engineering, Suppliers, and Operations to develop innovative tooling solutions that support business objectives while maintaining Hunter Industries quality standards.

Essential Responsibilities
Mold Design & Development

Lead the complete design and development of complex plastic injection molds for new product introductions and engineering changes.

Develop 3D CAD models, detailed manufacturing drawings, assemblies, BOMs, and engineering documentation.

Design multi-cavity, family, hot runner, valve gate, unscrewing, lifter, slide, insert, and specialty mold systems.

Ensure designs comply with DFM, DFA, GD&T;, SPI standards, company standards, and customer specifications.

Perform tolerance stack-up analysis to ensure dimensional capability.

Design cooling circuits to optimize mold performance and cycle time.

Design venting systems, gating, runners, ejector systems, cooling layouts, and wear components.

Engineering Analysis





Perform Mold Flow analysis interpretation and implement design improvements.

Analyze part geometry and recommend tooling improvements for manufacturability.

Evaluate shrink factors and resin behavior.

Resolve molding defects through tooling modifications.

Develop engineering solutions for quality, dimensional, and productivity issues.

Continuous Improvement

Drive tooling optimization projects focused on:

Cycle time reduction

Mold reliability

Maintenance reduction

Scrap reduction

Tool life improvement

Cost reduction

Bachelor's Degree in: Mechanical Engineering, Mechatronics Engineering or Related Engineering

Experience

7+ years of experience designing plastic injection molds.

Proven experience with high-volume manufacturing.

Experience supporting New Product Introduction (NPI).

Experience working with Tool Shops and mold manufacturers.

Experience leading tooling projects from concept to production.

Experience troubleshooting mold performance.

Required:

SolidWorks (Advanced)

Mold design best practices

Plastic Injection Molding

Mold Flow interpretation

GD&T; (ASME Y14.5)

DFM / DFA

Geometric tolerances

Tool steels

Heat treatment

Mold cooling design

Hot runner systems

Hydraulic/Pneumatic systems

Injection molding processes

Engineering drawings

BOM creation

Revision control

Root Cause Analysis

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📌 Mold Designer (Injection Molds) (Centro-Norte)
🏢 Industrias Hunter, S. De R. L. De C. V.
📍 Centro-Norte