Precision Injection Mold Toolmaker; CNC​/EDM

Join a Team That Builds What Others Imagine At Moldtronics, Inc.—a privately held contract manufacturer in Downers Grove, Illinois—we’ve been crafting high‑precision solutions since 1955. Our customers span aerospace, defense, medical, agriculture, IoT, and commercial markets, and they rely on us for custom injection molding, mold making, CNC machining, and end‑to‑end manufacturing.

Day in the Life You’ll start your morning reviewing CAD models and blueprints alongside engineering. By mid‑day, you’re at the controls of Haas CNC mills or on the sinker/orbital EDM, machining precision components that bring a new plastic injection mold to life. In the afternoon, you’re inspecting tight‑tolerance work, fitting and assembling tooling, and collaborating with production and quality to troubleshoot part performance.

You’ll wrap up by refining a Mastercam program and noting a design tweak that will make the next build even better.

What You’ll DoBuild and repair plastic injection molds from CAD models, blueprints, and engineering specifications

Operate CNC mills, vertical mills, sinker/orbital EDM machines, and surface grindersCNC machine precision parts and components to specification

Create your own programs using Mastercam Read and interpret blueprints, CAD models, and technical drawings with accuracy

Perform quality inspections using precision measuring equipment

Troubleshoot tooling and part-quality issues in collaboration with engineering and production teams

Assist with other related duties as required or assigned

Contribute to continuous improvement of mold design and manufacturing processes

What You Bring5+ years of injection mold making and/or mold repair experience

The ability to build plastic injection molds using mold designs, CAD models, blueprints, and engineering drawings

Strong knowledge of injection mold construction, operation, maintenance, and repair

Ability to read and interpret mold designs, blueprints, CAD models, tolerances, and engineering specifications

Experience with mills, lathes, surface grinders, and standard Tool Room equipment

Strong precision machining, fitting, inspection, and troubleshooting skills

Experience working to close tolerances using precision measuring equipmentCNC experience requiredCAD/CAM experience required

Ability to work independently or with a team Compensation & Schedule $30.00–$45.00 per hour, depending on experience and skills.

Full-time Monday–Friday7:00 AM–4:00 PMOn-site in Downers Grove, Illinois Overtime may be available based on production needs

Benefits

Moldtronics offers a comprehensive benefits package, including:

Medical, dental, vision, and prescription drug coverage

Health Savings Account (HSA)401(k) with company match

Company-paid basic life insurance

Disability insurance
10 Paid holidays

Paid time off Employee Assistance Program (EAP)
Employee referral program

Core Proficiencies Mechanical Troubleshooting Skills Manual Machining Skills Tool/Die/Mold Repair Skills Injection Molding Experience Blueprint Reading Close-Tolerance MachiningCNC MachiningEDM Machining Injection Mold Design Injection Mold Making / Mold Making Mold Building / Mold Construction Mold Fitting & Assembly Mold Troubleshooting Equipment & TechnologiesCNC Mill (3-4 axis VMC) (Haas)
Surface Grinder (Okamoto)
CNC Lathe (2-4 axis) (Haas)
Manual Vertical Mill (Bridgeport)
CAD Software (Solidworks)
CAM Software (Mastercam)
CNC Lathe (2–4 Axis)
EDM – Sinker EDMEqual Opportunity Moldtronics, Inc. is an Equal Opportunity Employer.