Job Description

Job Description

Job Description

Description:

Rosti is a leading manufacturer in the plastics and injection molding industry, delivering innovative, high-quality solutions for the automotive, consumer goods, and medical device sectors. With a global footprint, we combine technical expertise, advanced production capabilities, and a commitment to sustainability to support our customers from concept to reality..

Role Overview

We are seeking a highly skilled Mold Maker with extensive experience in CNC machining, EDM operations, and CAM programming to join our tooling department. The ideal candidate will have a strong background in modeling, pathing, and cutting electrodes, pathing and cutting steel The role involves manufacturing, modifying, and maintaining precision injection mold tooling to the highest quality standards. This is a hands-on position that also requires problem-solving, mentoring junior toolmakers, and working closely with engineering and production teams.

Essential Duties And Responsibilities

This list of duties and responsibilities is not all inclusive and may be expanded to include other duties and responsibilities as management may deem necessary at any time.

• Manufacture, assemble, and fit precision injection mold components using CNC milling, turning, grinding, and EDM processes.
• Create and optimize CAM programs for CNC machining operations (e.g., Mastercam, Powermill, or equivalent).
• Interpret 2D drawings and 3D CAD models to produce accurate tooling components.
• Set up and operate CNC machines (Hurco), sinker EDM (Mitsubishi) equipment to achieve tight tolerances and high-quality surface finishes.
• Model, program and cut electrodes for the plastics injection molding process.
• Generate and optimize cutter paths for both carbon and steel materials.
• Perform tooling modifications, repairs, and maintenance based on engineering change requests.
• Collaborate with tooling engineers and designers to provide feedback on manufacturability and process improvements.
• Troubleshoot tooling issues and recommend corrective actions.
• Maintain tooling documentation, including setup sheets, programs, and maintenance records.
• Mentor and train toolmakers on best practices, precision techniques, and safety.

• Minimum 5–8 years of experience as a Mold Maker in injection molding.
• Journey-level status or equivalent experience.
• Strong expertise in CNC machining and sinker EDM.
• Proficient in CAM programming and familiar with major CAM software (e.g., Mastercam, Powermill, Hypermill).
• Ability to read and interpret complex engineering drawings and 3D models.
• Solid knowledge of tool steels, heat treatment, and precision machining techniques.
• Experience with mold assembly, fitting, and troubleshooting.
• High attention to detail and ability to maintain tight tolerances.
• Strong problem-solving skills and mechanical aptitude.
• Effective communication and teamwork skills.

Why Rosti?

• Rosti is a world leader in plastic injection molding with manufacturing across the globe
• Rosti is committed to sustainability and reducing our environmental impact
• Health, Dental Vision Insurance
• 401K with company match
• Voluntary Benefits
• Paid Time Off
• Paid Holidays
• Overtime Available

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