Injection Mold Designer & Project Lead

Plas-Tech Engineering LLC; Lake Geneva (WI); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

401(k)

Dental insurance

Health insurance

Paid time off

Tuition reimbursement

Vision insurance

Job summary

Plas-Tech Engineering LLC seeks an experienced Injection Mold Designer to create high-precision molds for injection molding using SolidWorks. This role collaborates with product engineering, toolmaking, and manufacturing to deliver robust, cost-effective mold solutions that meet quality, cycle time, and reliability targets.

Candidate must demonstrate strong project management to deliver on time and budget. 3–7 years of mold design experience and expert SolidWorks skills are required, with a

Qualifications

• 3–7 years of injection mold design experience (multi-cavity, family tools, hot runner, complex actions).
• Expert proficiency with SolidWorks for mold design and 2D detailing (required).
• Demonstrated project management experience leading mold projects from concept through T1 and handover, including schedule, cost, risk, and stakeholder management.
• Strong knowledge of machining processes, EDM, tolerancing, and mold steel selection (H13, P20, S7, stainless).
• Understanding of polymer behavior, shrinkage, rheology, and design-for-molding principles.
• Hands-on exposure to mold tryouts, sampling, and troubleshooting in press.
• Familiarity with hot runner systems and best-practice cooling design.
• Ability to read and produce detailed drawings; manage ECOs and revision control.
• Strong collaboration and communication skills.

Responsibilities

• Translate part models and product requirements into complete mold designs (2D/3D) in SolidWorks, including core/cavity, gating, runners, hot/cold manifold, cooling, ejection, slides/lifters, and venting.
• Perform parting line development, draft analysis, shrinkage/warpage allowances, and steel-safe strategies.
• Conduct DFM/DFMEA and mold-flow/pre-simulation reviews to optimize gate location, filling, packing, and cooling.
• Select materials, standard components, and mold bases; specify surface finishes and tolerances.
• Create detailed drawings/BOMs for machining, EDM, and assembly; release to toolroom and suppliers.
• Collaborate with machining and EDM teams on manufacturability, tolerances, and sequencing.
• Lead project management for assigned tools: define scope, build schedules, manage risk/mitigations, track costs, run design reviews, and drive issues to closure with cross-functional teams and suppliers.
• Support mold build, sampling, and validation.
• Optimize cooling circuits and conformal cooling where applicable for cycle time and dimensional stability.
• Implement hot runner and valve gate solutions; specify controls, wiring, and maintenance considerations.
• Document design standards, lessons learned, and maintain design libraries and templates.
• Support cost estimating and quoting with design concepts and risk assessment.
• Ensure compliance with safety, regulatory, and customer-specific standards.

Skills

SolidWorks proficiency

Project management

Cross-functional teamwork

Communication skills

Education

AS/BS in Mechanical/Manufacturing Engineering

Tools

SolidWorks

Job description

Plas-Tech Engineering LLC seeks an experienced Injection Mold Designer to create high-precision molds for injection molding using SolidWorks. This role collaborates with product engineering, toolmaking, and manufacturing to deliver robust, cost-effective mold solutions that meet quality, cycle time, and reliability targets.

Candidate must demonstrate strong project management to deliver on time and budget. 3–7 years of mold design experience and expert SolidWorks skills are required, with a