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Plastics Engineer

The Lee Company
Essex, CT Full Time
POSTED ON 5/16/2026 CLOSED ON 6/14/2026

What are the responsibilities and job description for the Plastics Engineer position at The Lee Company?

Job Description:

Plastics Project Engineers lead all aspects of plastic component lifecycle, from initial concept through design, testing, and production within an active manufacturing environment. This pivotal role involves prototyping, testing, analysis, and managing the entire product realization process. They are responsible for the design of precision plastic and elastomeric parts, injection molds, and transfer molds, ensuring exacting workmanship standards for dimensionally accurate, repeatable, and flash-free parts. Plastics Engineers engage in extensive cross-functional collaboration with management, engineering, mold makers, operators, and vendors to continuously improve part, tooling, and processes.


Responsibilities:

  • Perform engineering duties and assignments that include design, detailing, sustaining, and maintaining precision plastic and elastomeric parts, injection molds, and transfer molds.
  • Enforce exacting workmanship standards for dimensionally accurate, repeatable, and flash-free parts.
  • Work with engineering, mold makers, and mold operators to continuously improve part, tooling, and processes associated with molding operations. Initiate and document mold repairs, track spare parts, and implement improvements.
  • Prepare of drawings, calculations, analysis, and specifications. Ensure accuracy of designs, dimensions, tolerances, specifications, etc.
  • Design fixtures and experiments to prove part conformance and performance.
  • Work with manufacturing to methodize production operations, tooling requirements, feasibility, and cost estimates, etc.
  • Document and maintain process specifications and work instructions associated with molding as well as participate in MRB.
  • Work with purchasing on vendor relations and specification development for purchased equipment/tools.


Qualifications:

  • B.S. degree in Plastics Engineering, or similar engineering discipline from an accredited university.
  • At least five years of experience with plastic part design, mold design, tool design, injection molding operations and manufacturing engineering.
  • A desire to learn about new developments in the plastics engineering field and an interest in following that progress through trade shows, professional texts, technical papers, etc.
  • Medical\Scientific design experience preferred.
  • Proficiency with design tools such as SolidWorks, TopSolid, Moldex3D or similar.

Salary.com Estimation for Plastics Engineer in Essex, CT
$97,433 to $117,118
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