SR PRODUCT DEVELOPMENT ENGINEER - MANUFACTURING

Mayzon•New Castle, DE

14d

About The Position

The Senior Product Development Engineer – Plastics for Mayzon is responsible for leading the design, development, validation, and transfer of plastic injection-molded products into volume manufacturing. This role provides technical leadership across product design, material selection, tooling, mold flow analysis, supplier execution, and manufacturing readiness, ensuring products are manufacturable, cost-effective, and meet quality and performance requirements.

Requirements

Bachelor’s Degree in Plastics Engineering, Mechanical Engineering, or Manufacturing Engineering
7+ years of hands-on experience in plastic injection-molded product development and design
Strong knowledge of plastic materials, molding processes, and tooling fundamentals
Proven experience working with mold builders, tooling suppliers, material suppliers, and manufacturing partners
Proficiency in SolidWorks and Microsoft Office
Ability to manage multiple development projects in a fast-paced manufacturing environment
Strong problem-solving, communication, and cross-functional collaboration skills

Nice To Haves

Experience with prototype development and laboratory testing
Knowledge of wood processing materials and equipment
Experience in sales-driven or consumer product manufacturing environments

Responsibilities

Serve as a core member of the Product Engineering team, providing Design for Manufacturability (DFM) input for plastic injection-molded components
Engineer products from concept through design transfer into volume production
Evaluate and approve plastic part designs, materials, and manufacturing methods
Review and assess tool design, mold performance, and mold flow analysis including fill, warp, pressure, and balance
Act as technical liaison between tooling suppliers, plastic injection molders, Product Development, Manufacturing, and Quality
Lead and support tool and process development, resolving technical issues in real time
Work directly with global tooling suppliers and injection molders to deliver robust production molds at competitive cost
Develop cost models for plastic components, materials, labor, and tooling to ensure product profitability
Support manufacturing by investigating and resolving quality, process, and performance issues
Drive design transfer activities, ensuring tooling, process capability, and documentation are production-ready
Partner with Supply Chain to evaluate supplier capacity, technical capability, and scalability to support growth
Introduce and evaluate advanced plastic molding technologies to support innovation and continuous improvement