Plastics Engineer

HRmango; Ewing Township (NJ); On-site; USD 100,000 - 150,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k)

Life insurance

Short-term disability

Career-growth opportunities

Job summary

HR Mango seeks a hands-on Plastics Engineer to advance tooling and injection molding operations for a growing manufacturing client. The role emphasizes entrepreneurship, innovation, and building new capabilities, including automation, robotics, and AI.

The successful candidate will lead projects from concept to production, optimize processes, and drive improvements in cycle times, quality, and efficiency. On-site work in New Jersey is required.

Qualifications

• Bachelor's degree in Plastics Engineering or related field.
• Hands-on plastic injection molding and tooling experience.
• Strong troubleshooting and process-improvement skills.
• Entrepreneurial, builder-focused mindset with ability to turn ideas into action.
• Excellent communication, collaboration, and project leadership abilities.
• Must be local and able to work on-site.

Responsibilities

• Lead tooling and plastic injection molding projects from concept through production.
• Develop, optimize, and troubleshoot injection molding processes.
• Improve cycle times, product quality, material performance, and manufacturing efficiency.
• Support mold trials, validation, root-cause analysis, and process documentation.
• Evaluate tooling, materials, equipment, and emerging manufacturing technologies.
• Collaborate with operations, quality, engineering, and leadership teams.
• Identify new product applications, processes, and market opportunities.

Skills

Injection molding

Tooling

Process optimization

Troubleshooting

Root-cause analysis

Project leadership

Communication

On-site work

Education

Bachelor's degree in Plastics Engineering

Tools

Mold design

Mold trials

Scientific molding

Automation experience

Machine integration

Job description

HR Mango is seeking a hands-on Plastics Engineer to support and advance tooling and injection molding operations for a growing manufacturing client.

This role is ideal for an entrepreneurial engineer who wants to build, innovate, and improve processes—not simply maintain existing operations. The successful candidate will help develop new manufacturing capabilities and applications, including opportunities involving automation, robotics, and AI.

Key Responsibilities

• Lead tooling and plastic injection molding projects from concept through production.
• Develop, optimize, and troubleshoot injection molding processes.
• Improve cycle times, product quality, material performance, and manufacturing efficiency.
• Support mold trials, validation, root-cause analysis, and process documentation.
• Evaluate tooling, materials, equipment, and emerging manufacturing technologies.
• Collaborate with operations, quality, engineering, and leadership teams.
• Identify new product applications, processes, and market opportunities.

Required Qualifications

• Bachelor’s degree in Plastics Engineering, Polymer Engineering, Mechanical Engineering, or a related field.
• Hands-on plastic injection molding and tooling experience.
• Knowledge of molding processes, tooling, materials, and manufacturing equipment.
• Strong troubleshooting, root-cause analysis, and process-improvement skills.
• Entrepreneurial, builder-focused mindset with the ability to turn ideas into action.
• Strong communication, collaboration, and project leadership skills.
• Must be local and able to work on-site.

Preferred Qualifications

• Experience with mold design, mold trials, validation, or scientific molding.
• Familiarity with automation, robotics, sensors, or machine integration.
• Experience leading manufacturing or continuous-improvement projects.
• Interest in AI and emerging manufacturing technologies.

Compensation and Benefits

• $100,000–$150,000 annually.
• Medical, dental, and vision insurance.
• 401(k), life insurance, and short-term disability.
• Career-growth and leadership opportunities.

Hands-on tooling and plastic injection molding experience is required.

Education:

• Bachelor's (Required)

Experience:

• Plastics injection molding: 2 years (Required)