Process Engineer - Injection Molding

ZipRecruiter; Buffalo Grove (IL); On-site; USD 119,000 - 165,000; Full time

Job summary

A global leader in advanced manufacturing seeks a Principal Process Engineer – Injection Molding for their team in Libertyville, IL. The role involves leading process development and improvements across thermoplastic injection molding operations. Candidates should have 10-15 years of relevant experience and a degree in plastics or injection molding engineering. The company offers competitive compensation, benefits, and a growth-focused work culture.

Benefits

Competitive compensation and full benefits

Matching 401(k)

PTO

Tuition reimbursement

Growth-focused, respectful, and inclusive work culture

Qualifications

• 10–15 years of experience in injection molding, tooling, and process development.
• Experience with scientific molding (RJG / E-Dart).
• Familiarity with cleanroom environments (Class 7 or 8).

Responsibilities

• Develop and validate molding processes (IQ, OQ, PQ) for production.
• Troubleshoot production issues and identify root causes.
• Lead continuous improvement initiatives related to cost, quality, and efficiency.

Skills

Injection molding

Tooling

Process development

Data/statistical analysis

Education

Degree in plastics or injection molding engineering

Tools

Excel

Minitab

Job description

Job DescriptionJob DescriptionLocation: Libertyville, IL
Salary: $119,300 – $164,100 per year
A global leader in advanced manufacturing is seeking a Principal Process Engineer – Injection Molding to join their high-performing team in Libertyville, IL. This engineer will lead process development, support daily production, and drive improvements across thermoplastic injection molding operations.
What You’ll Do:

• Develop and validate molding processes (IQ, OQ, PQ) for production
• Troubleshoot production issues and identify root causes
• Lead continuous improvement initiatives related to cost, quality, and efficiency
• Define process parameters and implement process controls
• Oversee the installation and validation of new equipment
• Train production teams and support technology transfers

What We’re Looking For:

• 10–15 years of experience in injection molding, tooling, and process development
• Experience with scientific molding (RJG / E-Dart )
• Familiarity with cleanroom environments (Class 7 or 8)
• Skilled in data/statistical analysis using Excel, Minitab, or similar tools
• Degree or equivalent experience in plastics or injection molding engineering

What You’ll Receive:

• Competitive compensation and full benefits
• Matching 401(k), PTO, and tuition reimbursement
• Growth-focused, respectful, and inclusive work culture

If you're ready to take ownership of impactful projects and elevate your career, apply now.#pro1