Manufacturing Process Engineer - Extrusion Blow Molding in NEPTUNE CITY, New Jersey at Flexcraft

Flexcraft is growing—and we’re hiring a hands-on Process Engineer with extrusion blow molding experience to help improve performance, reduce scrap, and support new product launches.

If you’re currently working in plastics manufacturing and want a role where you can own the process, solve real problems, and drive measurable results, this is worth a look.

• Competitive salary based on experience (aligned to experienced plastics engineers)
• Work directly on blow molding processes—not just theoretical work
• High-visibility role with ownership of scrap, cycle time, and uptime
• Opportunity to implement improvements, not just recommend them
• Stable, growing manufacturing environment

• Extrusion blow molding processes
• Polymer materials and process parameters
• Cycle time, scrap reduction, and productivity improvements
• Tooling, molds, and equipment performance
• New product launches and process validation

• Optimize processes to improve cycle time, quality, and efficiency
• Troubleshoot production issues directly on the floor
• Lead root cause analysis and implement permanent solutions
• Support new product launches, mold trials, and validations
• Partner with Production, Maintenance, and Quality teams
• Develop SOPs and standardize best practices

• 5+ years of process engineering experience in plastics manufacturing
• Hands-on experience with extrusion blow molding strongly preferred
• Proven ability to troubleshoot and optimize processes in production
• Strong understanding of materials, tooling, and molding equipment
• Experience with SPC, DOE, or Six Sigma tools (preferred)
• Comfortable working on the production floor—not just at a desk

This is an onsite, hands-on role supporting a 24/7 manufacturing operation.

The position requires regular presence on the production floor and alignment with 12-hour production shifts as needed to support troubleshooting, process improvements, and key production activities.

This structure allows you to be closer to the process, respond in real time, and make faster, more effective improvements—not just analyze problems after the fact.

A typical day could include troubleshooting a process issue on the floor, running a trial, and working directly with operators to stabilize and improve performance.

Flexcraft is a family-owned manufacturing company with over 50 years of experience and a growing nationwide presence.

• Ownership – We take accountability and drive results
• Workmanship – We take pride in quality
• Never Settle – We continuously improve
• Integrity – We do the right thing
• Team First – We win together

If you like being close to the process and making improvements that stick, you’ll fit in here.

If you’re working in plastics today and want a role where you can own process performance and drive real improvements, we’d like to talk.

Important: We use Culture Index as part of our hiring process.
Please complete this quick 5-minute survey to be considered: