ISBM Process Engineer – Injection‑Blow Mastery

Torrey Holistics; St. Louis (MO); On-site; USD 75,000 - 110,000; Full time

Job summary

Pretium Packaging is seeking a Process Engineer in St. Louis to join a hands-on team ensuring injection‑blow molding lines run at peak performance. You will calibrate equipment, diagnose defects, and implement corrective actions to meet strict quality standards.

You will collaborate with production, maintenance, quality, and tooling to start up equipment, resolve issues, and drive line improvements for productivity and safety across multiple molding lines.

Qualifications

• Bachelor’s or associate’s degree in mechanical/plastics engineering or related field.
• Hands-on familiarity with Aoki (ISBM/IBM/IM), Uniloy (IBM), and Zhongya (IM) machinery.
• Root cause analysis and troubleshooting expertise.
• Experience setting oven profiles and running reheat blow process.
• Experience with infeed/outfeed conveyors and line changeovers.
• Lean Manufacturing training or experience.

Responsibilities

• Start up new and existing molding equipment and perform calibrations.
• Diagnose process defects and implement corrective actions.
• Define quality control plans and inspection frequencies.
• Coordinate line setup and run parameters for new molds/tooling.
• Troubleshoot production issues and propose improvements to protect schedules.
• Lead project teams and drive improvements for safe, reliable operation.

Skills

Reheat blow process

Automation experience

Root cause analysis

oven profile tuning

Conveyor systems

Lean manufacturing

Leadership

Travel willingness

Aoki ISBM familiarity

Uniloy IBM familiarity

Zhongya IM familiarity

Education

Bachelor’s degree in mechanical/plastics engineering or related field

Associate’s degree in mechanical/plastics engineering or related field

Job description

Pretium Packaging is seeking a Process Engineer in St. Louis to join a hands-on team ensuring injection‑blow molding lines run at peak performance. You will calibrate equipment, diagnose defects, and implement corrective actions to meet strict quality standards.

You will collaborate with production, maintenance, quality, and tooling to start up equipment, resolve issues, and drive line improvements for productivity and safety across multiple molding lines.