Injection–Blow Molding Process Engineer

Crosslinked

St. Louis (MO)

On-site

USD 88,000 - 103,000

Full time

8 days ago

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Job summary

Crosslinked in St. Louis, MO is seeking an Injection–Blow Molding Process Engineer to join our on-site manufacturing team.

You will drive process improvements on active lines, troubleshoot molding equipment, and partner with maintenance and quality to sustain peak throughput and product quality. You’ll apply hands-on experience with ISBM/IBM/IM machinery (Aoki, Uniloy, Zhongya), perform root cause analysis, and optimize oven profiles while leading project initiatives and ensuring safe, reliable

Qualifications

Bachelor’s or associate’s degree in mechanical/plastics engineering or related field.
Reheat blow process and automation experience.
Hands-on familiarity with Aoki ISBM/IBM/IM, Uniloy IBM, and Zhongya IM machinery.
Root cause analysis and troubleshooting expertise.
Experience setting oven profiles.
Infeed and outfeed conveyor experience.
Effective leadership and decision-making; able to lead and drive project teams.
Training or experience in Lean Manufacturing practices.
Ability to travel and train as needed throughout the region.

Responsibilities

Start up and calibrate molding equipment; perform checks and resolve issues.
Coordinate production schedules for maximum efficiency.
Diagnose process defects and implement corrective actions.
Lead line changes and tool changes for new runs.
Set cycles, pressures, and temperatures; ensure safety and quality.
Maintain housekeeping and safe operating practices.
Review daily check sheets and verify preventive maintenance.

Skills

Reheat blow process

Aoki ISBM/IBM/IM

Uniloy IBM

Zhongya IM

Root cause analysis

Oven profile setting

Conveyor experience

Leadership

Lean manufacturing

Willing to travel

Education

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

Tools

Aoki ISBM systems

Uniloy IBM systems

Zhongya IM systems

Job description

Crosslinked

Jobs/Thermoplastics/Injection–Blow Molding Process Engineer

Injection–Blow Molding Process Engineer

Pretium Packaging

Location: St. Louis, MO

$88k – $103kfrom the posting

Seniority

Mid-level

Work

On-site

Type

Full-time

Degree

Associate

Industry

Packaging

Role

Process Engineering

Schedule

Standard

Materials

PA61PA661

Techniques

root cause analysis183setting oven profiles

Location: St. Louis, Missouri

Company: Pretium Packaging

You walk the plant floor before most people have had their first coffee. A molding line is warming up; sensors blink to life. You run through start-up checks, verify calibrations, and fine-tune oven profiles so every preform hits the sweet spot. A labeler needs a timing tweak, an Aoki ISBM cell awaits a mold change, and production wants your go/no-go on a new run. This is where you thrive—hands-on, in the process, keeping quality and throughput in lockstep.

About Pretium

Founded in 1992, Pretium Packaging is a leading supplier of injection‑blow molded plastic containers. With 20 manufacturing locations across North America, we deliver innovative, high‑performance packaging to brand owners throughout the U.S. and Canada—backed by superior quality, value, and customer service.

Your Impact

As a Process Engineer, you’ll collaborate with production, maintenance, quality, and tooling to keep molding lines running to spec. You’ll diagnose process defects, implement corrective actions, and establish stable, efficient parameters that meet demanding quality standards.

What a day could look like

Start up new and existing equipment; perform loop checks; calibrate; troubleshoot; resolve system issues to verify proper operation.
Respond to urgent work orders; analyze software/hardware problems; validate fixes and restore performance.
Direct system installations to ensure specs and safety requirements are met for both personnel and vendors.
Define internal quality control plans, including gauging methods and inspection frequency.
Assist with new project setups, tool changes, and program adjustments for smooth launches.
Troubleshoot production process issues; propose alternatives to protect schedules and maintain product quality.
Modify existing systems—software and circuitry—to achieve project objectives.
Recommend improvements that drive safe, reliable operation of newly installed equipment.
Review daily check sheets for accuracy; identify anomalies and initiate corrective action.
Oversee changeovers to ensure they’re on time and executed correctly.
Verify preventive maintenance is performed per schedule and documented accurately.
Promote strong housekeeping and safe operating practices.
Ensure weekly setup sheets are completed for all lines; investigate deviations and follow up.
Investigate and resolve product quality issues through root cause analysis.
Troubleshoot equipment breakdowns; replace or rebuild machine components as needed.
Set up molding machines and trimmers; align/install molds; set cycles, air pressures, and water temps; position labelers; change over and adjust reamers, trim stations, and material inspection systems; dial in sequence timing.
Coordinate production schedules for maximum efficiency and productivity.
Implement line improvements that lift productivity and enhance product quality.
Process new molds/tooling, establishing run parameters for best efficiency.

What you bring

Bachelor’s or associate’s degree in mechanical/plastics engineering or related field.
Reheat blow process and automation experience.
Hands‑on familiarity with Aoki (ISBM/IBM/IM), Uniloy (IBM), and Zhongya (IM) machinery.
Root cause analysis and troubleshooting expertise.
Experience setting oven profiles.
Infeed and outfeed conveyor experience.
Effective leadership and decision‑making; able to lead and drive project teams.
Strong organization, accuracy, and attention to detail.
Training or experience in Lean Manufacturing practices.
Ability to travel and train as needed throughout the region.

Why Pretium

We manufacture rigid plastic containers for some of the most recognized brands. Our plants emphasize safety, performance, and continuous improvement—giving you the platform to make a measurable impact while growing your career.

Technical strengths we value