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Serioplast

Global rigid packaging producer and recycler

Injection Molding Technologist

Full-Time
$80k - $110k/yr
Senior
St. Louis, MO, USA
In PersonRelocation to St. Louis, Missouri, United States is required.
Manufacturing & Production OperationsMachine & Process Operation

About the job

Requirements
  • Excellent knowledge of plastic injection molding technology, with specific experience in injection molding machines for PET preforms on high-cavitation molds.
  • Applied knowledge of mechanics, pneumatics, hydraulics, electrical and/or electronic systems.
  • Applied knowledge of measuring instruments and techniques.
  • Applied knowledge of WCM standards.
  • Solid experience working with industry-specific technologies and production processes.
  • Fluency in English.
  • Availability to relocate to St. Louis, Missouri, United States.
Responsibilities
  • Serve as a key point of reference for Technologists and support the Technical Manager in setting priorities, removing bottlenecks, and addressing critical issues.
  • Set up product recipes, ensuring all required regulations and PLC parameters are correctly applied.
  • Perform mechanical and electronic adjustments and monitor production variables to ensure product specifications are met.
  • Investigate and troubleshoot quality issues.
  • Train and support production staff in resolving minor technical problems affecting product quality.
  • Carry out electromechanical installation and setup of machines and equipment, including compressors, air conditioning systems, dryers, leak testers, cameras, and palletizers.
  • Develop solutions by fabricating mechanical or other components to address production or technical issues and improve machine performance.
  • Support the Technical Manager in continuous improvement projects and decisions regarding machines, equipment, molds, and processes.

About the company

Serioplast produces rigid plastic packaging for major FMCG brands across home care, laundry, personal care, pharma, and food & beverage markets. It also designs and engineers its own machines and moulds, regenerates waste into recycled plastic, and operates as a contract manufacturer. How it works: customers receive rigid plastic packaging designed for their products; Serioplast handles the manufacture end-to-end, including in-house tooling and machinery; it recycles waste into recycled plastic to support sustainable production. How it stands out: the company combines packaging production with in-house equipment and mould design, recycling capabilities, and contract manufacturing, enabling simple, flexible, and sustainable solutions that cover both packaging and process technology. Its goal: to deliver reliable, high-quality packaging with sustainable materials and processes while meeting customer needs globally.

Company Size

501-1,000

Company Stage

Debt Financing

Total Funding

$5.5M

Headquarters

Seriate, Italy

Founded

1974

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Simplify's Take

What believers are saying

  • Virginia investment totaled $25.725 million, signaling management confidence in North American demand.
  • Revelio Labs showed 1,051 employees in March 2026, up 7% since 2023.
  • PRSE 2026 and SerioLoop activity show active recycling demand and partnership momentum.

What critics are saying

  • 45-job Virginia ramp depends on flawless startup after 2026 expansion spending.
  • Rigid plastic packaging faces customer concentration risk from Procter & Gamble and Unilever.
  • ESG claims invite scrutiny; Europe recyclable-packaging rules tighten from August 2026.

What makes Serioplast unique

  • March 2026 Mount Jackson, Virginia opened with advanced automation and high-efficiency capacity.
  • Unilever and Serioplast cut packaging prototyping lead times 70% using 3D-printed molds.
  • Serioplast supports PCR circular packaging through SerioLoop and CentroPlastica partnerships in Italy.

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Benefits

  • Performance Bonus
  • Commuter Benefits
  • Training Programs
  • Professional Development Budget
  • 401(k) Company Match
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Health Savings Account/Flexible Spending Account
  • Paid Vacation

Growth & Insights and Company News

6 month growth

6%

1 year growth

6%

2 year growth

10%
Machines Italia
Jun 17th, 2025
Serioplast To Open Manufacturing Site In Shenandoah County, Virginia

Serioplast, a global plastic packaging manufacturer based in Italy, will invest $25.7 million to establish a 140,000-square-foot facility in Shenandoah County, Virginia, creating 45 new jobs.

Trend Hunter
May 12th, 2025
3D-Printed Packaging Molds

Unilever, a global fast-moving consumer goods company, has collaborated with Serioplast, a packaging manufacturer, to implement 3D printed molds within its packaging development process.