Senior Toolmaker - Injection Mold Specialist

Company Description

Sealed Air designs and delivers packaging solutions that protect essential goods transported worldwide, preserve food, enable e-commerce and digital connectivity, and help create a global supply chain that is touchless, safer, less wasteful, and more resilient. Westrive to foster a caring, high-performance growth culture that will deliver consistent, sustainable profitable growth and accelerate our performance – a culture where accountability is clear and aligned, and where we reward business outcomes and impact.

That culture guides everything we do, including how we partner with our customers and suppliers, how we attract and retain top talent, and how we create and deliver value for our stakeholders. In 2024, Sealed Air generated $5.4 billion in revenue and had approximately 16,400 employees distributing products and services to 117 countries/territories around the world. To learn more, visit .

Liquibox, under the Sealed Air organization - This role supports Liquibox with Sealed Air as part of the Lester Prairie Team, helping deliver innovative packaging solutions to customers across the region. We are seeking an experienced Senior Toolmaker specializing in plastic injection mold maintenance and repair to join our manufacturing team. In this high-skill position, you will maintain, troubleshoot, and repair complex injection mold tooling while supporting our production operations and mentoring junior team members.

Schedule

• Shift Options:Afternoon (3:00 PM - 11:00 PM) or Night Shift (11:00 PM - 7:00 AM)
• Work Pattern:Monday-Friday or Rotating Schedule 2/2/3

Pay rate:$40.50 - $52/hr(commensurate with experience)
Night Shift Differential: $2.00

Essential Responsibilities

• Perform precision maintenance, repair, and setup of plastic injection molds ranging from single-cavity to complex multi-cavity high-volume tooling
• Disassemble, clean, and inspect complex mold components, including handling tools weighing thousands of pounds using overhead crane equipment
• Execute tooling changeovers and setups to meet production specifications and schedules
• Troubleshoot visual defects and dimensional issues in plastic parts through bench work and in-press analysis
• Operate precision toolroom equipment including CNC mills, lathes, EDM machines, and surface grinders to fabricate or repair mold components
• Maintain and troubleshoot hot runner systems and components
• Provide technical guidance and training to junior toolmakers and apprentices
• Recommend design modifications to improve tooling performance and longevity
• Participate in continuous improvement initiatives and maintain 5S standards in work areas
• Support production needs through responsive troubleshooting and emergency repairs

Requirements:

• Education:Associate's degree or diploma in Tool & Die, Precision Machining, or related machine trades program
• Experience:2-5 years of hands-on experience with plastic injection mold assembly, disassembly, and repair
• Technical Skills:
  • Proficient in toolroom equipment operation (mills, lathes, grinders, EDM)
  • Experience with hot runner systems troubleshooting and maintenance
  • Blueprint reading and GD&T interpretation
  • Precision measurement techniques and equipment usage
  • Strong mechanical aptitude and spatial reasoning
• Additional Skills:
  • Problem-solving and analytical thinking abilities
  • Mathematical skills for dimensional calculations
  • Ability to work independently and collaboratively
  • Strong organizational skills and attention to detail
  • Effective communication skills for cross-functional teamwork

Physical Requirements

Position requires standing for extended periods, lifting and manipulating tools and components (with mechanical assistance for heavy items), and performing detailed work requiring good manual…