Packaging Engineer

Overview

United Bags, Inc. is a fifth-generation, family-owned leader in industrial bag and bulk packaging solutions, proudly operating since 1890. From FIBCs (bulk bags) to woven polypropylene, paper bags, and fully customized packaging solutions, we support customers across a wide range of industries throughout North America and beyond.

With global manufacturing partnerships, four U.S. distribution centers, and a legacy built on quality and trust, United Bags combines long-term stability with a forward-thinking, innovation-driven culture.

Packaging Engineer — On-Site | St. Louis, MO

United Bags, Inc. is a fifth-generation, family-owned leader in industrial bag and bulk packaging solutions, proudly operating since 1890. From FIBCs (bulk bags) to woven polypropylene, paper bags, and fully customized packaging solutions, we support customers across a wide range of industries throughout North America and beyond.

With global manufacturing partnerships, four U.S. distribution centers, and a legacy built on quality and trust, United Bags combines long-term stability with a forward-thinking, innovation-driven culture.

We are seeking a hands-on, solutions-oriented Packaging Engineer to join our team on-site in St. Louis, Missouri. In this role, you’ll take ownership of the technical performance and continuous improvement of our industrial packaging products—from concept and design through testing, production, and real-world use.

You’ll work cross-functionally with sales, operations, supply chain, and domestic and international manufacturing partners, playing a critical role in delivering high-quality, durable, and cost-effective packaging solutions that meet real customer needs.

If you enjoy seeing your designs move from drawing board to production floor—and ultimately into customers’ hands—this role is for you.

Product Design & Engineering

• Design and engineer FIBCs, woven polypropylene bags, paper bags, and custom industrial packaging solutions
• Develop and maintain technical drawings, specifications, and product documentation
• Translate customer requirements into engineered, manufacturable packaging solutions

Testing, Quality & Performance

• Conduct product testing, load validation, and failure analysis
• Ensure products meet safety, quality, and performance standards
• Collaborate with suppliers to review materials, construction methods, and compliance requirements
• Investigate quality issues and drive corrective actions

Manufacturing & Supplier Collaboration

• Work directly with domestic and international manufacturing partners to ensure accurate production
• Support procurement and operations in evaluating supplier capabilities and materials
• Help resolve technical issues related to manufacturing, logistics, or product performance
• Maintain and update manufacturing partner certifications

Continuous Improvement & Sustainability

• Identify opportunities to improve product durability, manufacturability, and cost efficiency
• Optimize existing products using customer feedback, performance data, and industry trends
• Support sustainability initiatives through smart material selection, design efficiency, and waste reduction

Customer & Sales Support

• Act as a technical resource for the sales team and key customers
• Participate in customer meetings to discuss performance expectations and custom solutions
• Create technical data sheets, product documentation, and training materials
• Manage customer claims in collaboration with sales and manufacturing partners

Required Qualifications

• Bachelor’s degree in Mechanical Engineering, Industrial Engineering, Packaging Engineering, or a related field
• 2+ years of engineering experience in packaging, textiles, manufacturing, or related industries
• Strong understanding of materials, structural integrity, load testing, and product design fundamentals
• Excellent analytical, problem-solving, and project management skills
• Strong communication skills and ability to collaborate across teams
• Willingness to travel as needed for customer visits, claims, and product development

Preferred Experience

• Experience with FIBCs, woven polypropylene, industrial packaging, or sewn-goods…