Sr. Mechanical Engineer – ETO

Job Description

We are Packsize. A fast‑growth multinational technology company committed to eliminating excessive and unfriendly packaging experiences through the adoption of Right‑sized On‑Demand® packaging systems, software, and services. Founded in 2002 and headquartered in Salt Lake City, Packsize gives businesses worldwide the ability to improve their customer satisfaction and enhance brand value while gaining efficiencies and savings. We accomplish this through our shared passion for a world where every box, envelope, and package shipped is the right size.

This right‑sized shipment sends a ripple effect through the supply chain by reducing carbon emissions and fuel needs. In pursuit of packaging sustainability, we value the contribution of our combined experiences, backgrounds, and relationships to create a team where Everyone Fits. Become a part of Packsize and help us build Smart Packaging for a Healthy Planet®.

The Senior Mechanical Engineer – ETO (Engineer to Order) will serve as a technical leader within the ETO Team in Louisville, KY, focusing on customized mechanical design and system integration for packaging automation systems. This role requires a solid engineering foundation, creativity, and strong collaboration skills to deliver tailored solutions that align with Packsize’s high standards for performance, reliability, and sustainability.

You will lead the design and integration of Packsize technology with third‑party hardware and software systems such as conveyance, dimensioners, printers, scanners, and vision systems. You’ll also mentor junior engineers, support cross‑functional design reviews, and drive the continuous improvement of design processes and documentation standards.

• BS/MS in Mechanical Engineering or a related field
• 7+ years of relevant experience in machine design, automation, or related industries
• Proficiency in Creo for 3D CAD design and Windchill for PDM/PLM data management
• Experience with Solid Works and 3DExperience platforms is a plus
• Proven ability to lead mechanical design projects from concept through production
• Strong understanding of design for manufacturing, serviceability, and reliability
• Experience integrating mechanical, electrical, and software systems
• Knowledge of automation components, sensors, and motion systems
• Familiarity with lean product development and design thinking methodologies
• Excellent problem‑solving, mentoring, and communication skills
• Experience transferring designs from prototype to production environments
• Understanding of industrial safety standards and risk assessment processes

• Lead the mechanical design of custom ETO packaging systems and components
• Collaborate with cross‑functional teams to define customer requirements and technical specifications
• Develop and review detailed 3D models, drawings, and BOMs in Creo and Windchill
• Integrate external hardware/software into Packsize machines (conveyors, scanners, printers, etc.)
• Provide engineering guidance throughout the product lifecycle—from concept to installation
• Conduct design reviews, tolerance analyses, and risk assessments
• Support prototype builds and perform hands‑on testing, troubleshooting, and validation
• Ensure design compliance with Packsize standards, safety, and quality requirements
• Mentor junior engineers and contribute to team development and knowledge sharing
• Drive continuous improvement initiatives in design processes and documentation
• Collaborate closely with manufacturing, supply chain, and service teams to ensure successful product delivery

• Up to 25% travel as needed for customer site visits and installations
• Ability to perform hands‑on prototype fabrication and assembly as needed
• Comfortable working in a dynamic, collaborative, and innovative R&D environment

A dynamic, purpose‑driven environment where you can directly impact the success of Packsize and our customers by engineering innovative, sustainable packaging automation solutions. Join us in building Smart Packaging for a Healthy Planet®.

Packsize is an Equal Opportunity employer and is committed to diversity in its workforce. In compliance with applicable federal and state laws, Packsize policy of equal employment opportunity prohibits discrimination on the basis of race or ethnicity, religion, color, national origin, sex, age, sexual orientation, gender identity/expression, veteran’s status, status as a qualified person with a disability, or genetic information. Individuals from historically underrepresented groups, such as minorities, women, qualified persons with disabilities, and protected veterans are strongly encouraged to apply.

Reasonable accommodations in the application process will be provided to qualified individuals with disabilities.