Plastic Injection Molding Engineer

Are you ready to join a fast-paced, innovative team making a real impact in the renewable energy industry? Join Shoals Technologies Group (NASDAQ: SHLS), a leading provider of electrical balance of systems (EBOS) solutions for solar and energy storage. Headquartered just north of Nashville, Tennessee, we have been driving industry innovation since 1996 by delivering cutting-edge technologies that improve efficiency, safety, and reliability for solar systems worldwide. With over 60 GW of solar systems deployed globally, we’re setting the standard for the renewable energy industry.  

We are a collection of engineers, renewable advocates, curious minds, and collaborators. Our manufacturing facilities in Tennessee and Alabama, along with sales teams across Spain and Australia, enable us to power clean energy solutions across Europe, Latin America, Africa, and Asia-Pacific. We push boundaries and challenge each other to design, develop, and deliver solutions with the potential to change the world. We are the rebellious hero. 

Summary: 

The Plastic Injection Molding Engineer is responsible for developing, optimizing, and supporting all plastic injection molding processes to ensure efficient, safe, and high quality production. This role partners closely with production, tooling, and engineering teams to troubleshoot molding issues, validate new molds, improve cycle times, and support the launch of new products. The engineer also provides training, technical guidance, and process methodologies to the production team, as referenced in discussions about this role’s support and training responsibilities. 

Responsibilities: 

• Develop and optimize plastic injection molding processes to achieve safety, quality, and productivity targets.  

• Lead process setups, mold trials, and validations for new and existing tooling.  

• Troubleshoot molding defects and equipment issues, providing corrective actions and long term solutions.  

• Collaborate with tooling, maintenance, and production teams to ensure molds, machines, and auxiliary equipment meet operational requirements.  

• Establish and maintain process documentation, including work instructions, parameter sheets, and troubleshooting guides.  

• Analyze scrap, downtime, and efficiency metrics to identify continuous improvement opportunities.  

• Train and support technicians, operators, and floor leadership in molding best practices—aligning with the intent outlined in related internal communications about engineering support to production teams.  

• Assist in material selection, process qualification, and implementation of engineering changes.  

• Ensure compliance with safety policies, quality standards, and regulatory requirements. 

• Bachelor’s degree in engineering 

• Minimum 3 years of experience in plastic injection molding process engineering or a closely related role.  

• Solid understanding of thermoplastics, mold design, and injection molding machinery.  

• Strong analytical, problem solving, and troubleshooting skills.  

• Ability to interpret 2D/3D drawings, specifications, and engineering documentation.  

• Strong communication skills and the ability to work cross-functionally in a fast-paced manufacturing environment. 

• Experience with a mold flow analysis software 

• Ability to work on-site in Portland, Tennessee 

• Experience with scientific molding principles (RJG, Decoupled Molding) is a plus. 

Shoals Technologies Group, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.