Internships in O'Fallon, Missouri, United States

Bascom Hunter is seeking a Mechanical Engineering Intern to support the design, development, analysis, and testing of aerospace and defense systems. This position provides hands-on engineering experience across a range of mechanical technologies, including thermal management systems, precision rotating machinery, mechanical packaging, and ruggedized electronic systems.

Bascom Hunter is seeking a hands-on Engineering Technician / Assembly Intern to support the assembly, integration, and testing of aerospace and defense products and systems. This position is ideal for someone who enjoys working directly with hardware, using tools, assembling components, troubleshooting problems, and seeing a product come together from individual parts through final testing.

Bascom Hunter is seeking an Electrical Engineering Intern to support the development, integration, and testing of aerospace and defense systems. This position provides hands-on engineering experience across a variety of projects, including defense electronics, embedded and digital systems, test equipment, and thermal management and control systems.

Bascom Hunter is seeking an Industrial Engineering Intern to support process improvement, operational efficiency, and data-driven decision-making across our aerospace and defense operations. The intern will work with engineering, operations, manufacturing, and technical teams to evaluate existing processes, identify opportunities for improvement, and implement solutions that improve efficiency, quality, consistency, and scalability.

Engineering Co-Op at Rawlings Sporting Goods, split between Quality Assurance and Product Development at the O'Fallon, MO Tech Center. Works on testing sporting goods, creating specifications, and supporting new product development under the Director of Research and Engineering.

This position reports to a Support Team Lead or to the Support Manager at our Lake Saint Louis, Missouri, office location. This is an internship in our Member Support division and is an entry level role working with our Operations solutions.

This position reports to a Support Team Lead or to the Support Manager. This will be an internship in our Member Support division and is an entry level role working with our Energy solutions.

NISC is seeking a Data Engineer Intern to join its Data Engineering team, supporting enterprise software and data strategy for over 1,200 utilities and broadband providers across North America. You will assist in building and maintaining data pipelines, contribute to data architecture using AWS and Databricks, and collaborate with developers, analysts, and product teams on real-world projects.

NISC is a cooperative that has delivered enterprise-level and customer-facing software solutions for over 960 utilities and broadband providers across North America for more than 50 years. This Software Development Intern reports to a Software Engineering Team Lead and collaborates with other developers to design, develop, and maintain NISC’s Utility, Broadband, Financials, Operations software and/or mobile applications.

Veterinary Emergency Group (VEG) invites veterinary technology students to join an immersive, hands‑on externship in emergency medicine. Over a flexible period, participants shadow credentialed technicians, assisting with triage, diagnostics, anesthesia, and inpatient care in a fast‑paced ER environment.