Internships › Software Engineering › Missouri

Software Engineering internships in Missouri

34 open student roles in software engineering in Missouri, from internships to co-ops and research. That includes 2 research positions. 8% list pay or say they are paid. The most common start terms are Summer 2027 and Fall 2026. Employers with the most openings: Cigna Group, National Information Solutions Cooperative (NISC), Boeing, Enterprise Holdings and Herzog Railroad Services.

• American Century Investments New
  Software Developer Intern
  Kansas City, MO +1 · Summer 2027
  Open posting
• Enterprise Holdings New
  Data Engineer Intern - IT
  St. Louis, MO · Summer 2027
  Open posting
• Ameren New
  Intern (Robotics, AI, OT, Software development)
  St. Louis, MO
  Open posting
• Kudu Dynamics
  Software Developer Intern
  St. Louis, MO +1
  Open posting
• The Federal Reserve System New
  2027 Summer Internship - Business Technology
  St. Louis, MO · Summer 2027
  Open posting
• Mastercard
  Platform Engineering Intern, Summer 2027 – St. Louis, MO, US
  O'Fallon, Missouri · Summer 2027
  Open posting
• Enterprise Holdings
  Software Engineer Intern - Summer 2027
  St. Louis, MO · Summer 2027
  Open posting
• Bass Pro Shops
  IT Developer Intern
  Springfield, MO · Summer 2027
  Open posting
• Herzog Railroad Services
  Software Project Coordinator Intern
  St. Joseph, Missouri
  Open posting
• National Information Solutions Cooperative (NISC)
  Intern - Software Development (AI Development)
  Lake Saint Louis, MO +2 · Summer 2027
  Open posting
• National Information Solutions Cooperative (NISC)
  Intern - Platform Development (Systems Engineering)
  Lake Saint Louis, MO +1
  Open posting
• EquipmentShare
  Software Engineer Intern
  Columbia, MO · Summer 2027
  Open posting
• Wells Fargo
  2027 Technology Summer Internship – Early Careers (Software Engineering)
  SAINT LOUIS, MO +11 · Summer 2027
  Open posting
• Exegy
  Software Engineer Intern
  St. Louis +2 · Summer
  Open posting
• National Information Solutions Cooperative (NISC)
  Intern - Technical (IT) Services
  Lake St. Louis, MO +2
  Open posting
• Boeing
  Boeing Engineering & Technology Innovation Graduate Researcher Program, Computational Fluid Dynamics (CFD) Intern
  USA - Hazelwood, MO · research
  Open posting
• Cigna Group
  The Cigna Group's Technology Development Program - Software Engineering Track Summer Internship
  St. Louis, MO +4 · Summer 2027 · $25.00 to $33.00 per hour
  Open posting
• Cigna Group
  The Cigna Group's Technology Development Program - Data & Analytics Engineering Track Summer Internship
  St. Louis, MO +3 · Summer 2027 · $25.00 to $33.00 per hour
  Open posting
• Cigna Group
  The Cigna Group's Technology Development Program - Cybersecurity Track Summer Internship
  St. Louis, MO +1 · Summer 2027
  Open posting
• Cboe
  Software Engineer Intern
  Kansas City, MO +2 · Summer
  Open posting
• Boeing
  Engineering & Technology Innovation, Graduate Researcher Program – Advanced Materials & Structures Intern
  USA - Berkeley, MO · research
  Open posting
• Herzog Railroad Services
  Software Intern
  St. Joseph, Missouri
  Open posting
• Panasonic Holdings
  Intern - New Technology Development
  Bridgeton, Missouri · Summer 2027
  Open posting
• National Information Solutions Cooperative
  Software Development Intern
  Lake St Louis, MO +2 · Summer 2027
  Open posting
• Mastercard
  Site Reliability Engineering Intern, Summer 2027 – St. Louis, MO, US
  O'Fallon, Missouri · Summer 2027
  Open posting
• National Information Solutions Cooperative (NISC)
  Intern - Software Development
  Lake Saint Louis, MO +2
  Open posting
• Olsson
  Electrical Engineering Internship - Federal Infrastructure
  North Kansas City, MO +1
  Open posting
• Olsson
  Civil Engineering Internship - Federal Infrastructure Site Design
  North Kansas City, MO
  Open posting
• HNTB
  Returning Digital Infrastructure Solutions Intern - Summer 2027 - Central Division (For Current/Former HNTB Interns Only)
  Kansas City, MO +16 · Summer 2027
  Open posting
• Commerce Bank
  IT Intern - Summer 2027
  Kansas City, MO +1 · Summer 2027
  Open posting
• Cigna Group
  Technology Apprentice - Multiple Teams
  St. Louis, MO · Fall 2026 · apprenticeship
  Open posting
• Air Force Civilian Career Training
  Computer Scientist
  Whiteman AFB, Missouri +59 · $56763 - $99314 Per Year
  Open posting
• The Boeing Company
  Boeing Summer 2027 Internship Program (Paid) – Information Digital Technology & Security (IDT&S)
  USA - Saint Charles, MO +16 · Summer 2027
  Open posting
• Boeing
  Boeing Summer 2027 Internship Program (Paid) – Information Digital Technology & Security (IDT&S)
  USA - Saint Charles, MO +16 · Summer 2027
  Open posting

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Updated September 26, 2026. Listings are collected from public job boards several times a day; always check the posting on the employer's site before applying.