Backend Software Engineer Intern - C#, Cloud Security & AI (Undergraduate)

WEX is a global commerce platform that provides employee benefits, business payments, and fleet and mobility solutions. The Backend Software Engineer Intern will develop scalable C#/.NET backend solutions, implement cloud authentication and security protocols, manage AWS-based Docker and GitHub CI/CD workflows, and collaborate on AI agent integration.

Responsibilities:

• Write clean, scalable code using C# / .NET based on strong Object-Oriented Programming (OOP) principles
• Integrate secure authentication and authorization protocols (OAuth, OIDC, JWT, Passkeys) into application workflows
• Containerize applications using Docker and manage automated CI/CD pipelines on AWS using GitHub
• Collaborate with senior engineers to explore, build, and integrate skill-based AI agents and productivity scripting

Requirements:

• Currently pursuing a Bachelor's degree in Computer Science, Machine Learning, Software Engineering, or related field and will have completed at least your Sophomore year of school at the start of the internship
• Strong proficiency in C#, .NET, and Object-Oriented design fundamentals
• Foundational understanding of identity and security protocols (OAuth, OIDC, JWT, or Passkeys)
• Hands-on exposure to AWS, Docker containerization, and GitHub CI/CD workflows
• Experience or interest in building AI skill-based agents, along with basic Python scripting skills, is a plus