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

WEX, Inc.; United States; Hybrid; USD 56,000 - 73,000; Full time

Benefits offered by this job

Mentorship

Professional development

Flexible options

Full-time opportunities

Job summary

WEX, Inc. is seeking a Software Engineer Intern across the United States to work with engineers and Product Managers on distributed systems, backend components, and AI-guided development in a cloud environment.

The 13-week paid internship runs from late May to mid-August, with mentorship, professional development, and a path to potential full-time roles. Remote, hybrid, and onsite options are available to fit your schedule.

Qualifications

• Pursuing a Bachelor's degree in CS/SE/ML or related field and will have completed at least sophomore year.
• Strong proficiency in C#, .NET and OOP fundamentals.
• Foundational understanding of identity and security protocols (OAuth, OIDC, JWT, Passkeys).
• Hands-on experience with AWS, Docker and GitHub CI/CD workflows.
• Interest or experience in AI skill-based agents; Python scripting is a plus.

Responsibilities

• Engineered backend solutions with clean, scalable code in C#/.NET.
• Implemented secure authentication and authorization in workflows.
• Managed containerized deployments and CI/CD on AWS using GitHub.
• Explored AI agents and productivity scripting with senior engineers.

Skills

C#/.NET

OOP fundamentals

AWS

Docker

GitHub CI/CD

Python scripting

AI agents

Education

Bachelor's degree in Computer Science or related

Tools

GitHub

Job description

WEX, Inc. is seeking a Software Engineer Intern across the United States to work with engineers and Product Managers on distributed systems, backend components, and AI-guided development in a cloud environment.

The 13-week paid internship runs from late May to mid-August, with mentorship, professional development, and a path to potential full-time roles. Remote, hybrid, and onsite options are available to fit your schedule.