Backend Software Engineer Intern - C#/Java & AI Workflows (Undergraduate)

Public source summary from intern-list.com / Jobright.

WEX is a global commerce platform that helps businesses reduce administrative burdens, streamline payments, and manage mobility. The Backend Software Engineer Intern will design and implement backend services, RESTful APIs, microservices, and AI-integrated workflows while working with SQL Server, Microsoft Azure, and modern AI tools.

The intern will collaborate with senior engineers on scalable, message-driven architectures and backend processing pipelines.

Responsibilities

Design and implement RESTful APIs, microservices, and backend processing pipelines using C# or Java Write efficient SQL queries for SQL Server and support deployments on Microsoft Azure Leverage modern AI tools (Cursor, Copilot, MCPs, AI APIs) for spec-driven development, rapid prototyping, and automated task execution Partner with senior engineers to apply best practices in microservices and message-driven architectures (e.g., Kafka)

Qualifications: 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 Proficiency in C# Or Java, along with strong standard database skills (SQL / SQL Server) Solid understanding of API design principles, backend processing architectures, and Microsoft Azure Practical experience using AI coding assistants or APIs (e.g., Cursor, Copilot, MCPs) to accelerate development (preferred) Knowledge of event streaming technologies (e.g., Kafka) or messaging architectures is a plus

Benefits: 13-week paid internship program, running from late May to mid-August Mentorship Professional development Weekly learning experiences to help you build confidence and leadership skills Opportunities to lead initiatives for high-performing interns Remote, hybrid, and onsite options for flexibility Potential for top interns to return full-time or receive extended roles during the school year Health insurance Dental insurance Vision insurance Retirement savings plan Paid time off Health savings account Flexible spending accounts Life insurance Disability insurance Tuition reimbursement Most sales positions are eligible for commission under the terms of an applicable plan Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan