[Hiring] Backend Software Engineer Intern @WEX

Role Description

The WEX Summer Internship Program: Learn, Lead, and Make an Impact

• 13-week paid internship program, running from late May to mid-August.
• Gain real-world experience and develop your skills.
• Work on impactful projects and contribute to WEX’s mission.
• Receive mentorship, professional development, and weekly learning experiences.
• High-performing interns may lead their own initiatives.
• Remote, hybrid, and onsite options for flexibility.
• Goal to bring top interns back full-time or offer extended roles during the school year.

About the Team/Role:

• Work alongside engineers and Product Managers to build resilient backend systems and AI-integrated workflows.
• Gain hands-on experience designing scalable APIs, working in cloud environments, and leveraging modern AI toolchains.

How you'll make an impact:

• Develop Backend Services:
  • Design and implement RESTful APIs, microservices, and backend processing pipelines using C# or Java.
• Database & Cloud Integration:
  • Write efficient SQL queries for SQL Server and support deployments on Microsoft Azure.
• AI-Integrated SDLC:
  • Leverage modern AI tools (Cursor, Copilot, MCPs, AI APIs) for spec-driven development, rapid prototyping, and automated task execution.
• Learn & Collaborate:
  • 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.
• Completed at least your Sophomore year of school at the start of the internship.
• Proficiency in C# (preferred) or Java.
• Strong standard database skills (SQL / SQL Server).
• Solid understanding of API design principles and backend processing architectures.
• Experience with Microsoft Azure.
• Practical experience using AI coding assistants or APIs (e.g., Cursor, Copilot, MCPs).
• Knowledge of event streaming technologies (e.g., Kafka) or messaging architectures is a plus.

Requirements

• Educational foundation as specified in the qualifications.
• Proficiency in programming languages and database management.
• Understanding of cloud services and AI tools.

Benefits

• Health, dental, and vision insurances.
• Retirement savings plan.
• Paid time off.
• Health savings account.
• Flexible spending accounts.
• Life insurance.
• Disability insurance.
• Tuition reimbursement.
• More comprehensive benefits designed to support personal and professional well-being.

Company Description

WEX is a global commerce platform that has been simplifying the way businesses operate for over 40 years. Our purpose is simple: to reduce administrative burdens, streamline payments, and manage mobility. With a team of over 7,200 professionals across 16 countries, we support more than 20 million SaaS accounts, 8 million Health Savings Accounts, and 19+ million vehicles worldwide.