About the role#
As a Backend Software Engineer Intern, you will join the WEX technology team to build software solutions that address complex business challenges. You will work alongside senior engineers to design and ship features, contributing directly to our platforms for employee benefits, business payments, and fleet mobility. This is a 13-week paid internship program.
What you'll do#
- Build scalable backend services using Java and Spring Boot.
- Develop full-stack and mobile system components.
- Design PostgreSQL schemas and optimize database queries.
- Deploy resilient microservices on AWS cloud infrastructure.
- Construct AI agents and automate workflows to improve project delivery.
- Write and maintain thoroughly tested code.
- Partner with senior engineers to apply software design best practices.
What you'll need#
- Current enrollment in a Master's degree program for Computer Science, Software Engineering, or a related field.
- Strong proficiency in Data Structures and Algorithms.
- Hands-on experience with Java, Spring Boot, and PostgreSQL.
- Familiarity with AWS cloud infrastructure and mobile application development concepts.
- Practical experience building AI agents and using modern AI tools.
- Strong analytical problem-solving skills and a collaborative mindset.
Location & details#
- Term: Summer 2027
- Work Modality: Remote
- Employment Type: Full-time
About WEX
WEX is a public company founded in 1983 that provides a global commerce platform. It focuses on payment solutions for fleet, travel, and healthcare industries. The company employs over 5,000 people and maintains its headquarters in Portland, Maine. Its services include corporate payment technology and benefits administration.
How to get in at WEX
Applying early is your best strategy for a WEX internship because recruiters review applications as they arrive. Intern Insider sends you an instant alert the moment a role matching your target is published, so you can apply before the pile grows and your resume gets lost in the shuffle. It is a simple way to stay ahead of the competition during a busy recruiting season. You can also improve your response rates by reaching out to the recruiters behind the company roles directly. Intern Insider surfaces the specific people managing these openings, allowing you to ask thoughtful questions or request a referral. Connecting with a human being often makes the difference between a generic application and a serious conversation.



