Software Engineer Intern – AI & Cloud (Graduate/Master’s)

WEX; United States; Hybrid; USD 41,000 - 62,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Tuition reimbursement

Retirement savings plan

Job summary

WEX Technology is offering a 13-week paid Software Engineer Intern program across the U.S. You will work with Product Managers and engineers to build scalable software, including AI-driven solutions and LLM integrations.

You will gain hands-on experience, mentoring, and weekly learning experiences, with options for remote, hybrid, or onsite work. The role emphasizes real impact, teamwork, and the potential to continue with WEX after the internship.

Qualifications

• Currently pursuing a Master’s degree in Computer Science, Software Engineering, or a related field.
• Proficiency in at least one server-side language (C#, Go, Java).
• Familiarity with AI/ML concepts and LLM integration is a plus.
• Strong problem-solving and collaboration skills.

Responsibilities

• Build AI solutions: design, prototype, and deploy AI agents and LLM integrations.
• Ship production code across the full software lifecycle (API design, testing, CI/CD).
• Collaborate with cross-functional teams to translate customer needs into resilient services.
• Learn and grow through TDD/BDD and mentorship.

Skills

C#

Go

Java

AI/ML concepts

LLM integration

Education

Master's student in CS/SE

Tools

LangChain

AutoGen

Job 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.

Our specialties are employee benefits, business payments, and fleet/mobility solutions. We support more than 20 million SaaS accounts, 8 million Health Savings Accounts, and 19+ million vehicles worldwide. We’re a growing company with a history of innovation and a focus on our customers, making this a great place to grow your career.

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

Our 13-week paid internship program, running from late May to mid-August, is a chance for you to gain real-world experience and develop your skills. Recruiting begins in September and continues through November at our various locations across the U.S.

You won’t just be a bystander; you’ll work on impactful projects and contribute to WEX’s mission. We provide mentorship, professional development, and weekly learning experiences to help you build confidence and leadership skills. High-performing interns may even get the chance to lead their own initiatives.

We offer remote, hybrid, and onsite options for flexibility, and our goal is to bring top interns back full-time or offer them extended roles during the school year.

Imagine starting your career with a company that’s building what’s next. Your future starts here.

About the Team/Role:

As a Software Engineer Intern on the WEX Technology team, you will collaborate with Product Managers and engineers to solve complex business challenges. You will gain hands‑on experience building scalable software, leveraging modern practices, and developing AI‑driven solutions.

How you’ll make an impact:

• Build AI Solutions: Design, prototype, and deploy AI agents and LLM integrations to automate workflows and enhance product capabilities.
• Ship Production Code: Work across the full software lifecycle—from API design and implementation to automated testing and CI/CD deployment.
• Collaborate & Innovate: Partner with cross‑functional teams to translate customer needs into resilient, high‑availability microservices.
• Learn & Grow: Apply TDD/BDD practices, receive peer mentorship, and continuously explore modern technologies and frameworks.

Experience you’ll bring:

• Currently pursuing a Master’s degree in Computer Science, Software Engineering, or a related field.
• Proficiency in at least one server‑side language (languages we use and teach: C#, Go, Java).
• Familiarity with AI/ML concepts, LLM integration, or AI agent frameworks (e.g., LangChain, AutoGen) through coursework or personal projects is a plus.
• Strong problem‑solving skills, adaptability, and a collaborative mindset.

The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX’s total compensation package. 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. WEX’s comprehensive and market competitive benefits are designed to support your personal and professional well‑being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the “About Us” section.

Pay Range: $30.00 - $45.00