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

WEX Inc.; Maine; Hybrid; USD 41,000 - 62,000; Full time

Benefits offered by this job

Health, dental, vision insurance

Retirement plan

Paid time off

Health savings account

Flexible spending accounts

Life insurance

Disability insurance

Tuition reimbursement

Job summary

WEX Inc. in the United States is offering a 13‑week paid Software Engineer Intern program running from late May to mid‑August. You’ll work on real projects, receive mentorship, and gain hands‑on experience building scalable software with AI‑driven solutions.

The internship offers remote, hybrid, and onsite options, with goals to return interns as full‑time hires or extended roles during the school year. You will collaborate with Product Managers and engineers to solve business challenges and

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, LLM integration, or AI agent frameworks (LangChain, AutoGen) is a plus.

Responsibilities

• Build AI solutions: design, prototype, and deploy AI agents and LLM integrations to automate workflows.
• Ship production code: full software lifecycle from API design to CI/CD deployment.
• Collaborate with cross-functional teams to translate customer needs into resilient microservices.
• Apply TDD/BDD practices and continuously explore modern technologies and frameworks.

Skills

C#/Go/Java

AI/ML concepts

LangChain

AutoGen

Education

Master’s degree in Computer Science/Software Engineering

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.

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.

• 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

Pay Range: $30.00 - $45.00

WEX is a global commerce platform that helps businesses solve for operational complexities like employee benefits, managing and mobilizing fleets, and streamlining payments. With over 6,500 employees, we work with large and small companies in more than 200 countries and territories, and can tailor our services to meet the unique needs of their businesses. We hire people who share our passion for continuous innovation and client service that is unparalleled in the industry. Offering comprehensive and market competitive benefits, our offerings are designed to support your personal and professional well‑being. If you’re looking for a growing career - come be part of WEX today. To learn more about our employee benefits, please click here.

WEX is an equal opportunity employer committed to diversity and inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to sex, race, color, age, national origin, religion, sexual orientation, gender identity, protected veteran status, disability or other protected status. WEX promotes a drug‑free workplace. Qualified individuals with a disability have the right to request a reasonable accommodation. If you require a reasonable accommodation as a result of your disability at any point in the job application process, please submit your request through our Reasonable Accommodation Request Form. This form is for accommodation requests only and cannot be used to inquire about the status of applications.