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:   

We are seeking a highly motivated and talented undergraduate student in Computer Science, Data Science, Software Engineering, Information Systems, or a related field to join our Data, AI, and Risk Technology (DART), Semantic Foundation, and Enterprise Applications engineering teams as an intern. This is a unique opportunity to contribute to cutting-edge AI/ML applications, Big Data platforms, agentic systems, and Enterprise Semantic Models within the FinTech industry—supporting key business functions across Fraud and Credit Risk, Sales, Service, Marketing, HR, Finance, and Legal.

Working alongside experienced engineers and researchers, you will tackle real-world data engineering and platform challenges using modern technologies such as Python, SQL, Airflow, dbt, PySpark, Snowflake, cloud platforms, and LLMs. Our team is global and remote-first (spanning the U.S., India, and Brazil), operating with agile sprint disciplines and maintaining a strong culture of ownership, learning, and cross-functional collaboration.

How you’ll make an impact:

• Contribute to Impactful Projects: Work on challenging projects that leverage AI/ML to address critical business needs in areas like fraud prevention, credit risk assessment, and real-time, data-driven decision making.

• Build Trusted Data Foundations: Contribute to semantic models and reusable data assets that provide consistent business entities, definitions, and context for analytics, applications, and AI use cases across the enterprise.

• Data Transformation & Pipelines: Develop advanced platforms, SQL queries, and tools to process, ingest, clean, enrich, and optimize core company data—leveraging consuming services, microservices, and DAGs to unlock value for both customers and internal teams.

• Design and implement: AI-assisted workflows that directly optimize our production environment. Apply specification-driven development and declarative system design to build highly scalable, model-driven solution. 

• AI Prototyping & Workflow Automation: Help construct and test proof-of-concept AI solutions, automated scripts, basic agentic workflows, and LLM implementations to solve everyday business problems.

• Improve Data Quality & Observability: Help implement automated data-quality checks, monitoring, alerting, and observability capabilities that improve the accuracy, completeness, freshness, and reliability of critical data platforms and pipelines.

• Contribute to Platform Reliability & Tooling: Work on engineering improvements, reusable frameworks, automated testing, and CI/CD to make data platforms more resilient, scalable, easier to operate, and productive for developers.

• API & System Integration: Partner with software engineers to build integrations connecting data and AI tools with enterprise corporate systems.

• Apply Modern Engineering Practices: Participate in design reviews, code reviews, architectural flow diagram drafting, automated testing, CI/CD, documentation, and production-readiness activities.

• Tech Literacy & Stakeholder Enablement: Partner directly with non-technical business users and stakeholders to simplify complex technical concepts, guiding them on how to effectively integrate data and AI tools into their everyday workflows through hands-on support and documentation.

• Explore Emerging Technologies & Research: Research new AI tools, open-source libraries, GenAI, agentic applications, and AI-assisted development tools to present findings, demos, and lessons learned to the broader engineering team.

• Collaborate & Present: Work with big data technologies and partner with engineers, researchers, product managers, and stakeholders to brainstorm solutions and present project outcomes and business impact.

Experience you’ll bring: 

• Educational Foundation: 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.

• Strong Programming Skills & Fundamentals: Proficiency in coding using modern languages (preferably Python, Java, or Go) along with Object-Oriented Programming (OOP) concepts, scripting, automated testing, system monitoring, and basic familiarity with version control tools (e.g., Git/GitHub).

• AI/ML Expertise & Curiosity: Solid understanding of machine learning algorithms, techniques, best practices, or a strong academic interest in Artificial Intelligence, Machine Learning, and Natural Language Processing.

• Data-Driven Mindset & SQL: Hands-on experience working with data, including data analysis, manipulation, and visualization, alongside an academic background or practical experience with SQL and relational database concepts.

• Problem-Solving Skills: Strong analytical thinking, adaptability, and the ability to break down problems, investigate issues, evaluate possible solutions, and seek guidance when appropriate.

• Solution-Oriented: Desire to learn robust design solutions for small to medium-scale problems or system components.

• Collaboration & Communication: Excellent written and verbal communication skills to clearly articulate technical ideas, share progress, ask questions, and collaborate effectively with team members across different locations and time zones.

• Learning Agility & Self-Driven Learner: Curiosity, high motivation, and willingness to quickly learn new technologies, platforms, and business domains—including proactively utilizing GenAI-assisted development tools to streamline workflows, accelerate learning, and enhance productivity.

• Ownership Mindset: Willingness to take responsibility for an assigned problem and drive it toward a meaningful outcome rather than focusing only on individual tasks.

• Passion for Innovation: Enthusiasm for working with big data technologies, AI/ML, risk analysis, enterprise software engineering, system design, and cloud infrastructure.

Preferred Skills:

• Data Engineering Frameworks: Hands-on exposure to Airflow, dbt, PySpark, Spark, or similar data engineering tools.

• Cloud & Modern Data Platforms: Familiarity with Snowflake, AWS, Azure, GCP, or other cloud-based data platforms and data warehouses.

• Quality & Reliability Engineering: Exposure to Data Quality, Observability, monitoring, or platform reliability engineering.

• DevOps & Engineering Practices: Familiarity with DevOps practices and tools, CI/CD, automated testing, APIs, event-driven systems, or distributed systems.

• Emerging Tech & Open Source: Interest in GenAI, agentic applications, or semantic technologies, as well as contributions to open-source projects or publications in relevant conferences.

• Practical Project Experience: Hands-on experience gained through academic projects, hackathons, prior internships, research, personal/self-directed coding projects, or open-source contributions involving data engineering or software development.

• Customer-Centric: A strong desire to solve customer and business problems through thoughtful, effective, and user-friendly engineering solutions.

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.