Software Engineer
Jr. Software Development Engineer at WEX focuses on building scalable, data‑centric solutions using Python, Java, and SQL on AWS, with experience in Spark and machine learning to drive AI and risk analytics for a global commerce platform.
About the Team/Role
WEX is an innovative global commerce platform and payments technology company looking to forge the way in a rapidly changing environment, to simplify the business of doing business for customers, freeing them to spend more time, with less worry, on the things they love and care about. We are journeying to build a consistent world-class user experience across our products and services and leverage customer-focused innovations across all our strategic initiatives, including big data, AI, and Risk.
We are seeking a software engineer with a strong foundation in computer science and a demonstrated ability to solve technical problems through well-designed, efficient code. This role sits within our Risk Engineering team, where engineers build systems that detect, evaluate, and mitigate risk across credit, fraud, and financial operations.
This is an opportunity to work on high-impact systems where correctness, performance, and reliability matter. You will contribute to the design and development of services that operate at scale and directly influence business outcomes.
How you’ll make an impact
Design & Development
Design, implement, test, and deploy backend services within a microservices architecture
Apply data structures, algorithms, and core software engineering principles to solve real-world problems
Write clean, maintainable, and well-tested code with attention to correctness and performance
Contribute to system design decisions, including service boundaries, data models, and communication patterns
Build and maintain APIs and services that are reliable, scalable, and observable
Use modern development practices including CI/CD and infrastructure as code
Platform & Operations
Support production systems, including debugging, performance analysis, and incident response
Identify bottlenecks and improve system efficiency through measurement and iteration
Work with containerization and observability tools to ensure system reliability
Collaboration
Work closely with engineers and stakeholders to translate business problems into technical solutions
Participate in code reviews and technical discussions with a focus on quality and clarity
Take ownership of assigned work and follow through to completion
Engineering Excellence
Contribute to a high standard of engineering through testing, code quality, and design clarity
Follow and reinforce best practices in software development and system design
Strong Fundamentals: Demonstrates solid understanding of data structures, algorithms, and core software engineering principles
Problem Solving: Able to break down problems and implement effective, well-reasoned solutions
Code Quality: Produces readable, testable, and maintainable code
Posted June 20, 2026