Jr. Software Development Engineer - wex

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

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