Senior Web Engineer (Full Stack)

WEX Inc is seeking a Senior Web Engineer to join their NAM Experiences team. The role involves designing and developing high-performance web applications that improve customer experiences for large fleets and transportation companies.

Responsibilities:

• Design, develop, and maintain robust, scalable, and high-performance web applications
• Build and evolve shared component libraries and design-system assets used across multiple Mobility applications
• Develop systems designs, and drive alignment across teams
• Implement comprehensive automated testing strategies, including unit, integration, end-to-end, load, and performance testing
• Identify bottlenecks and tech debt; drive incremental scalability, and stability improvements
• Develop and enhance automation frameworks for testing, monitoring, auto-scaling, continuous integration and deployment to reduce time to market
• Partner with Product, Design, and UX to deliver high-quality user experiences
• Conduct code reviews (comment, approve, seek revisions, merge), and champion engineering best practices, and continuously raise the quality bar
• Troubleshoot complex production issues, devise fixes, author root cause analysis documents, and ensure lasting performance and reliability
• Maintain robust documentation (design docs, run books, change management docs, and readiness plans)
• Provide live-site production support, ensuring rapid incident resolution, and driving continuous improvement
• Drive cross-team projects as a single-threaded-owner (STO) or tech lead, and actively unblock other engineers to make progress
• Gain hands-on experience with automation and AI-driven engineering solutions

Requirements:

• Bachelor's degree in Computer Science or Software Engineering
• 5-8 years of professional experience in software engineering
• Strong foundation in data structures and algorithms, object-oriented design, and problem-solving
• Proficiency with modern front-end frameworks such as Angular (preferred) or React
• Strong skills in TypeScript/JavaScript, HTML5, or CSS3/SASS
• Experience integrating front-end applications with RESTful or GraphQL APIs
• Solid understanding of web security fundamentals including authentication, authorization, and data protection
• Familiarity with Git, automated testing frameworks, and CI/CD workflows
• Excellent collaboration and communication skills with a focus on user experience and maintainability
• Clear written and verbal communication skills, and a collaborative and empathetic mindset
• Experience with micro-frontends or module federation
• Exposure to backend technologies such as Java(preferred) or Node.js
• Experience with cloud-native environments, including Docker, Kubernetes, or AWS/GCP/Azure
• Familiarity with relational or NoSQL databases; e.g. SQL, MongoDB
• Experience building and scaling design systems, with strong knowledge of accessibility (WCAG), and performance optimization
• Master's degree in computer science or software engineering