Senior Software Development/Operations Engineer

WEX is seeking a Senior Development/Operations Engineer to join its Connected Fleet team. The role focuses on designing and developing scalable web and back-end applications, public REST APIs, automated testing and deployment frameworks, and reliable platforms that help fleets operate efficiently and make data-driven decisions.

Responsibilities:

• Design, develop, and maintain robust, scalable, and high-performance web applications
• Develop public REST APIs using Python and Node for inter-service and inter-system communication
• 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
• 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)

Requirements:

• 5-8 years of professional experience in software engineering
• Expertise in backend development, including strong proficiency in Python, Node.js, Go or C++ and building and optimizing RESTful APIs and SQL
• Strong foundation in data structures and algorithms, object-oriented design, and problem-solving
• Experience with cloud-native environments, including Docker, Kubernetes, or AWS/GCP/Azure
• Experience with event-driven architecture and tools like Kafka
• Familiarity with relational or NoSQL databases; e.g. SQL, MongoDB
• Expertise in designing and developing internet-scale services with scalability, availability, security, and reliability design tenets
• Solid understanding of web security fundamentals including authentication, authorization, and data protection
• Familiarity with Git, automated testing frameworks, and CI/CD workflows
• Clear written and verbal communication skills, and a collaborative and empathetic mindset
• Ability to work within existing codebases with legacy systems constraints
• Experience or familiarity with telematics data, time-series data, and/or geospatial data
• Experience with micro-frontends or module federation
• Experience developing with the assistance of AI-driven tools
• Experience working with geographically distributed teams