Software Development Engineer 3

Overview

Design, build and maintain scalable APIs, backend services and data pipelines for WEX's fleet and payments platforms, including modernizing legacy financial systems into microservice-based, cloud-ready architectures.

What you'll do

• Design, develop, test and maintain robust full-stack solutions with an emphasis on APIs, microservices, Kafka and backend systems.
• Work with streaming data, including real-time event processing using Kafka or similar technologies.
• Build automation for Change Data Capture (CDC) and data synchronization pipelines using JSON-based services.
• Participate in agile ceremonies and own the full software development lifecycle (SDLC).
• Collaborate closely with product managers, designers and other engineers to deliver high-quality software.
• Provide mentorship and technical guidance to junior developers.
• Troubleshoot and resolve critical production issues as needed.

What you'll need

• BS in computer science or related fields.
• 6 years+ hands-on experience developing applications/microservices with Java/Python/Kafka.
• 3 years+ hands-on experience with REST API development.
• Strong written and verbal communication skills.
• Proficiency in backend languages such as Python, Java, or Node.js.
• Experience designing and building RESTful APIs.
• Hands-on experience with Apache Kafka or similar event streaming platforms, SMS and Dead letter Queues.
• Strong knowledge of Change Data Capture (CDC) strategies and implementation.
• Familiarity with JSON, XML, and other data interchange formats.
• Solid understanding of relational and/or NoSQL databases (e.g., PostgreSQL, Oracle, Snowflake).
• Experience working in Unix/Linux environments and scripting (e.g., shell, Python).
• Working knowledge of CI/CD pipelines and source control tools (e.g., Git).

Nice to have

• Exposure to financial platforms like PeopleSoft, EBS, SAP, including APIs and integration workflows.
• Experience with cloud platforms (AWS preferred).
• Familiarity with PeopleSoft Tools and Web Services.
• Experience with containerization (Docker, Kubernetes) and cloud-native services.
• Experience with large-scale transaction or payments systems.
• Familiarity with modern front-end frameworks (React, Angular, Vue.js).
• Knowledge of tools like JIRA, Confluence, and design documentation best practices.

Details

• Location: Bangalore Office, India.