Surya Mula

Sr Java Developer @Walmart

Sunnyvale, CA, US

Project OverviewContributed to the Fraud Gateway (FrGw) platform, a business-critical system designed to detect, investigate, and prevent fraud related to users and vendors. The platform processes real-time data streams to identify suspicious behavior, reduce financial risk, and improve fraud response times. Worked closely with cross-functional teams to enhance detection accuracy, minimize false positives, and improve system scalability and responsiveness.Key ContributionsDeveloped and maintained RESTful microservices using Java, Spring Boot, and Hibernate to support real-time fraud detection workflows.Implemented event-driven messaging with Apache Kafka, enabling reliable and high-throughput data processing.Built CRUD microservices integrated with Oracle / PL-SQL databases to ensure secure and efficient data persistence.Followed Agile (Scrum) practices and Test-Driven Development (TDD) to deliver high-quality features with predictable release cycles.Designed and exposed JAX-RS REST APIs to support internal fraud investigation tools and external integrations.Automated operational tasks using Linux shell scripts for file handling and data movement.Implemented a microservices-based cloud architecture on AWS, improving scalability and fault tolerance.Integrated AWS CloudWatch and the ELK Stack for centralized logging, real-time monitoring, and faster issue resolution.Secured APIs using Spring Security with JWT authentication, meeting enterprise security and compliance standards.Developed Angular UI components to display real-time fraud analytics using dynamic tables and charts.Built reusable front-end components for fraud case management, tightly integrated with backend services.

Florida State University

Master's degree