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WageNest Payroll Processing System
A high-volume transactional system for payroll processing, employee management, and compliance workflows built with Spring Boot microservices and Kafka.
Architecture Highlights
System architecture
- Spring Boot microservices with REST APIs and Spring Security (OAuth 2.0, JWT, RBAC).
- Kafka-based event-driven architecture for payroll event processing and notifications.
- JPA/Hibernate with MySQL and PostgreSQL for optimized database performance.
- Docker containerization deployed on Kubernetes for horizontal scaling.
- CI/CD automation with Jenkins and Maven.
Problem → Solution
Clear outcomes with a compliance mindset.
Payroll systems require real-time processing, fault tolerance, and strict compliance while handling high transaction volumes.
Event-driven microservices architecture with Kafka for asynchronous processing, comprehensive security with OAuth 2.0/JWT, and containerized deployment on Kubernetes.
Features
- Payroll processing with payment initiation, status updates, and reconciliation.
- Employee management with role-based access control and compliance tracking.
- Fault-tolerant transaction handling with retry and compensation mechanisms.
- Global exception handling and centralized logging (ELK/Splunk).
- Redis caching for improved API response times.
Tech
JavaSpring BootSpring SecurityOAuth 2.0JWTApache KafkaJPAHibernateMySQLPostgreSQLRedisDockerKubernetesJenkinsMavenLog4jELK StackSplunk
Impact
- Improved database performance by 25-30% through query optimization.
- Reduced payment reconciliation issues by 40% with fault-tolerant design.
- Reduced deployment time by 40% with automated CI/CD pipelines.
- Maintained 80%+ code coverage with JUnit and Mockito testing.
- Reduced MTTR for production issues by 30% with centralized logging.
Screenshots
Screenshots will be added after product updates.