Dharani Donikena
Professional Summary
Java Full Stack Developer with 3+ years of experience delivering enterprise web applications and microservices for financial services and IT services clients. Strong backend expertise in Spring Boot, Spring MVC and Spring Data JPA with hands-on experience building secure REST APIs using OAuth 2.0 and JWT. Frontend experience includes Angular and React paired with TypeScript and JavaScript to deliver responsive UIs. Proven cloud and DevOps experience on Azure (AKS, Azure SQL, Application Insights) and AWS (EC2, RDS, CloudWatch) including Docker, GitHub Actions and Jenkins for CI/CD. Worked on streaming and batch processing with Apache Kafka and Spring Batch, and applied unit and integration testing with JUnit and Mockito. Comfortable using GitHub Copilot and Azure OpenAI to accelerate development and testing workflows.
Technical Skills
Work Experience
- Architected Spring Boot microservices to support account and portfolio workflows.
- Implemented PostgreSQL schemas and optimized queries with Hibernate to support 5,000+ daily service requests.
- Built Angular interfaces with TypeScript for portfolio management, improving task completion efficiency.
- Designed REST APIs and enforced role-based access using Spring Security and OAuth 2.0.
- Optimized Azure SQL queries via JPA, reducing average application response time by 15%.
- Containerized services with Docker and deployed to AKS to standardize runtime across environments.
- Automated CI/CD pipelines using GitHub Actions and Jenkins to improve deployment consistency.
- Instrumented applications with Application Insights and Azure Monitor, diagnosing and resolving 1,000+ operational issues to ensure production stability.
- Developed Java 11/17 Spring MVC services to support 20+ critical business processes.
- Built React components using JavaScript to streamline order tracking and service queue workflows.
- Designed REST APIs with Spring MVC to integrate downstream systems for customer and order data exchange.
- Optimized data access using Spring JDBC and MyBatis, improving transaction response times by 15%.
- Engineered Apache Kafka producers and consumers for asynchronous order-event processing to increase throughput and reliability.
- Automated recurring data workflows with Spring Batch to reduce manual data processing overhead.
- Managed deployments on AWS EC2 and RDS and used AWS CloudWatch for diagnostics and incident analysis.
Projects
- Developed backend services in Kotlin with Ktor for patient registration and scheduling.
- Integrated OpenAI API to implement an AI assistant for appointment queries and implemented JWT authentication for secure access.
- Implemented MongoDB and Redis for session and availability caching to improve response latency.
- Built responsive React front-end and Flask back-end with REST APIs for user interactions and dashboards.
- Implemented JWT-based authentication and integrated ML model outputs into the backend to deliver data-driven predictions to the UI.
- Developed a Spring Boot-based real-time fraud detection pipeline with Redis for caching and state.
- Containerized the processing components with Docker and used AWS Lambda for event-driven scoring to support scalable processing.
Education
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