Tech Stack : Java (Spring boot, WebFlux - reactive streams), Elastic Search, RabbitMQ, Docker, DevtronDeveloped a high-performance Spring Boot server using WebFlux capable of handling up to a million data points and supporting complex interdependent formulas.Enabled users to rollback changes to datasets, implementing SCD for tracking historical changes and providing flexibility and error recovery in data management.

Tech Stack : Java (Spring boot, Eureka, Zuul), Python (Flask), MySQL, RabbitMQ, AWS (EC2, ECS, RDS, S3, SES), Docker, Jenkins, Ansible, SeleniumDeveloped ETL pipelines to extract and aggregate data from CRM tools (Salesforce, MS Dynamics, HubSpot) and email providers (Gmail, Outlook).Built a sentiment analysis pipeline for email data, leveraging a pre-trained model and GPT.Implemented pagination for APIs with multiple filters and sorting options, enhancing data retrieval efficiency and improving user experience in large datasets.Improved API performance by around 50% through optimizing SQL queries, implementing database indexing, and utilizing threading for parallel task execution.Migrated background cron jobs to a dedicated service, reducing memory consumption on the main application by around 25% and improving overall system efficiency.Collaborated with clients to understand CRM setups and tailored the integration accordingly.

Tech Stack : Java (Spring boot), MySQL, ORM - Hibernate, DockerAs a Java Developer, responsible for writing, debugging and testing back-end code. Worked on REST API using Spring Boot and microservice architecture.Maintained unit tests using JUnit and Mockito to ensure code reliability.