* Automated the creation of microservices by saving 60% of time writing code using custom application-script.* Contributed to the migration process from CQRS microservice architecture to Commercetools which reduced annual costs by 70%* Implemented communication mechanisms between microservices using Kafka, enabling seamless data exchange and synchronization.* Redesigned and implemented a database system to efficiently store and manage data which reduced database load by 2 times.* Integrates payment processing functionality using Stripe API to facilitate seamless and secure transactions within the application* Provided mentorship and support to new team members by writing and updating documentations, facilitating their onboarding process and helping them understand project workflows.Skills: Java 17, Spring Boot, JPA/Hibernate, Kafka, PostreSQL, MongoDB, JUnit5, Mockito,Docker, GraphQL, Commercetools, Elasticsearch, Sonarqube, GitLab, Kubernetes, AWS

* Migrated databases from Postgres to Mongo to optimize data storage and improve performance.* Configured JWT Security with KeyCloak to authenticate/authorize users accessing the API Gateway.* Removed all the logic from Controllers to the Service layer to reduce code duplication and improve separation of concerns.* Optimized all the code and main logic in most of the services in backend and frontend which led to increased efficiency and better performance.* Configured Grafana to collect metrics from all the services and provide insights into system performance and health.* Created robust exception handling and CircuitBreaker for all the services to enhance fault tolerance and reliability.Skills: Java 17, Spring Boot, JPA/Hibernate, JWT, PostreSQL, MongoDB, JUnit5, Mockito,Docker, Grafana, Prometheus, Zipkin, Keycloak, GitHub, Google Cloud

* Implemented advanced KYC search within the application for quick retrieval of user data which decreased the application processing time by 60% as assessed by the HR department. * Secured user data by splitting the existing PostgreSQL database into two databases, reducing data breach risks.* Implemented Redis for storing user sessions which increased system performance and scalability. * Excluded notification service from monolith system that improved system modularity and reduced coupling. * Developed sorting mechanisms based on various parameters that helped administrators efficiently manage and analyze data. * Refactored most of the code, resulting in improved maintainability, readability, overall code quality and easier debugging processes.Skills: Java 8/11, Spring Boot, JavaScript, CSS, HTML, Thymeleaf, Flyway, JUnit4, Mockito,Sonarqube, MySQL, Redis, Kafka