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- Engineered high-performance Java 11 backend using Spring Boot 2.7, implementing CompletableFuture, Java Streams, and Optional for concurrent transaction processing in core banking systems, improving transaction throughput by 25%.- Designed microservices architecture with Spring Cloud Netflix Eureka, Hystrix, Ribbon, and Spring Cloud Config for centralized configuration management of distributed banking services.- Implemented reactive programming using Spring WebFlux and Project… Show more - Engineered high-performance Java 11 backend using Spring Boot 2.7, implementing CompletableFuture, Java Streams, and Optional for concurrent transaction processing in core banking systems, improving transaction throughput by 25%.- Designed microservices architecture with Spring Cloud Netflix Eureka, Hystrix, Ribbon, and Spring Cloud Config for centralized configuration management of distributed banking services.- Implemented reactive programming using Spring WebFlux and Project Reactor for non-blocking I/O in high-throughput financial transaction scenarios, reducing response times by 40% under peak loads.- Developed security layer using Spring Security, OAuth2, JWT, and JAAS for multi-factor authentication, integrating LDAP and Active Directory for employee access control.- Utilized Spring Integration for external payment gateway connections, implementing JMS with Apache ActiveMQ Artemis for reliable inter-service messaging.- Optimized Oracle SQL, DB2, and Vertica databases using advanced indexing, partitioning, and materialized views to enhance the performance of analytical queries on historical transaction data, reducing query execution time by 30%.- Integrated Apache Kafka, Spring Kafka, and Kafka Streams for real-time event processing and complex event streaming in fraud detection and transaction monitoring.- Developed responsive Single Page Applications using Angular 10, Angular CLI, and Ivy compiler for optimized customer-facing banking portals, decreasing page load times by 20%.- Implemented data manipulation and analysis using Python libraries such as NumPy, Pandas, and Matplotlib.- Configured ELK stack with Elasticsearch, Logstash, Kibana, Filebeat, and Metricbeat for comprehensive logging and monitoring, integrating Prometheus and Grafana for metrics visualization, improving system observability and reducing mean time to resolution by 35%. Show less

- Developed insurance core systems using Java 8, Spring Boot, and J2EE components, adhering to Agile principles and Scrum practices, reducing time-to-market for new features by 30%.- Implemented microservices architecture using Spring Cloud Netflix, utilizing Eureka for service discovery, Zuul for API gateway, and Hystrix for circuit breaking, improving system resilience and reducing downtime by 40%.- Created RESTful web services with Spring MVC for policy quoting and claims processing,… Show more - Developed insurance core systems using Java 8, Spring Boot, and J2EE components, adhering to Agile principles and Scrum practices, reducing time-to-market for new features by 30%.- Implemented microservices architecture using Spring Cloud Netflix, utilizing Eureka for service discovery, Zuul for API gateway, and Hystrix for circuit breaking, improving system resilience and reducing downtime by 40%.- Created RESTful web services with Spring MVC for policy quoting and claims processing, while maintaining legacy SOAP services for partner integrations.- Implemented GraphQL API with Spring for GraphQL, providing flexible querying capabilities for insurance policy data, reducing over-fetching of data by 25%.- Optimized database operations using Spring Data JPA with Oracle 12c for structured policy data and MongoDB for unstructured claim documents, improving query performance by 20%.- Designed batch processing jobs with Spring Batch for nightly policy renewals and premium calculations, utilizing MongoDB for result analysis and reporting, reducing processing time by 35%.- Developed responsive frontend using React and Redux for state management, creating an intuitive user interface for policyholders and agents, increasing user engagement by 15%.- Implemented message-driven architecture using Kafka for real-time event processing and RabbitMQ with Spring AMQP for asynchronous task queuing.- Containerized applications using Docker, orchestrating deployments with AWS ECS for scalable and manageable infrastructure, improving resource utilization by 25%.- Designed CI/CD pipeline using Jenkins and Maven for Java services, and npm scripts for React frontend, integrating with SonarQube for continuous code quality analysis and Postman for automated API testing, reducing deployment errors by 50%. Show less

- Developed RESTful microservices with Spring Boot, enhancing performance and scalability, focusing on backend system integration and Angular frontend consumption.- Optimized interactions with PostgreSQL and other relational databases using Spring Data JPA for efficient data persistence management.- Implemented OAuth2 and JWT with Spring Security to secure application endpoints, ensuring robust authentication and authorization.- Developed responsive frontend using Angular and… Show more - Developed RESTful microservices with Spring Boot, enhancing performance and scalability, focusing on backend system integration and Angular frontend consumption.- Optimized interactions with PostgreSQL and other relational databases using Spring Data JPA for efficient data persistence management.- Implemented OAuth2 and JWT with Spring Security to secure application endpoints, ensuring robust authentication and authorization.- Developed responsive frontend using Angular and TypeScript, creating an intuitive interface for e-commerce customers and administrators.- Integrated RabbitMQ for asynchronous messaging within the microservices architecture, improving system resilience and reducing latency.- Leveraged AWS services including EC2, S3, RDS, VPC, and IAM to build a scalable and secure cloud infrastructure for the e-commerce platform.- Containerized applications using Docker, orchestrating deployments with Docker Swarm and Kubernetes for efficient management and scaling.- Implemented Kafka for real-time data streaming, ensuring reliable communication and event processing between microservices.- Configured ELK Stack (Elasticsearch, Logstash, Kibana) for centralized logging and monitoring, providing real-time insights into application performance.- Designed CI/CD pipeline using Jenkins and Maven, integrating SonarQube for continuous code quality analysis and automated testing. Show less

- Led Agile development with daily Scrum meetings, designing and implementing high-performance web applications using Core Java, J2EE, Threads, and Synchronization.- Utilized Spring Framework extensively, including Spring MVC, Spring AOP, Spring Data, Spring ORM, and Transaction Management for modular and robust application development.- Designed and developed RESTful web services using Spring and Spring Data, creating scalable APIs and optimizing database interactions with JDBC, JPA… Show more - Led Agile development with daily Scrum meetings, designing and implementing high-performance web applications using Core Java, J2EE, Threads, and Synchronization.- Utilized Spring Framework extensively, including Spring MVC, Spring AOP, Spring Data, Spring ORM, and Transaction Management for modular and robust application development.- Designed and developed RESTful web services using Spring and Spring Data, creating scalable APIs and optimizing database interactions with JDBC, JPA, and Hibernate.- Worked extensively with MySQL, implementing efficient data storage, retrieval, and management strategies, utilizing advanced features like indexing, stored procedures, and partitioning.- Integrated ActiveMQ with Java Message Service (JMS) for reliable asynchronous communication between distributed components.- Implemented cloud-based solutions using Microsoft Azure, leveraging services like Azure Blob Storage and Azure Cloud Services.- Configured and maintained Jenkins and Azure DevOps for CI/CD, ensuring seamless software deployment across cloud platforms.- Conducted thorough unit testing of Java classes using JUnit and Mockito, and created a BDD test automation framework with Cucumber.- Developed and optimized Java-based server-side rendering solutions to support dynamic user interfaces, working alongside frontend developers using React, JSX, and JavaScript.- Employed Git and GitHub for version control, managing code branches and facilitating smooth team collaboration. Show less