• Architected and deployed a microservices-based architecture using Spring Boot, enhancing system scalability by 40%.• Designed RESTful APIs for seamless integration with third-party systems, reducing integration overhead by 25%.• Developed Angular-based web interfaces and responsive pages using HTML, CSS, and JavaScript, improving user satisfaction by 30%.• Built Apache Kafka-based messaging systems, ensuring 99.9% uptime for reliable inter-service communication.• Automated deployments using Jenkins pipelines, Docker, and Kubernetes, accelerating delivery timelines by 20%.• Secured applications with OAuth2 and JWT-based authentication, enhancing data protection for over 10,000 users.• Leveraged AWS services like EC2, S3, and RDS to deploy and manage scalable applications.• Achieved 95% test coverage by implementing JUnit-based unit and integration testing frameworks.

• Designed and tested RESTful APIs using Spring Boot, ensuring 99.5% API uptime and seamless multi-system integration.• Migrated a monolithic application to a microservices architecture, achieving a 35% boost in performance and scalability.• Built responsive front-end solutions with React and Redux, reducing page load time by 20% and enhancing user experience.• Optimized PostgreSQL database schema and queries, reducing execution time by 20% and improving overall efficiency.• Led AWS infrastructure optimization, reducing cloud costs by 15% while ensuring 24/7 service availability.• Developed and executed unit and integration tests with Mockito and Jest, maintaining high-quality code and system reliability.• Streamlined project collaboration by implementing a Git-based version control system, cutting code integration errors by 40%.

• Engineered backend components using Spring MVC, enabling modular and maintainable code for 30% faster deployments.• Implemented Spring Data REST to expose repository-based APIs, streamlining CRUD operations with MongoDB.• Created interactive front-end interfaces using AngularJS, enhancing user engagement by 25%.• Leveraged MongoDB indexing and aggregation features to boost data performance by 30%.• Streamlined deployment processes using Ant, reducing build times by 20% and improving overall efficiency.