Sai Harika

Led end-to-end SDLC activities, including system architecture, development, deployment, and maintenance of distributed web and client-server applications. Built responsive web applications with ReactJS, Redux, Node.js, and Bootstrap, integrating with microservices and backend APIs. Developed scalable RESTful APIs and GraphQL services with secure authentication using OAuth 2.0, JWT, and Apigee. Delivered microservices-based solutions with Spring Boot, Kafka, RabbitMQ, Docker, Kubernetes, AWS, and GCP, ensuring high scalability and resilience. Designed and optimized data models for relational (MySQL, PostgreSQL, Oracle) and NoSQL (MongoDB, Cassandra) databases. Drove cloud-native development with AWS (EC2, S3, CloudFront, Lambda, SNS, SQS) and GCP (Cloud Run, Pub/Sub, BigQuery, Firestore). Automated CI/CD pipelines and monitoring using Jenkins, Docker, Kubernetes, and Pivotal Cloud Foundry (PCF). Integrated Snowflake into Java-based architectures to enhance real-time data processing. Built real-time analytics dashboards with Splunk and ELK Stack (Elasticsearch, Logstash, Kibana) for performance monitoring and optimization. Developed cross-platform mobile applications using React Native, maximizing code reuse across iOS and Android. Implemented security best practices for cloud infrastructure, APIs, containers, and application layers. Collaborated with cross-functional teams in Agile environments, leveraging JIRA, Confluence, Git, and Bitbucket for streamlined project execution.

Experienced in full SDLC, Agile methodologies, and Test-Driven Development (TDD). Designed and developed responsive UI with React.js, Redux, JavaScript, HTML5, CSS3, and Bootstrap. Built and integrated microservices with Spring Boot, Spring Cloud, Node.js, GraphQL, and REST APIs. Implemented Kafka producer/consumer services for real-time messaging and event-driven architecture. Designed scalable cloud-native solutions on AWS (EKS, EC2, S3, Lambda, API Gateway) and GCP (Cloud Build, Cloud Run, Pub/Sub). Containerized and deployed Java and Node.js applications using Docker, Kubernetes, OpenShift, and PCF. Developed data-driven applications with MySQL, PostgreSQL, MongoDB, and Elasticsearch. Integrated CI/CD pipelines using Jenkins, Kubernetes, and Terraform to automate deployment. Implemented real-time analytics dashboards using ELK Stack (Elasticsearch, Logstash, Kibana) and Splunk. Enhanced application performance with AWS serverless architectures (Lambda, SNS, SQS, DynamoDB). Applied Java 8 features (Streams, Lambdas, Time API) to optimize backend services. Built Python-based automation scripts for Kubernetes management and monitoring. Migrated monolithic applications to microservices and cloud platforms (AWS/GCP) for scalability and resilience. Focused on secure, high-availability deployments with Kubernetes network policies, IAM, and encryption best practices. Collaborated in Agile teams using JIRA, Git, Bitbucket, and Confluence, driving continuous delivery and quality improvement.

Developed web and enterprise applications using Java, J2EE, Spring MVC, Spring Boot, Hibernate, and JSP. Migrated monolithic Spring applications to cloud-based microservices with RESTful APIs and Spring Data JPA. Built scalable and reusable components using MVC architecture, DAO, DTO, and Business Delegate patterns. Developed dynamic UI with Bootstrap, AngularJS, HTML5, JavaScript, and AJAX for responsive front-end interfaces. Integrated SOAP web services using Apache Axis and implemented EJBs for backend operations. Designed databases, wrote complex SQL queries, stored procedures, and optimized database interactions. Automated builds using ANT and ensured application reliability through unit, integration, and performance testing. Used Log4J for logging, and collaborated in Agile environments with a focus on debugging and deployment optimization.