RAGHAVENDRA TAMMINA

The objective of this project is to create or enhance a system that facilitates the secure transfer of funds between individuals or organizations, typically involving features like online payment gateways, account management, transaction processing, and settlement mechanisms, aiming to streamline payment processes and improve user experience across various platforms.

• Designed, developed, and deployed scalable web applications using Java/J2EE, Spring Boot, Microservices.
• Led the architectural upgrade from Java 8 to 17 and Spring Boot 1.x to 2.x, improving performance, security, and maintainability. Implemented solutions that reduced system vulnerabilities by 25% and increased application response time by 20%. Provided technical guidance to the development team, ensuring adherence to SDLC processes and reducing production defects by 25%.
• Accomplished OAUTH for authentication and authorization, improving security and user management with seamless Single Sign-On (SSO) functionality, reducing manual intervention and enhancing user access control.
• Engineered, deployed, and optimized fault-tolerant, highly available systems using AWS (EC2, Dynamodb, API Gateway, S3), improving system uptime and reliability by 40%. Designed and implemented scalable architectures with Spring and Microservices.
• Utilized AWS SQS for messaging between services using CQRS pattern, reducing communication latency by 30% and streamlining service integration. Architected solutions that handled high volumes of data efficiently.
• Proactively managed resources to ensure timely delivery, meeting 100% of project deadlines across multiple initiatives. Collaborated with business teams and offshore partners to align technical solutions with business requirements, reducing delivery time by 20%.
• Addressed code quality and security vulnerabilities, resolving 95% of issues identified in SonarQube, PMD,Checkstyle,Spotbugs. Architected and developed secure, high-quality code throughout the development lifecycle, ensuring maintainability and performance.
• Streamlined user experience with front-end development utilizing HTML, CSS, and JavaScript,React.js.
• Java, J2EE, React.js, Spring Boot, SQS, Microservices, RESTful web services, JPA,DynamoDB, JSON, JavaScript, Bootstrap, Gradle, GIT, JUnit, Mockito, Jenkins, CI/CD, Jira, Swagger, Postman, AWS.

This project is to create stores related applications which will process the application based on supply chain .The store users will do demand and forecast for the items and inventory process through different Services

• Designed and Built scalable applications using Spring Boot, Microservices, and Angular JS, achieving better system performance and maintainability.
• Integrated RESTful services with Angular JS front-end components, optimizing user interactions and significantly enhancing UI performance.
• Implemented Apache Kafka for inter-service communication, improving real-time data transfer and reducing system latency by 30%.
• Utilized containerization technologies like Docker for easier deployment management, leading to reduced downtime during updates.
• Lead code reviews and estimated required changes and fostering a collaborative environment, providing mentorship, and ensuring projects met all deadlines.
• Java, J2EE, Angular JS, Spring Boot, Apache Kafka, Microservices, JPA, JavaScript, Typescript, Bootstrap, Gradle, GIT, MySQL, JUnit, Mockito, Docker, Jenkins, CI/CD, Jira, Swagger, Postman.

The objective of this project is to migrate legacy project to microservices. This is the e2e automated CI/CD release strategy in cloud environments.

• Developed RESTful APIs using Spring Boot and Spring Data JPA, enhancing system integration and performance.
• Designed and implemented RESTful APIs and web services with Spring Boot and JPA, improving scalability and efficiency.
• Implemented Kafka producer-consumer applications in a Kafka cluster setup with Zookeeper for real-time data processing.
• Identified and implemented key product features, reducing the need for project-specific rewrites and optimizing development cycles.
• Coordinated with cross-department teams like QA, DevOps, and Support to ensure seamless end-to-end software delivery process.
• Followed Agile and TDD methodologies, ensuring high-quality, iterative development, and testing.

• Java, J2EE, Angular JS, Spring Boot, Apache Kafka, Microservices, RESTful web services, PCF, JPA, Mysql, Postgres, HTML, CSS, jQuery, JSON, AJAX, JavaScript, Typescript, Angular CLI, RxJS, Bootstrap, Maven, Jenkins, GIT, SQL, JUnit, Mockito, Docker, Jenkins, CI/CD, Jira, Swagger, Postman.

This project is to implement several restful web services which will be consumed by downstream services

• Led a team of developers to successfully deliver high-quality software projects on time and within budget constraints.
• Enhanced system performance with thorough code reviews, debugging, and optimization techniques.
• Managed the complete application lifecycle, adhering to Agile methodologies for iterative development and timely delivery.
• Identified and implemented multithreaded components, optimizing application performance and efficiency.
• Java, J2EE, Spring Boot, Spring MVC, JSP, Spring Security, JPA, MySQL, HTML, CSS, jQuery, JSON, AJAX, JavaScript, Typescript, Maven, AWS Code commit, GIT, JUnit, Mockito, Docker, CI/CD, Jira.

• Contributed to planning, design, and requirement analysis, ensuring alignment with project goals.
• Developed RESTful web services and SOAP endpoints using Spring, enhancing system integration and data exchange.
• Implemented Scheduler Jobs using Spring Batch, automating tasks and improving system efficiency.
• Managed multiple projects simultaneously while maintaining strict deadlines and high-quality standards.
• Developed scalable applications using agile methodologies for timely project delivery.
• Java, J2EE,RESTful web services, Hibernate, Oracle, PL/SQL, HTML, CSS, jQuery, JSON, AJAX, JavaScript,Gradle, GIT, SQL, JUnit, Mockito, Docker, Jenkins, CI/CD, Jira, Swagger, Postman.

• Wrote code to consume SOAP web services, ensuring smooth integration with external systems.
• Assisted with deployment issues by clarifying user questions and identifying problems.
• Optimized system performance through regular maintenance and updates, resulting in increased efficiency.
• Collaborated with cross-functional teams to develop innovative technology solutions for business challenges.
• Java, J2EE,Soap, RESTful web services, Hibernate,Oracle.

• Involved in end-to-end application development lifecycle.
• Maintained comprehensive documentation of development work, facilitating knowledge sharing among team members.
• Enhanced software functionality by identifying and resolving complex technical issues.
• Java, J2EE, Core, Spring MVC, JSP, RESTful web services, Hibernate

• Involved in end-to-end application development lifecycle using Java, Struts 1.x, Mysql, JDBC, JSP.
• Consistently met project deadlines by effectively managing time and prioritizing tasks according to importance.
• Analyzed proposed technical solutions based on customer requirements.
• Enhanced user experience with intuitive interface design and responsive web applications.