Niharika Konka

✦ Spearheaded the migration from Java 11 to Java 17, optimizing application performance, security, and leveraging new language features to enhance efficiency and maintainability. ✦ Migrated web components to Angular 15, driving seamless integration and significantly enhancing the UI/UX, performance, and long-term maintainability of the application. ✦ Directed the upgrade of Apache Tomcat to Spring Boot, aligning with industry best practices to improve scalability, security, and application architecture. ✦ Architected and developed a complex Contact Tracing Module for tracking and managing COVID-19 cases, improving real-time data accuracy and public health response. ✦ Engineered and maintained RESTful APIs with Spring Boot and JPA/Hibernate, enabling high-performance CRUD operations and scalable microservices integration. ✦ Designed and implemented a microservices architecture, optimizing backend performance with REST APIs, and ensuring seamless interaction with an Angular-based frontend. ✦ Strengthened application security by configuring log4j for centralized logging and real-time monitoring, improving traceability and issue resolution. ✦ Developed comprehensive JUnit test cases, achieving 100% code coverage and ensuring robust application stability through consistent testing and validation. ✦ Conducted thorough API validation with Postman, ensuring smooth integration between frontend and backend systems, and verifying optimal system performance. ✦ Optimized database interactions by writing native SQL queries, implementing JPA, and leveraging JDBC for efficient execution of Oracle stored procedures. ✦ Collaborated within an Agile Scrum framework, actively participating in sprint planning, retrospectives, and backlog grooming, to align development with business priorities.

✦ Designed and developed microservices-based applications using Spring Boot, Spring MVC, and JAX-RS, ensuring high performance and modular architecture. ✦ Developed applications on Spring framework by utilizing its features like Spring Dependency injection, Spring Web flow with Spring MVC and Spring boot in Eclipse IDEA. ✦ Implemented dynamic routing, reusable UI components, and forms with validation using React hooks, Angular Reactive Forms, improving user experience and scalability across platforms. ✦ Integrated RESTful APIs and SOAP services, using Spring, Hibernate, and JPA for seamless interaction with Oracle, MySQL, and MongoDB databases. ✦ Leveraged OAuth2.0 and SSO to implement secure authentication for integrating with third-party services, enhancing application security. ✦ Automated CI/CD pipelines using Jenkins, Maven, and Ant, ensuring seamless code integration, testing, and deployment across environments. ✦ Optimized performance by implementing Redis caching strategies for session management and frequently accessed data in Spring Boot services. ✦ Developed scalable and dynamic Single Page Applications (SPAs) using ReactJS, React, React Router, and Redux, ensuring high-performance rendering and seamless user experience across modern browsers. ✦ Developed Spring Boot based Microservices interacting through a combination of REST APIs to build, test and deploy identity Microservices. ✦ Developed efficient inter-service communication using gRPC with Protocol Buffers, reducing network latency in microservices. ✦ Utilized Docker and OpenShift for containerizing microservices and deployed applications on AWS EC2, S3, and Lambda for enhanced scalability. ✦ Implemented Kafka producer/consumer applications for asynchronous data processing and message reprocessing with offset IDs to maintain data integrity. ✦ Utilized Redis and RabbitMQ for distributed caching and message brokering, optimizing system performance and response times.

✦ Developed dynamic web applications using Java, JavaScript, CSS3, and HTML5, ensuring high performance, security, and cross-browser compatibility. ✦ Designed responsive UI/UX interfaces using Bootstrap 4, AngularJS, ReactJS, and BackboneJS to create interactive, scalable, and user-friendly applications. ✦ Implemented client-side validation using AngularJS directives, jQuery, and JavaScript for enhancing front-end functionality and improving the user experience. ✦ Created and maintained Single Page Applications (SPA) with dynamic routing and data binding using ReactJS, AngularJS, and Redux for seamless navigation and performance. ✦ Developed interactive dashboards using D3.js and AngularJS, displaying complex data visualizations to track key business metrics. ✦ Utilized gRPC with Spring Boot for internal communication, achieving lightweight, contract-first, high-performance RPC mechanisms. ✦ Used Splunk and Kibana to monitor logs and analyze application performance, ensuring real-time diagnostics and faster issue resolution. ✦ Built and consumed RESTful APIs and processed JSON responses to ensure seamless interaction between the front end and back end. ✦ Configured RBAC, ConfigMaps, and Secrets in Kubernetes to enforce secure and dynamic application deployments. ✦ Modernized front-end architecture by converting legacy ES5 JavaScript code to ES6+ and TypeScript, improving code quality, type safety, and development efficiency. ✦ Utilized NodeJS and ExpressJS to develop server-side applications, enabling seamless interaction with client-side interfaces and building highly scalable network applications. ✦ Worked extensively on creating reusable ReactJS components with lifecycle methods, props, state management, and used Redux for centralized state management.

✦ Worked in an Agile environment, delivering regular updates and collaborating with the business team and project managers to ensure on-time project delivery. ✦ Developed and maintained server-side applications using Java, Spring Boot, and JavaScript, ensuring smooth interaction with relational databases. ✦ Designed and implemented Microservices Architecture using Spring Boot, deployed on AWS EC2 instances with high availability and scalability. ✦ Built Single Page Applications (SPA) using ReactJS, React-Router, Redux, and NodeJS to perform risk analysis and predict the impact of fraud and abuse for client applications. Developed and deployed RESTful APIs using Spring MVC, Spring Boot, and hosted microservices on PCF (Pivotal Cloud Foundry) with smoke testing and unit testing for all major components. ✦ Created and configured Kafka Topics & Partitions to process high-volume data and developed Kafka Producer and Consumer components for real-time data streaming. ✦ Implemented mocking strategies and snapshot testing in Jest, streamlining regression testing for both backend services and UI components. ✦ Implemented and managed Golang-based REST services as part of migration from legacy EJB-based SOAP APIs to enhance performance and scalability. ✦ Integrated ActiveMQ and Spring JMS API to manage and process asynchronous messages for the application’s RESTful APIs. ✦ Implemented multi-tier architectures with Jakarta EE, leveraging JSP, JPA, and EJB for secure and transactional enterprise applications. ✦ Created stateless REST APIs using JAX-RS, annotated with Swagger/OpenAPI for standardized documentation and testability. ✦ Developed Build and Release pipelines in VSTS (Azure DevOps) to automate the CI/CD process for multiple environments. ✦ Maintained technical documentation, design specs, and team collaboration workflows using Confluence to support transparency and efficient knowledge transfer across teams.

✦ Designed and developed responsive and interactive GUI using JSP, HTML5, CSS3, and JavaScript, ensuring a seamless user experience. ✦ Involved in all phases of the Software Development Life Cycle (SDLC) including requirement gathering, analysis, design, development, and testing. ✦ Developed custom modules and reusable components to extend the functionalities of core AngularJS, enhancing the scalability and maintainability of the application. ✦ Followed Agile methodology, interacted with the client, provided/took feedback on the features, suggested/ implemented optimal solutions and tailored applications to customer needs. ✦ Utilized Java Streams and Lambda Expressions to efficiently process and manipulate data, improving application performance. ✦ Built high-performance RESTful Web Services using Spring WebFlux and JAX-RS, supporting non-blocking I/O for reactive systems. ✦ Managed sprint planning, task tracking, and bug resolution using Jira, ensuring timely feature delivery and alignment with Agile/Scrum methodologies. ✦ Developed and deployed microservices using Spring Boot, Spring Batch, and Spring Security on AWS cloud infrastructure, ensuring high availability and fault tolerance, integrating through RESTful and SOAP APIs for seamless communication between services. ✦ Designed and implemented the business logic layer using Core Java, Spring Beans, and Spring Annotations with dependency injection. ✦ Configured Maven and Gradle for environment-specific profiles, artifact publishing, and code quality analysis using SonarQube. ✦ Created and optimized SQL and PL/SQL scripts for seamless data transfer and management between relational databases. ✦ Developed External Tables to read and process files directly from the database file systems. ✦ Adopted Test-Driven Development (TDD) practices by writing comprehensive JUnit test cases to ensure code reliability before implementing functionalities.