· Altered parts of code by using Java 8 technologies such as Lambda Functions, Streams.· Experienced with Software Development Life Cycle (SDLC) with object oriented of business process and worked on developing Service oriented architecture and Microservice architecture and integrating with Spring Boot Rest applications in agile development environment.· Worked on extracting useful information from the previous application documents.· Developed API’s based on the documentation given to us.· Designed the application using Spring framework to relieve the Components from Dependencies.· Familiarity with REST API’s by developing and consuming RESTful· Used GraphQl for manipulation language for APIs, and a runtime for fulfilling queries with existing data· Experience in using NoSQL (MongoDB) data models document, key-value & wide column, or graph model.· Designed and implemented the Mongo DB schema. Wrote services to store and retrieve user data from the Mongo DB for the application on devices. · Wrote data mutations in GraphQL which allows user to update their username and password information.· Setup and benchmarked Hadoop/HBASE clusters for internal use.· Developed Map Reduce programs for data analysis and data cleaning.· Used Hive and created Hive tables and involved in data loading and writing Hive UDFs.· Modernizing the Mainframe data processing using Hadoop.· Used SQOOP to import data into HDFS and Hive from other data systems.· Developed PIG Latin scripts for the analysis of semi structured data.· Continuous monitoring and managing the Hadoop cluster through CLOUDERA Manager.· Migration of ETL processes from RDBMS to Hive to test the easy data manipulation· Wrote corresponding one-one REST methods to implement respective change requests.

· Experienced with Software Development Life Cycle (SDLC) with object oriented of business process and worked on developing Service oriented architecture applications in agile development environment.· Designed and Developed Micro Service based architecture using SpringBoot Application.· Spring Boot 4.x Framework IOC design pattern to provide relation between application components. Separated application configuration and dependency specification from actual application code.· Converted a monolithic app to microservices architecture using Spring Boot using 12-factor app methodology. Deployed, Scaled, Configured, wrote manifest file for various Microservices in Cloud.· Implemented logging in the application using Spring Framework AOP 4.x module to know the application status.· Used Spring Data (JPA) module for performing CRUD operations on database.· Involved in implementing Hashing Algorithm for quick lookups and to impose better security.· Developed REST web services using Spring Boot 4.x to extract client related data from database.· Used Postman for testing RESTful API web services.· Involved in writing Thread Safe blocks for multithread access to make valid transactions.· Implemented Spring Security for the login authentication, credit reports and applicant information using OAuth 2.0.

• Used the core-concepts of java such as Stream API, Lambda and Collections for business logic development.• The application is built on Micro-services architecture and was implemented using Spring Boot 2.0 Framework.• Configured MySQL 8 DB database schema and binding are done using Spring Data Java Persistence API 2.0 and Hibernate 5.1.9.• Used JMS (Apache KAFKA) for asynchronous exchange of information between applications Implemented Spring Security for the login authentication, credit reports and applicant information using OAuth 2.0• Created and consumed REST web service, for secure retrieving of medical intern documents.• Used Docker containers for deploying the application.• Followed Test driven development (TDD) and written test cases using JUnit 4.0 and Mockito2.0.• Utilized Git Version Control system and Jenkins for the continuous integration and continuous deployment of the project. • Generated reports using Jasper Reports for monthly analysis.

• Designed and Developed a multi-platform responsive UI framework for the solution using HTML5, CSS3, Bootstrap, Angular2, and additional JavaScript libraries.• Developed spring boot based micro services from scratch and architecting with spring cloud components which are based on Netflix OSS to make the services cloud ready.• Experienced in designing REST endpoint contracts and Documenting using swagger to be ready for consumption by several clients.• Worked on AWS as a cloud environment for micro service deployment.• Developed Ribbon Clients with Netflix Ribbon for load balancing and used Netflix Hysterix for fault tolerance and viewing the dashboard.• Developed Application for Spring Cloud with Netflix Eureka to create the discovery Server and the discovery service and clients.• Developed Gateway Service using Netflix Zuul to redirect service calls and created Spring Cloud Config Server Using Spring Boot to configure the application.• Developed DAO layers in the micro service using Hibernate ORM for persisting the data in relational database systems like Oracle.• Involved in creating the Build and Deployment scripts for the application using Maven.• Used Continuous delivery / Continuous Integration (CD/CI) tools like Docker, Jenkins to deploy this application to AWS along with GIT for Version Control of code for incremental development.• Extensively worked on focusing on AWS services like EC2, Cloud Watch, Cloud Front, IAM, S3, Amazon RDS, Elastic Cache, SNS, SQS.

· Used Core Java Concepts like OOPs, Multithreading and Collections in the application.· Used JDBC in the DAO layer to interact with the database.· Integrated JAVA EE technology JSP framework with hibernate for the persistence layer access for creating of the tables in the Oracle 11g Database.· Used Apache JNDI Basic Data source in DAO layer to access and update information in MySQL, developed database configuration files (dao context.xml) for object relational mapping with the database, fine-tuned performance by optimizing query and data caching mechanisms.· Involved in development of the User Interface with JSP, Servlet 3.0, JSTL, HTML5, CSS, JavaScript.· Involved in Unit Testing of various modules by generating the Test Cases.· Used Rally for Bug tracking and management of project.· Integrated application with Google API Services like Google Geolocation API.· Responsible for building the code dependencies using Maven.· Deployed the application on AWS-EC2 and configured the environment using Elastic Beanstalk.

• Developed application using Java/J2EE platform. Implemented the Model View Control (MVC) structure.• Implemented server-side programs by using Servlet, JSP and JDBC.• Involved in creating basic SQL for CRUD Operations and advanced SQL for procedures.• Created DAO classes to implement CRUD operations by using JDBC transactions.• Tasked with creating POJO classes as well as Login page server-side and client-side validation.• Applied Java Collections such as HashMap, List to store data and passed along with JSP efficiently.• Applied Object-Oriented Programming (OOP) principles by using Interface, Abstract, Overriding and Overloading.• Designed and developed very complex and large web pages using HTML, CSS, jQuery and Bootstrap for Dynamic web pages.• Worked on form validation, error handling and event handling using JavaScript and jQuery.• Used Advanced Core Java concepts of Collections, Generics, Multithreading, Synchronization for Design Patterns