Subhash Kumar Email & Phone Number

India

Plano, Texas, United States

•Designed and coded application components in an agile environment utilizing a test-driven development approach•Extensively used Spring components and concepts like Aspect-Oriented programming, Transaction Management, Dependency Injection, DAO, and MVC•Used Hibernate to do object-relational mapping in the application. Involved in creating hibernate mapping files for class associations, inheritances, and generating sequences•Integrated Hibernate with Spring and configured corresponding XML configuration files•Implemented Java beans with JAXB Annotations for marshaling and un-marshaling of Java Objects•Developed SQL for querying the Database, Written stored procedures and triggers for SQL server•Increased database performance by utilizing MySQL configuration changes, multiple instances, and by upgrading hardware•Developed Spring Boot-based microservices in Docker and Amazon EC2 container using Jenkins•Developed AWS CLI script automation for EMR (end-to-end) and other AWS services and build Serverless Arch using Lambda (Boto3) and Step Functions•Used Maven and Jenkins to automate the Gradle build and deploy process•Came up with Test Suites and Test Cases for unit testing and implemented unit testing using JUnit•Implementation of business logic, and validation Framework using Spring Web flow and Spring MVC•Used Angular CLI to generate components, services, filters and compiled them in different environments•Designed and implemented scalable, Restful Microservices•Used Git for source code management and source tree for managing the code push, pulls, and resolving conflicts •Used Java 8 lambda expression to represent one method interface and used sequential and parallel streams in collections source•Setting up Java/J2EE development environment using Eclipse, Maven, and WebSphere•Implemented Azure Application Insights to store user activities and error logging•Developed POCs and Solutions for various system components using Microsoft Azure

Philadelphia, Pennsylvania, United States

• Designed, developed, deployed, and documented project requirements• Implemented RESTful API web services, which produce XML and JSON to perform tasks using Spring Boot and enable discovery using the Netflix Eureka server• Used Feign client, which provides an abstraction over REST-based calls via annotation• Using Liquibase for tracking, managing, and applying database changes• Used Oracle DB for persisting data• Worked with circuit breaker patterns and fail-safe in Spring Boot Micro Service applications using Hystrix• Implemented Spring OAuth 2.0 security to authorize the consumer to access the application• Used Java 8 features like parallel streams and filters through lambda expressions to handle the searching• Configured Swagger for REST API documentation• Wrote unit and integration tests to test all the desired functionality using JUnit (TDD), Testing, and Mockito• Used Jenkins as the build tool for deploying the application on Pivotal Cloud Foundry• Using Maven and Gradle as build tools• Using Log4j and Slf4j as logging frameworks to capture the log traces of applications in debugging the issues• Used GIT as a version control and Gerrit as a review tool• Used Agile (Scrum) methodology to satisfy project requirements• Used JIRA as an issue tracker tool to collaborate with testers and functional teams and track defects and change requests• Enabled actuator bindings on Kafka-dependent services to control consumers externally and get status logged in Kibana• Single-handedly led and handled DevOps support channel to support various critical DevOps issues across the entire Xfinity Mobile team• Converted the existing Jenkins build plans into Concourse pipelines, tasks, and resources and migrated the current services to Concourse CI/CD pipelines. Constructed also new services and onboarded the same for Concourse CI/CD. Also created SOPs for Concourse migration to include pre-migration and post-migration tasks from Jenkins to Concourse

• JavaScript, jQuery, and Ajax framework are used for front-end and Bootstrap for styling tags.• Migrating legacy application to new frameworks in technologies like Spring Boot Rest API and ReactJS, Nodejs• Used Core Java concepts collections, generics, Concurrency to improve the performance of the applications and to schedule tasks using Multithreading• Using DevOps tools like Jenkins, Deployment yaml, Config-map yaml, Docker and Kubernetes PODS for deployments in different environments.• CICD Jenkins for project builds and adding some mandatory checks like SonarQube code coverage etc.• Design and Development of modules using Java8 features, Gradle, Spring Boot, Apache Kafka and Microservices• GitHub for source version control and Eclipse, IntelliJ and Visual Studio IDE tool for local development• Linux commands for deploying code in UNIX servers and monitor/check logs in the application servers using Splunk• Developed scripts to run end to end smoke tests of code prior to deployment to test environments.• Building/Maintaining Docker container clusters managed by Kubernetes Linux, Bash, GIT , Docker, on GCP.• Experience on writing JUnit test cases using power Mockito for all the developed modules.• Log4j And SLF4J logging framework for application logs in case of errors or exceptions.• Used Microservices, Spring Web Flux and Reactive programming with external service calls asynchronously.

• Involved in Design, Development and Support phases of Software Development Life Cycle (SDLC).Used AGILE methodology and participated in SCRUM meetings.• Developed web interface for Users Modules using EXTJS,JSP, EXTJS, HTML, XML, CSS, JavaScript and AJAX with spring framework.• Implemented User Friendly UI design with HTML, CSS and JavaScript for client-side validation and form submission functions• Used spring framework for transfer the data from GUI to DB with Ajax framework.• Designed user friendly navigation for displaying various sections of data using jQuery.• Implemented Spring IOC & AOP.Extensively worked on Core Java concepts and expertise in Collection framework• Developed business logic and Entity Beans to manage the transactions with the database to deliver the content to the presentation layer and to store the data into the data layer.• Worked on file management, storage management and folder permissions.• Programming in Spring MVC with bean configurations. Integrated the File server with Nest server using web APIs.• Worked on Sync widget, Windows specific Sync implementation using HTML, JavaScript, jQuery, AJAX.• Implemented chat application using NodeJS and Web socket.• Integrated Zimbra mail server, Ejabber Chat server online, and Profiles using XML, LDAP• Contributed to Messaging module, implemented http push Technology using Web socket• Worked on YouTube widget, Content widget, Recommendation engine & Content profile.• Used JIRA tool for Issue/bug tracking, monitoring of work assignment in the system.• Involved in bug fixing, major releases and customization for various clients.Responsible for code reviews and design reviews.• Involved in Configuration of data source and deployment of application in development, Test and Production.• GIT for version Controlling.Used JUnit test cases to test the application and performed random checks to analysis the portability, reliability, and flexibility of the project.

Education record

Master'S Degree, Information Systems