Nikhil Dev Email & Phone Number

• Exposed to Agile Scrum and involved in backend development of core platform• Developed new features based on core platform under Spring framework• Redeveloped previous Recommend System for users and created related APIs and data visualization to process business prediction, especially about users subscription churn rate and preference churn rate, and implemented creating dataframe, building model and processing prediction using machine learning technologies like h2o.ai, Spark MLlib and matplotlib• Processed EMR prototyping to create Spark applications on Amazon Web Services for machine learning• Developed and configured machine learning platform based on h2o.ai and deployed platform to Amazon Web Services using AWS SDK• Developed scripts using node.js and node-cron to schedule routine tasks for updating data sources and uploading prediction reports on AWS S3• Performed data persistence through Java Dari framework and Hibernate to store data to local databases like MySQL and PostgreSQL and remote Content Management System (CMS)• Created scripts to convert Java Object from/to JSON Object using Jackson• Created the HTTP requests for sending JSON Object according to remote server logs and tested through Advanced REST client• Involved in migration of previous platforms from Spring to Spring Boot• Involved in Test Driven Development (TDD) using JUnit and Mockito• Performed deep learning experiment using MXNet and Tensorflow framework to improve prediction• Involved in integration and performance monitoring and tuning using VisualVM• Involved in development in IP geolocation service like geofencing using Maxmind GeoIP library• Built and deployed project using Maven

• Involved in Agile Scrum methodologies to do requirements gathering analysis and planning• Designed and developed back-end function with several Java design patterns such as Data Access Object, Singleton, MVC, and Factory patterns• Used Spring framework as business logic tier to perform IOC, AOP and integration with Spring MVC to define Controller, action mappings, services, DAO and DAOimpl to implement CRUD operations interactive with persisting objects• Involved in multi-threading process development to handle an asynchronous write-behind cache for database update• Integrated Spring Security to provide security features like Authentication/Authorization• Performed ORM with Hibernate to design and create the mapping classes, sessions, transactions, HQL and Criteria to fetch and persist data• Developed MongoDB for data buffer and involved in configuration and deployment of Oracle as the database, wrote stored procedures using PL/SQL for data entry and retrieval in Reports module• Used JMS and ActiveMQ to pass messages as payload to track different statuses, milestones and states in the workflows• Exposed in websockets programming for providing real-time communication between client and server• Configured and deployed applications on cloud server under Amazon Web Services using EC2, S3, Elastic Beanstalk, RDS• Implemented transaction function through third-party API provided by Visa, Stripe, PayPal, Square• Used SOAP, WSDL, JAX-WS to produce web services, generate stubs and consuming the existing web services• Developed JUnit test cases for Unit testing, integration and Functional Testing, and ran automated unit tests using Mockito for the purpose of Test Driven Development

India

• Involved in the data middleware development and implemented web applications• Developed Spring MVC to implement administration management control layer• Developed the application using Spring Framework that integrate all components together• Developed MongoDB as data buffer layer and MyBatis for data persistence in data access layer and processed CRUD for the data in the database• Used Oracle database and used the Stored Procedures and Triggers in the application• Configured and deployed the web applications on WebLogic Application Server• Fetched data information from the entity class according to the third-party APIs like Bloomberg API and Reuters API• Involved in web scrapping using Python and Python.rq for large scale distributed data collecting• Used Web services - WSDL and SOAP for getting data history and log record from third party• Tested remote server’s functions responding by using SOAP UI• Designed the Graphical User Interfaces (GUI) using HTML, CSS, AngularJS, Bootstrap, JSP, and AJAX• Developed D3.js for the purpose of data visualization and implemented real-time data visualization process• Developed JMS and ActiveMQ for messaging among different clusters• Generated Microsoft documentation like doc, excel by using Apache POI• Used Log4J to capture the log that includes runtime exceptions, monitored error logs and fixed the problems• Implemented TDD and used JUnit test cases for all the developed modules and Mockito Framework to develop mock objects during Semi Automated Testing phase• Processed Object Oriented Analysis, Design and Development of Applications with UML diagrams using Enterprise Architect

• Used Spring framework to implement the Dependency Injection for building a loose-coupling system• Designed user interface based on Spring MVC to accomplish a tight and neat co-ordination of JSP, Servlets and JSTL• Designed and implemented the persistence layer by using MyBatis and generated code using MyBatis Generator• Configured development environment using JBoss application server for developers' integration testing and optimized the server for maximum throughout• Developed API centric J2EE web applications and SOAP web services and tested Web Service by using Soap UI• Developed store procedures using Oracle PL/SQL and developed complex queries for business data processing• Implemented Solr for highly scalable and fault tolerant full-context search• Designed and developed user interfaces using HTML5, JavaScript, CSS3 and JQuery• Used JSON and AJAX to implement the data transmission between front-end and back-end• Developed Single Page Application with responsive web design using AngularJS for the Validation of Payment module• Developed dynamic data visualization by using D3.js for reports• Used Log4J for maintaining application running logs and got corresponding trouble-shooting feedbacks• Used Maven plug-in and configuration files to build and deploy applications in server• Built distributed applications in Docker (Micro Service) Engine• Released the products using Agile methodology for developing the application and reported through JIRA• Developed the application by extensive usage of Object Oriented Design pattern such as Factory, Decorator, Adapter Template to ensure code readability and maintainability