SUMMARY

• 6+ years of experience in the Java/J2EE development, involved in complete software development life cycle including requirement gathering, analysis, design, development, deploying and testing.
• Extensive experience in Java Application Development, Enterprise java and Objected Oriented Programming (OOPS).
• Experience in development of application of J2EE - Java, Servlets, JSP, AJAX, Spring Framework, Spring Core, ORM, XML, XSLT, DOM, DAO, JSON, JMS, Struts, Scala and JavaScript.
• Experience in working using J2EE design pattern like Factory, Singleton, and Front Controller.
• Strong experience in MVC (Model View Control) architecture implemented with Spring Framework and achieve CRUD (create, read, update, delete) to manipulate database.
• Exposed to web services using SOAP, REST, JAX-WS, JAX-RS and Apache Axis.
• Good experience in developing rich and complex Web UI using AJAX, HTML/CSS, JavaScript, jQuery, Redux and Bootstrap with ReactJS framework.
• Experience in JavaScript framework like Node.js
• Good experience in various Database like Oracle, DB2, NoSQL (MongoDB) and SQL (MySQL and PostgreSQL).
• Experience in writing complex SQL commands to execute customized operations.
• Experience in Manipulating data from database based on Spring Data JPA, Spring JDBC and Hibernate framework.
• Experience in handling collections of data using Java Stream.
• Experience in Creating and Managing Spring bean objects using Spring IOC Container.
• Experience in designing authentication & authorization systems with Spring Security, Spring AOP and Oauth 2.
• Good Experience in developing Restful Web API constructed by Spring MVC and Jersey.
• Experience in using API testing tools likes Postman to test API.
• Developed Mobile Android application by importing React Native project to Android studio.
• Experience in Django/Python framework.
• Good knowledge of GIT version control.
• Good experience with Apache Maven for project building and compiling.
• Experience of using Junit for unit testing and debugging.
• Experience of deploying Java web projects on local containers such as Apache Tomcat,
• Experience of developing projects on cloud servers such as AWS and Heroku.
• Developed Use Case Model, Use Case Diagram, Class Diagram, sequence diagrams using Microsoft Visio and other drawing tools.
• Experience with java multithread programming to develop multithread modules and applications.
• Strong experience in UNIX and LINUX.
• Experience in design and development with IDE like Eclipse and IntelliJ.
• Good communicative and collaborative skills to work with multiple local team members and remote team members.
• Good experience in Waterfall methodologies, Agile Methodologies, CI / CD and SCRUM software development process.
• Great enthusiasm to study new technologies.

TECHNICAL SKILLS

Programming Language: Java, Python, C, C++, SQL.

Technologies: JSP, JDBC, Spring 4.0/3.x, Hibernate, Web Service, SOA, AJAX, Kafka

UI: HTML/CSS, JavaScript, jQuery, NodeJS, ReactJS, Bootstrap

Development Tools (IDE): IntelliJ, Eclipse, MS Visual Studio, Android Studio

Web/Application Servers: Tomcat, AWS, Heroku, Kubernetes

Design Pattern: MVC, Front Controller, Façade, Singleton, Factory, Abstract Factory, Prototype

RDBMS: Oracle, MySQL

Platforms: Windows, UNIX, LINUX

Testing Tools: JUnit

Version Control: GIT

Methodologies: CI/CD, Agile MethodologiesBuild Tools Maven, Jersey, Docker

Project Management Tool: JIRA

PROFESSIONAL EXPERIENCE

Confidential, San Francisco, CA

Java Developer

Responsibilities:

• Gathered requirements from clients and did high level UI design and constructed distributed microservices system to construct the Java/J2EE project.
• Created UML diagram (sequence diagrams, class diagrams and page flow diagrams) using Microsoft Visio.
• Developed microservices using Spring Boot framework.
• Developed web application using core java Threading and Collection.
• Used Restful web Services to expose certain functionalities of the application.
• Used Spring Dependency injection (IOC) feature for Bean wiring.
• Used Spring integration with MVC and Hibernate.
• Created Object-Relational mapping using Hibernate 3.0.
• Configured and Used Spring Data-hibernate to achieve CRUD operation to MySQL and MongoDB database.
• Used Oracle and PL/SQL for storing and retrieving customer account information
• Wrote SQL command to achieve customized sorting and searching operations on MySQL databases.
• Implemented Spring transaction management for some database transactions.
• Developed authentication & authorization system by using Spring Security and Spring AOP.
• Used Maven to compile and generate WAR and JAR files.
• Used Junit to test each subsystem.
• Deployed the Spring application on Apache Tomcat locally and on Amazon Web Server (AWS) online cloud platform for product-like environment tests.
• Updated and refreshed project using GIT version control.

Environment: Java 8, J2EE, JSP, Spring Boot, Hibernate, AWS web Server, AGILE, JSON, Oracle, PL/SQL, MongoDB, JDBC, Maven, Git, Jenkins, Junit, LINUX, ReactJS.

Confidential, San Diego, CA

Java Developer

Responsibilities:

• Assisted in product testing and debugging for RC and UCP.
• Added new features and methods on UCP API.
• Added and tested GSNOW API service on Remote Configuration Server.
• Upload and trigger project using CI/CD pipeline system and gather feedback error messages.
• Used Maven for project packing, building and testing.
• Used Log4j for message printing.
• Deployed server engine in sandbox and use Atlus manifest to observe behavior in sandbox.
• Test and deployed RC under different environments and unified configuration update for all environments.
• Updated Repository setting of UCP for new features for SQL database.
• Assisted in product testing and debugging.
• Added mapping features between micro servers.
• Added supplement features and properties for Engine.
• Used Flexter to check difference between release branch and master branch and report differences.
• Used Manifest to check errors and verify before deploying to sandbox.
• Implemented One box testing to test and collect feedback of project expression in sandbox.

Environment: Java 8, J2EE, Spring Boot, Hibernate, AGILE, JSON, Oracle, XML, JDBC, Maven, Git, Jenkins, Junit, TestNG, LINUX.

Confidential, San Diego

Java Developer

Responsibilities:

• Involved in developing prototypes of the Java/J2EE project using Spring framework.
• Created UML Use Cases, Sequence diagrams, Class diagrams and Page flow diagrams using Microsoft Visio studio.
• Used MVC Pattern for the entire website backend design and Singleton pattern to execute database operation under multithreading environment.
• Finished RESTful web service to achieve transferring http requests and responses between clients and server.
• Developed authentication & authorization system by using Spring AOP and Spring Security.
• Developed Ant scripts for building and deploying Spring project.
• Developed Controller Servlets, Action and Form objects for processing of interaction with Oracle database and retrieving dynamic data using Hibernate.
• Involved Data Access Object (DAO) to retrieve data from databases.

Environment: Java, J2EE, JSP, Java Beans, JavaScript, Ant, Servlets, JDBC, Log4J, Junit, XML, XSLT, HTML, SAX, DOM, Tomcat, LINUX, Oracle.