Java Api Developer Resume
St Louis, MO
SUMMARY
- Around 6 years of IT Industry experience in Java Platform, Software Development Life Cycle (SDLC) Phases like Requirement Analysis, Design, Implementation, Testing and Maintenance of Web Based, Client Server complex large - scale, N-tier, distributed, real-time enterprise applications in domains like Banking, Healthcare, Insurance, Finance, Telecom, E-Commerce… etc.
- Strong hands on experience in developing the Enterprise and Web applications on n-tier Architecture using Java/J2EE technologies such as Core Java with OOPs, JDBC, Servlets, JSP, Java Beans, Swing, Hibernate, spring, EJBs, Struts, JNDI, JPA, JMS, JAX-RPC.
- Expertise in working with Object Oriented Programming (OOP) Concepts like Polymorphism, Inheritance, Abstraction, Encapsulation and Web services SOAP (Simple Object Access Protocol), Restful/REST (Representational state transfer), Web services components i.e., WSDL (Web Services Description Language), UDDI (Universal Description, Discovery and Integration).
- Proficient in building Web/User Interface (UI) using HTML/HTML5, DHTML, XHTML, AngularJS, CSS/CSS3 and JavaScript, JSON, AJAX, Bootstrap, XML, CSV, jQuery that follows W3C Web Standards and are browser compatible.
- Expertise in software design patterns/frameworks J2EEDesignPatterns (MVC, Business Delegate, Service Locator, Data Transfer Objects, and Data Access objects) and GOF (Gang of Four) Design Patterns (Factory Method, Singleton)
- Strong working Experience in usingsource code/version control systems/Tools such asCVS, SVN, Grunt Spud, GIT.
- Having good familiarity in using JIRA tool for bug tracking, issue tracking, and project management and also HUDSON, Jenkins tools for continuous integration in testing.
- Excellent knowledge of implementation of AOPs (Aspect Oriented Programming) like JBoss AOP, Spring AOP for Logging using Log4j, LogBack… etc., Transactions using JTA, and Messaging using JMS.
- Good expertise in working with Web Services along with Apache SOAP, REST, WSDL some other services like AXIS, JAX-RPC, Jersey API.
- Exposure to SOA and integration with J2EE applications.
- Experience in LDAP for authentication scheme and in middleware technologies, MQ services
- Strong working exposure on building and deploy tools - Apache Ant, Maven, Gradle with Hudson and Jenkins build.
- Having good familiarity with Application Servers and Web servers like IBM WebSphere 6.x(WAS), Oracle/BEA WebLogic, JBoss and Tomcat, Glassfish.
- Worked on XML technologies with JAXB, JAXP, XPath, XSD, SAX, DOM parsers
- Worked in Relational DBMS concepts and experience in Oracle 11g, Microsoft SQL Server 2008.
- Hands-on experience in working with SDLC (Software Development Life Cycle) methodologies like Agile/Scrum and Waterfall methodologies
- Good familiarity in working with Query languages like SQL and PL/SQL and Query Language concepts like Stored Procedures, Functions, Packages and DB Triggers.
- Good working knowledge on Monitoring Cassandra cluster for resource utilization and Cassandra maintenance and tuning - both database and server.
- Experience in writing test cases for unit testing in Selenium.
- Expert in developing Java Selenium Web Driver/RC/IDE/GRID test scripts using Java, JavaScript, Python and Ruby and Test Frame works using Testing/Junit, ANT/MAVEN build tools.
- Strong working experience on IDEs like MyEclipse 5.1, IntelliJ IDEA, IBM RAD, Eclipse 3.2, and Net Beans for developing enterprise applications and deploying web services on Apache Axis 1.2.
- Excellent analytical and critical thinking, creative problem solving, quick learning, interpersonal and client interfacing skills
- Design and code from specifications, analyzes, evaluates, tests, debugs, documents, and implements complex software apps.
- Experience in working with Cloud technologies like Amazon Web Services (AWS) and Cloud computing infrastructure such as Amazon SQS, Amazon Dynamo DB, Amazon EC2, Amazon S3 and Amazon Red Shift.
- Strong knowledge on working with Cloud Computing and experience setting up the development environment using Microsoft Azure cloud services, AWS (Amazon Web Services).
- Good experience in NoSQL databases like Mongo DB, Cassandra and relational data modeling, object-relational integration (ORM).
TECHNICAL SKILLS
Languages: C,C++, JAVA JDK 1.4/1.5/1.6/1.7/1.8 , SQL
J2EE Technologies: JSF,XML Parsers, Portals, JNDI, Struts, JSP, ServletsHibernate, Tiles, SOAP, REST, Spring, Java Beans, JSTL, JDBCJMS, Web Services, AJAX.
Frameworks: Apache Tiles, EJB, Struts, Spring, Hibernate, iBatis.
Web Technologies: HTML,Java Script, Bootstrap, AngularJS, CSS, NodeJS.
Databases: Oracle, DB2, POSTGRESQL, My SQL, SQL Server.
XML Technologies: XML,SAX, DOM, XSL, XSLT, XPath, WSDL.
Web & Application Servers: Web logic, IBM WebSphere, Apache Tomcat, JBossGlassFish .
Developer Tools (IDE): Eclipse, Net Beans, Visual Studio, IntelliJ IDEA.
Tools: Tortoise SVN, CVS, VSS, GitHub, Bugzilla, PgAdmin-4Toad, DB Visualizer, Apache Ant, Apache Log4j, JUnit.
Operating Systems: Windows XP/7, Linux/Ubuntu
SDLC Methodologies: Agile,Waterfall
PROFESSIONAL EXPERIENCE
JAVA API Developer
Confidential - St. Louis, MO
Responsibilities:
- Followed Agile software methodology for project development.
- Developed application on Spring framework by utilizing its features like Spring Dependency injection, Spring Web flow with Spring MVC and Spring BOOT in IntelliJ IDEA.
- Used Hibernate Annotations concept to retrieve data from the database and integrate with Spring BOOT to interact with back end SQL Server.
- Used Data Source concept to connect to Database and retrieve the information from DB and designed one Rest Service to display the output.
- Also Used Quartz Scheduler, to run the program very often and hit the database and display the results in JSON format.
- Used CSV Reader to convert the csv files into JSON format which required to create as Task in SQL Database.
- Also added Quartz Scheduler to the CSV Reader to move the Files from one Directory to another after Processing the Data to DB.
- Developed Rest Api to processes the data from DB to another Rest Service.
- Developed Restful Webservices to CREATE, DELETE and UPDATE the Appointments in Outlook using EWS Library.
- Also developed the Scheduler Job to look after Outlook calendar to find the Busy Timings of the USER using Quartz and CRON Triggers.
- Used NoSQL DB like MongoDB to store all the Data which we processed to create Tasks and to Schedule those using Click Software.
- Used Mongo Chef 3T Studio as Mongo UI to check the flow of Data.
- Created Container’s for Api’s using Docker in LINUX to get deployed in Rancher Server.
- Used Jenkins build and deploy for Continuous Integration and Continuous Deployment.
- Used SQL Queries to look after the Data that stored in MS SQL Server 2016 Management Studio.
- Involved in Core Java concepts like Collections, Multi-Threading and Serialization.
- Extensively performed User Interface validations on client-side.
- Used JIRA tracking tool for assigning and defect management.
- Logging framework Log4J2 is used for log messages.
- Developed Rest Api in Node JS using express service.
- Developed Kafka Messaging System in Api’s to behave as Producer and Consumer using Kafka Wrapper.
- Used Zookeeper, to set the offset to the Api’s and to prevent the loss of messages when passing from one api to another in the system.
Environment: Java 1.7/1.8, Spring MVC, Spring BOOT, Hibernate, Node JS, MongoDB, Kafka, Zookeeper, Docker, SQL Server, Log4j2, Jenkins, Maven, MobaXterm, Mongo Chef 3T Studio, EWS, Apache Tomcat, BitBucket, git, Quartz, Jira, IntelliJ and WebStorm IDE.
Full Stack JAVA Developer
Confidential - Charlotte, NC
Responsibilities:
- Followed Agile software methodology for project development.
- Extensively worked on developing UI components using Angular (1.4/2) and JSON to interact Restful services like Jersey API.
- Data validations were implemented for critical functionalities using Angular (1.4/2) and JavaScript.
- Responsive development is implemented using Bootstrap and CSS3 media queries.
- Developed the GUI's using HTML/HTML5, CSS/CSS3, JSP and Angular (1.4/2) framework components using Web Storm IDE.
- Developed application on Spring framework by utilizing its features like Spring Dependency injection, Spring Security, Spring Web flow with Spring MVC.
- Involved in designing and deploying multitude applications utilizing almost all the AWS stack (Including EC2, Route53, S3, RDS, Dynamo DB, SNS, SQS, IAM) focusing on high-availability, fault tolerance, and auto-scaling in AWS Cloud Formation.
- Used Hibernate named queries concept to retrieve data from the database and integrate with Spring MVC to interact with back end persistence system (Oracle11).
- Request and Response mapping using Spring (AOP) from and to the application server by annotation-based spring configuration in Eclipse.
- Creating EC2 instance for the application and we used S3 as our storage container to deploy jar files.
- Performed bug tracking and Unit Testing using TestNG and Find Bugs.
- Utilized core J2EE design patterns such as DTO (Data Transfer Object) in the implementation of the services.
- Used MOCKITO to develop test cases for java bean components and test them through TestNG framework.
- Experience working with Splunk for searching logs and debugging issues in dev and prod environments.
- Experience working with Fiddler for searching logs on UI issues in dev and Prod Environment.
- Developed and configured Jasmine test cases to test the Angular controllers for UI in Jasmine framework (JavaScript Testing Framework) in WebStorm IDE.
- Worked with Mongo DBs to listen to JMS and process messages.
- Used HIV SQL to store the large data in the form of tables in Database and this is also used to retrieve the data from Database.
- Used Apache Camel to integrate spring framework.
- Using HIV SQL, we can compute by columns, HAVING Clauses and Group By Clauses.
- Design and code from specifications, analyzes, evaluates, tests, debugs, documents and implements complex software apps using Tableau.
- Developed Quartz Jobs for generating the Documents.
- Designed and developed automation tool suite to automate different testing scenarios on the applicationusing Selenium.
- Experience in developing Test Strategy, Test Cases, Test Plan and Automation test scripts using Selenium.
- Writing the enhancements and migrating the existing programs using Test Driven Development (TDD) software development process.
- Extensively performed User Interface validations on client-side.
- Used Maven for application build and Jenkins for continuous integration and deploymentand also used JRebel to deploy code onto server. And Branching, Tagging, Release Activities on Version Control Tools like GIT.
- Used JIRA tracking tool for assigning and defect management.
- Used Tortoise SVN for maintaining the component and for release and version management.
- Logging framework Log4J is used for log messages.
- Wrote Unix Shell scripting in launching the EC2 instance and in storing the data in S3 Bucket.
- Used Amazon RedShift to run directly SQL queries against exabytes of unstructured in Amazon S3.
Environment: Java1.7, JSP, Spring MVC, Spring Core, Hibernate, SOAP Services, XML, XJB, Restful WS, Angular (1.4/2), HTML, JSON, Oracle 11g, JBOSS, Eclipse, Maven, Apache Camel, SQL Developer, SVN, Log4J.
JAVA Developer
Confidential - Eagan, MN
Responsibilities:
- Involved in analysis, design, and development of e-bill payment system as well as account transfer system and developed specs that include Use Cases, Class Diagrams, Sequence Diagrams, and Activity Diagrams.
- Involved in using Core Javaconcepts - Collections, Exception Handling, Multi-Threading, Serialization.
- Created batch framework by using Spring Boot.
- Developed the application using Spring Framework that leverages classical Model View Layer (MVC) architecture.
- Created RESTful services like Dropwizard framework for various web-services involving both JSON and XML.
- Involved in creating spark clusters in the middle layer and tried to send notifications to the user.
- Extensively used Service Oriented Architecture (SOA) to integrate widely disparate applications, that are Web based and uses multiple implementation platforms.
- OAuth is a open standard for access delegation, so that interest users that access the websites and the information on other websites.
- Designed clusters in Cassandra and exposed to client side to send notifications.
- Writing the enhancements and migrating the existing programs using Test Driven Development (TDD) software development process.
- Developed UI components and faces-config.xml file of JSF MVC framework.
- Used EJBs (Session beans) to implement the business logic, JMS for communication for sending updates to various other applications and MongoDB for routing priority requests.
- Used AJAX and JavaScript for validations and integrating business server side components on the client side with in the browser.
- Involved in creating clusters using Kafka messaging system to send the notifications to all the enrolled customers.
- Implemented the Project structure based on Spring MVC pattern using spring boot.
- Extensively used Spring JDBC in data access layer to access and update information in the database.
- Deploy our project in localhost using Apache Tomcat.
- Used SaaS software for this application to available to the customers over internet.
- Using SaaS, software and associated data are centrally hosted on the cloud server.
- Involved in writing the ANT scripts to build and deploy the application.
- SaaS application is accessed by users using a thin client layer via web browser.
- Involved in working in QA Automation Using Selenium.
- Writing Automation Test cases and fixing issues for regression test suite.
- Implemented the application using Agile development methodology.
- Used XSL/XSLT for transforming and displaying reports. Developed Schemas for XML.
- Actively participated in the daily Scrum meetings to produce quality deliverables within time.
Environment: Java, J2EE, Core Java, Spring Boot, Spring Frame work, MVC, RESTful, JSON, XML, SOA, TDD, JSF, EJB, JMS, AJAX, JavaScript, Spring MVC, Spark, Scala, Eclipse, Cassandra, JDBC, SaaS Apache Camel, Kafka, ANT, Selenium, AGILE-SCRUM, Tomcat.
Software Developer
Confidential
Responsibilities:
- Developed the system by following the agile methodology.
- Involved in Analysis, Design, Development, Unit Testing and Load Testing of the Application.
- Built data-driven Web applications with server side J2EE technologies like Servlets/JSP/EJB. And Generated Dynamic Web pages with JavaServer Pages (JSP).
- Used Struts MVC Framework, JSP, Servlets, JavaScript, Ajax, XSL, CSS, DHTML, XHTML and HTML for developing UI Screens.
- Implemented Oracle Queries and Triggers using SQL Server, SQL and PL/SQL.
- Designed the Web application implementing the Struts framework for Model-View -Controller (MVC) pattern to make it extensible and flexible.
- Developed various javaobjects (POJO) as part of persistence classes for OR mapping with databases.
- Developed and deployed EJB 3.0 bean components on WebLogic application server.
- Written stored procedures in DB2 and created tables and wrote Joint operations in DB2.
- Obtained Message Driven Beans functionality using Scheduler timers and Session beans, JMS to listen for test orders and test results and update database.
- Wrote Unix shell scripting. And Involved in development and deployment of application on Unix environment.
Software Developer
Confidential
Responsibilities:
- Responsible for coding the business logic using j2ee technologies.
- Used Spring AOP for cross cutting concerns like logging, security and transaction management.
- Used Spring Framework as middle tier application framework, persistence strategy using spring support for Hibernate for integrating with database.
- Developed the presentation layer written using JSP, HTML, CSS.
- Consumed SOAP based web services, created stubs using Apache Axis.
- Developed JMS based customized Queuing System for fault preferences.
- Used IBM WebSphere and JBoss as the Application Servers.
- Developed Query Engine Module using EJB 2.1.
- Written crystal reports and it allows users to graphical design data
- Used DB2 as database and created tables and written stored procedures in database.
- Tested performance across platforms using SOAP UI.
- Developed Stored Procedures, Triggers and Functions. Actively involved in tuning SQL queries, Stored Procedures, Triggers in Informix.
- Agile delivery of software using practices of short iterations, sprints, Scrum.
- Junit test cases for all the APIs and business logic.
