SUMMARY:

• Around 8 years of experience in Software Development Life Cycle (SDLC),Web Application Design, Development, Programming, Testing, Support Maintenance and End - User support using core java, java/J2EE technologies with Web Sphere and Web Logic application servers.
• Proficiency in developing secure enterprise Java applications using technologies such as JSP, SERVLETS, JAVA Beans, C++, EJB3, JMS, JNDI, JDBC, JSTL, PHP, XML.
• Worked on Object oriented design and programming in C++, Java, Python, Shell Scripting.
• Experience on core Java technologies like OOPS (Object Oriented Programming Structure), multi-threading, Collection, Interfaces, Synchronization, Exception Handling.
• Hands on experience in developing API’s/micro services using open source java-based frameworks like Spring boot and Spring Data and Spring cloud.
• Experience working in spring framework, Struts framework, O/R Mapping Hibernate framework and web services.
• Experience using Spring MVC, Spring Boot, Spring DAO, Spring Data, Spring IOC, Spring Annotations, Spring AOP, Spring Transactions and Spring Security .
• Experience in designing highly usable GUIs using HTML, CSS, JavaScript and AngularJs .
• Experience in writing unit test frameworks like MOCKITO, JMOCK and Easy Mock using java proxy mechanism.
• Experience in modeling presentation tier using StrutsMVC2 (Model-View-Controller) architecture.
• Good experience in Angular.JS, built application service layer using Angular.JS Dependency Injection.
• Developed and executed Unit Test cases using JUnit framework by supporting TDD (Test Driven Development).
• Extensive development in UNIX (AIX), Red Hat Linux, Windows NT/ 2000 / XP.
• Knowledge in Agile software development process, test driven development and Object-oriented modeling UML, Object-Oriented analysis and design, developing Use Cases, Interaction Diagrams(Sequence and Activity), Class Diagrams, and Package Diagrams using Rational Rose & Visio.
• Experience with relational databases such as Oracle, SQL Server, DB2, MYSQL and No SQL databases such as Mongo DB and good knowledge on Cassandra.
• Good working knowledge in version control tools like GitLab, Bit bucket, CVS and Rational Clear Case (repositories).
• Expertise in developing the web portals using SOA , MVC frameworks using spring and Struts .
• Good experience on web servers like Apache HTTP, Apache Tomcat and application servers JBoss, Web Logic, IBM Web Sphere and configuring them.
• Expertise in writing Packages, Stored Procedures, Functions, Views and Database Triggers using SQL and PL/SQL in Oracle 12c, 10g, 11g, 9i.
• Expertise in automating infrastructure or routine software development process for increase the efficiency, reliability, performance and agility.
• Experience using Jenkins, Maven an open source continuous Integration.
• Experience in working on Pivotal Cloud foundry (PCF).
• Participated actively in production support to fix defects reported by clients and QA team.
• Comprehensive fundamental understanding of AWS Cloud technologies.
• Involved in designing and deploying applications utilizing 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.
• Experienced in migrating applications to AWS and application deployment in the cloud (AWS) with CI/CD tools such as Jira, Bit Bucket, Confluence, Bamboo, Chef, S3 .
• Experience in developing applications using Agile, SCRUM and water fall methodologies.
• Have excellent analytical, problem solving, communication and interpersonal skills with ability to interact with individuals at all levels and ability to work independently.

TECHNICAL SKILLS:

Operating Systems: Windows, Linux/Unix

Programming Languages: C, C++, Java 8, PL/SQL, UNIX, Python, Shell

Java Technologies: Spring(BOOT, BATCH, CLOUD, INTGRATION, WEBSERVICES,ORM, DAO, WEB, MVC, ASPECT), Microservices, Struts, Core Java

Cloud Technologies: AWS, Pivotal Cloud Foundry (PCF)

Web Services: REST/RESTful (JSON), SOAP(XML)

CI/CD Tools: Jenkins, Bit Bucket, GIT Hub, SonarQube, Docker, Kubernetes

Servers: Apache Tomcat, Web Sphere, Web Logic, JBoss, Jetty

Build Tools: Maven, Ant, Gradle

Messaging Platforms: Active MQ, Kafka, Rabbit MQ

Oracle, My SQL, No SQL: Mongo DB

Development Tools: Eclipse, Intellij, Net Beans, RAD

Testing Frameworks: Postman, Cucumber, Junit, Mockito, JMock, Easy Mock

ORM Frameworks: Hibernate, IBatis, Spring JPA/JDBC

UI Technologies: Anugular.JS, Angular 2, JSF, Node.JS, JQuery, Bootstrap, HTML5, CSS, XML

Logging Frameworks: Log4j, SLF4J, Log Back

Source Control: CVS, SVN, GIT

PROFESSIONAL EXPERIENCE:

Confidential, Littleton/Colorado

Software Engineer

Responsibilities:

• Involved in Requirements gathering, Analysis, Design, Implementation, Testing, Maintenance, Documentation of application using Agile Methodologies and estimate the efforts required.
• Involved in developing the application using Java/J2EE platform. Implemented the Model View Control (MVC) structure using spring.
• Experience in working with Core Java technologies like Object Orient Programming, Multithreading, Synchronization, Collections, and Event/Exception handling.
• Implemented RESTful web services with Spring REST web services and Spring integration.
• Developed Micro-Services and created API’s using Java Spring Boot framework using Maven as a build tool and MongoDB as a database.
• Expertise in creating REST API’s by making a call to different backend systems like Oracle DB, REST Web Services, GraphQl, SOAP Web Service, MongoDB , etc.
• Experience in developing the Spring boot Microservices from scratch.
• Worked as part of Micro services team to develop and deliver Maven projects and hosted them in kubernetes environment.
• Implemented spring configuration files for the beans defined and properties to be injected into them using Spring Dependency Injection .
• Used Hibernate framework with Spring Framework for data persistence and transaction management.
• Experience in creating and understanding the open API specification using the Swagger.
• Created fully functional REST web services supporting JSON message transformation. Built on Spring 3.0 technology.
• Involved in Unit, Integration testing for different Modules in the application, Unit and integration testing, logging and debugging using Junit.
• Performed web services and APIs (WSDL, REST, XML based protocol) developing and testing by using Soap UI.
• Involved in the Development/Enhancement, bug fixing as well as in Production Support .
• Experience in using open source platform SonarQube for continuous inspection of code quality.
• Logging framework Log4j is used for log messages. Implemented Log4j for application logging and to troubleshoot issues in debug mode.
• Participated in front-end development using Angular 2, JavaScript, JQuery, HTML5, CSS 3.0 and bootstrap .
• Experience in working with Enterprise Messaging Platform (EMP) which is a home-grown product of Confidential for messaging purpose.
• Used Spring RESTful API to create RESTful Web Services, set JSON data type between front-end and the middle-tier controller.
• Experience in configuring continuous integration and continuous deployment pipeline using Gitlab-ci and GoCD .
• Implementing messaging queues for asynchronous calling betweenservices.
• Used GITLAB as version control tool.
• Used deployment & Continuous Integration (CI) tools like Maven and Jenkins .
• Worked on JUnit testing using Mockito and Power Mockito , integration testing and SOAP UI testing.
• Migrating old code into updated versions and move applications which got deployed in Pivotal Cloud Foundry to Kubernetes.
• Experience in designing and implementing AWS Solutions using EC2, S3, EBS, Elastic Load balancer (ELB), VPC and Cloud Formation.
• Experience in developing scripts using Restful API models for the purposes of integrating workflows with AWS.
• Participated in scrum meetings such as daily stand up, grooming, sprint planning, release and retrospective.
• Interact with other developers, users and various members of the team to discuss issues resolve defects and set priorities.

Confidential, Dallas/Texas

Sr. JAVA Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle ( SDLC ) using Agile Methodology and followed Scrum sessions.
• Developed the Application using latest Java/J2EE technologies such as Java 8 .
• Involved in designing the new architecture for existing application to latest technologies.
• Design and Implemented Spring framework, Spring-AOP, Spring-ORM, Spring-JDBC modules .
• Developed the web interface using HTML5, CSS3, JavaScript, JQuery, Angular.Js 2.x and Bootstrap .
• Developed Micro-Services and created API’s using Java Spring Boot framework using Maven as a build tool and Oracle as an enterprise level database.
• Developed Micro-services using RESTful services to provide all the CRUD capabilities.
• Implemented Web services using apache API and tested them using SOAP UI. Integrated the SOAP Web services to RESTful Web Services.
• Implementation of JQuery and Angular.JS to build UI and its integration with Spring framework.
• Used Angular.JS 2.x to bind data into specific views and synchronize data with server.
• System was built using Spring Model-View-Controller (MVC) architecture. Used Web services to communicate using Restful API.
• Design, develop, test and maintain the application built on J2EE, Spring and Hibernate .
• Implemented Transaction Management based on Spring AOP and Dependency Injection based on Spring IOC.
• Good working knowledge on JSF Framework.
• Used RESTful Web services and JSON objects for communication.
• Developed test classes in JUnit for unit testing.
• Used Spring AOP for the transaction management and logging.
• Used GIT to maintain source and version management and used Eclipse as IDE .
• Worked with Threads, Multithreading, Synchronization and Collection API .
• Implemented exception handling in Java Spring boot for REST API, by making use of Exception Handler and Controller Advice annotations.
• Worked on AWS cloud services like EC2, S3, RDS, ELB and EBS for installing, configuring and auto scaling.
• Effectively handled data modeling in MongoDB 3.0. Upgraded Mongo database servers from 2.6.11 to 3.0.
• Migrated applications from internal data center to AWS .
• Worked and Performed Tuning and Query Optimization in AWS Redshift and Micro-service.
• Build and continuous integration with tools like Maven and Jenkins to build jar and war files and deployed war files to target servers.
• Analyzed data using complex SQL queries, across various databases.
• Creating tables in Oracle database to store report information.
• Experienced in writing complex SQL Queries, Stored Procedures, Triggers, Views, Joins, Constraints, DDL, DML and User Defined Functions to implement the business logic and created clustered and non-clustered indexes.
• Implemented Jenkins for a central build and deploy activities by configuring Jenkins in micro service apps.
• Worked on Estimations, Code reviews and 24/7 Production support.
• Experience in working with the regulations like HKMA, ESMA/EMIR.
• Created and managed a Docker deployment pipeline for custom application images in the cloud using Jenkins.
• Used Log4j2 to log and track the application.
• Used Microservices architecture, with Spring Boot-predicated services interacting through an amalgamation of REST, Swagger, Cassandra and MQ message brokers and leveraging AWS to build, test and deploy Identity Microservices.
• Responsible for handling day-to-day technical issues, analyzed and determined root cause, facilitated resolution.

Confidential, Dallas/Texas

Sr. JAVA Developer

Responsibilities:

• Coordinated with all the teams to maintain knowledge on all functional requirements and ensure compliance to all architecture standards.
• Expertise in developing the applications using Core Java concepts like OOPS, Multi-threading, Garbage Collections and Socket Programming etc.
• Good knowledge and working experience in Object Oriented Analysis (OOA) and Object-Oriented Design (OOD).
• Experience in developing applications using Servlets, JSP, JSTL, Struts, Spring, Java Beans .
• Worked on spring framework to design and develop the business services.
• Implemented spring ORM for integrating Hibernate ORM tool.
• Build a Web Console in PHP 5 and J Query that connected to a Restful server using JSON as the data type exchange language.
• Effective use of hibernate (ORM tool) in the business layer in communicating with the Spring DAO and developed mapping files and POJO java classes using ORM tool.
• Worked on MVC Architecture like struts by using Web portals.
• Configured local Maven repositories and multi-component Ant projects with Nexus repositories and scheduled projects in Jenkins for continuous integration.
• Built Java applications using ANT and Maven and deployed JAVA/J2EE applications through Tomcat Application servers.
• Used IBM-DB2 to retrieve the data from and Oracle 10g has been used to safe the final results into the database.
• Developed Spring MVC app deployed on Web logic to orchestrate transactions by using micro services.
• Utilized Hibernate for Object/Relational Mapping purposes for transparent persistence onto the Server database.
• Implemented EJB3 Schedulers for automated batch processing.
• Used Hibernate as an implementation engine for JPA API .
• Implemented Swagger Configuration in Java Spring boot for auto generating swagger json files for REST API calls.
• Tested the application JUNIT and that was build using Maven.
• Involved in setting up Maven configuration and helping Continuous Integration (CI) Issues.
• Participated in development of a well responsive single page application using Angular.JS2 framework, JavaScript, and j Query in conjunction with HTML5, CSS3 standards, with front-end UI technologies.
• Have integrated web services including SOAP as well as REST using Apache Camel .
• Involved in developing and maintaining control files for SQL loader to load the data from SQL server to oracle database tables.
• Used Spring Boot task scheduler to load files based on specific time interval to read the data.
• Provided support to all end users and identified any issues in production.
• Used micro-framework to implement with REST API and Mongo DB (No SQL) as back end database.
• Created stored procedures for generating reports using SQL Server Reporting Services.
• Involved in implementation of MVC pattern using AngularJS 2.x , JSF and Spring Controller
• Involved in deploying systems on Amazon Web Services Infrastructure services EC2, S3, RDS, SQS, and Cloud Foundry.
• Developing a product-level cloud-based architecture in AWS .
• Used JIRA for Issue and Project management activities and for Groovy Scripting.
• Created Restful web service barcode Controller for handling the WebServices request from an UI application.
• Worked on building & deploying Java code through Jenkins, used Jenkins Amazon Web Services ( AWS ) Code Deploy plugin to deploy to AWS and worked on AWS Cloud management .
• Developed the Restful web services using spring and used spring boot for Micro-services .
• Followed Agile methodology and participated in Sprints during development.

Confidential

JAVA Developer

Responsibilities:

• Involved in requirements gathering and analysis from the existing system. Captured requirements using Use Cases and Sequence Diagrams.
• Developed the application using Struts, Servlets and JSP for the presentation layer along with JavaScript for the client-side validations.
• Developed and used JSP custom tags in the web tier to dynamically generate web pages.
• Worked with Struts (MVC Paradigm) components such as Action Mapping, Action class, Dispatch action class, Action Form bean.
• Worked on core java, using file operations to read system file (downloads) and to present on JSP.
• Designed Restful, XML, XSLT and PHP web service for handling AJAX requests.
• Used spring to manage beans to use windows session state framework to persist session to the database.
• Used spring IOC and MVC for enhanced modules.
• Used Angular.JS, Node.js and Bootstrap in effective web design.
• Used Maven for build framework and Jenkins for continuous build system.
• Extensively used OOA, OOD, OOP Concepts, Exceptional Handling and Collections Framework .
• Used Hibernate to do the object relational mapping between the tables and java objects.
• Implemented Persistence layer with ORM Framework using IBatis 3.0, JPA which Synchronize with Oracle 10g database.
• Deployed and tested the application with web server Tomcat, Web Sphere.
• Implemented the caching mechanism in Hibernate to load data from My SQL database.
• Wrote Test Cases using JUNIT as a framework.
• Used JSF 2.1 framework for building the application based on MVC design paradigm.
• Created continuous Integration builds using Maven.
• Developed GUI using Front end technologies like JSP, JSTL, AJAX, HTML, CSS and Java Script.
• Developed a code for Web services using XML, SOAP, PHP and used SOAP UI tool for testing the services proficient in testing Web Pages functionalities and raising defects.
• Participated in Code Reviews for better quality assurance and Debugged the application Module.
• Deployed the application on Web Logic server.
• Developed the Web services using SOA.
• Developed custom Angular.JS directives to build custom reusable components to use across the application pages.
• Developed back end interfaces using PL/SQL Packages, Stored Procedures, Collections.
• Designed and Developed a Data Interface switch written in C/C++ to convert dBase database calls into Oracle ODBC calls. This switch is used to connect to Oracle database from a dBase application.
• Used Jenkins and GIT to automate the process.
• Implemented both JAX-WS SOAP and JAX-RS RESTful services using Annotation based approach.
• Used Java Messaging artifacts using JMS (IBM MQ Series) for sending out automated notification emails to respective users of the application.
• Experience in developing scripts using Restful API models for the purposes of integrating workflows with AWS.
• Involve in Daily Meetings and Biweekly meetings with the business team and offshore team on current issues in Production and as well Releases.

Confidential

JAVA Developer

Responsibilities:

• Worked with technologies like Core Java, J2EE, Hibernate and Oracle.
• Created Framework for Integration Testing (FIT) based test cases for integration testing.
• Tested application functions like handling inputs, processing data, and interaction with databas
• Implemented the Struts frame work with MVC architecture.
• Created new JSP's for the front-end using HTML, Java Script, JQuery and Ajax.
• Developing JSP pages and configuring the module in the application.
• Developed the presentation layer using JSP, HTML, CSS and client-side validations using JavaScript.
• Involved in designing, creating, reviewing Technical Design Documents.
• Developed DAOs (Data Access Object) using Hibernate as ORM to interact with DBMS - Oracle.
• Applied J2EE design patterns like Business Delegate, DAO, Singleton etc.
• Deployed and tested the application using Tomcat web server.
• Involved in coding, code reviews, JUnit testing, Prepared and executed Unit Test Cases.
• JBOSS for application deployment and MySQL for database
• Worked with QA team in preparation and review of test cases.
• Identified bugs in the migrated application by running test cases and using Eclipse IDE.
• Provided Hibernate configuration file and mapping files, also involved in the integration of Struts with Hibernate libraries.
• Analyzed, created and proposed remediation measures to fix the bugs in the application.
• Used log4j for logging monitoring errors and exceptions across the application.
• Analyzed database table relationships to understand legacy application.
• Coordinated with Database Administrators to analyze and optimize the application load on database.
• Identified, analyzed, and re-mediated performance issues in application.