SUMMARY:

• 13 years of experience in development and Technical leadership for creating high quality and scalable enterprise software systems using Java/J2EE technologies,
• Very strong experience in micro service architecture design and development with fully stateless system
• Experience with AWS Cloud - EC2(Beanstalk), Analytics and S3 services for Elastic Search index and storing video/image file.
• Very strong experience in building micro service based projects from scratch using spring boot, cloud etc.
• Extensive experience in software development using agile scrum, Kanban process with agility development.
• Experience in CI/CD using Jenkin and other DevOps tools.
• Expertise in Test driven development and BDT as well, written lot of test case on - TDD/BDT (Junit, mockito and spock)
• Experience in peer programming environment.
• Effectively used features of Java 8(stream, lambda, date and time), Concurrency framework, Java Executors, JCF and multi-threading.
• Developed SOAP based web service using spring web service module.
• Developed user interface or front end screen using Backbone JS, Angular 2, html, CSS, JavaScript, Typescript and JQuery.
• Have written parallel task java code using Executor framework to make ETL kind of works.
• Directly worked with product owners and Architect team to get business and architectural details during sprint planning.
• Designed complex business entity/objects using Object Oriented Analysis & Design (OOAD).
• Expertise in utilizing multiple design patterns and principles.
• Expertise in design and development of database tables, indexing, relationship, SQL and PL/SQL.
• Utilized Devops products such as App Dynamics.
• Experience in using rally/JIRA - story tracking system.
• Involved in refactoring on existing codes base and on daily development time as well.
• Experience in Continuous integration environment such as Jenkins, implemented few plug-in with Jenkins.
• In depth understanding on multiple flavor of NOSQL concepts especially document based system such as MongoDB and Cassandra

PROFESSIONAL EXPERIENCE:

Confidential, Minneapolis, MN

Lead Java Developer

Responsibilities:

• Working as Senior Developer cum Technical Lead to build REST based microservices system from scratch using spring boot, security, cloud, Netflix stack, java8 and groovy with fully stateless system.
• Involve in architectural meeting with product senior architects and work with junior development team to collaborate individual ideas during sprint planning or whenever required.
• Conduct team meeting and code review with team members.
• Utilize Netflix Eureka Server for service registration and discovery purpose.
• Utilize Netflix Hystrix for fault tolerance purpose and zuul for gateway purpose.
• Write spring mvc test for Restcontroller and spock/mockito for service and repository components using Java8 and Groovy programming language
• Do involve in code review meeting with junior developers and provide technical solutions.
• Develop user interface /UI using Angular 2, Typescript, html and CSS.
• Write Gradle build script using Groovy language
• Implemented JSON web token security for each microservice using spring security module.
• Develop Elastic Index API service to index/retrieve data from elastic search instance which is in AWS cloud using Jest client API.
• Write simple/complex elastic Search (NOSQL search engine) query to provide data to search box.
• Writing JPQL queries.
• Write the java API to store multimedia files in to AWS cloud S3 storage using AWS SDK.
• Make sure exception handled in proper way and communicated to REST caller with proper http status code and message.
• Writing Junit, mockito and spock, and encourage/help others developers to write more scenario with good amount of code coverage.
• Use AWS cloud Analytics Elastic search index instance to index/retrieve employee and program information’s.
• Use AWS cloud S3 to store participant video/image and other files.
• Used AWS Beanstalk service as an application running environment
• Work with Jenkin to monitor build and schedule jobs.
• Responsible to work with co-developer and do code reviews frequently and make sure all other code as well quality.
• Help junior developers in terms of technically or functionally to meet on time delivery.
• Interact with product owner and architect team to understand business and architectural design during sprint plan or whenever required.
• Create rest controller, service and JPA objects by following REST and SOLID standards and do code review for junior developer’s artifacts as well.
• Coordinate with QA resource and verify all acceptance tested before move on to next environment.
• Co-operate with Devops team to make sure features goes smooth in to production.
• 100% make sure following TDD process, and do create many test scenarios.
• Do code review with team members. created devops related jobs such as Jenkin jobs to automate build and unit testing and artifice delivery.

Environment: Java 8, Groovy, Spring boot, spring (web, transaction, aop, orm, security), Spring REST end points, Hibernate- JPA, JSON, Gradle, junit, mockito, spock, EHCache, JMS and Tomcat, Angular 2, Typescript, Active MQ, Elastic Search (at AWS EC2), AWS S3 and Netflix stack.

Confidential, Moline, IL

Sr. Java Developer

Responsibilities:

• Develop microservice REST API using spring and REST Easy frameworks for different services such field management service, field data management service, organization management service. etc.
• Develop socket program to receive message from provider and build JMS message then put in to IBM MQ system.
• Developing SOAP web service for device management system.
• Process SOAP message which received from MQ system for order management synchronization.
• Developed user interface using backbones, html, CSS, JavaScript and JQuery
• Responsible for analysis, development and maintenance of current programs including performance, diagnosis and troubleshooting of problem programs.
• Gather and analyze business and functional requirements, and translate requirements into technical specifications for robust, scalable, supportable solutions that work well within the overall system architecture.
• Tuned SQL statements, hibernate mapping, and WebSphere application server to improve performance, and consequently met the SLAs.
• Using Hibernate as the ORM tool to be able to integrate the software with the Oracle database back end.
• JPA specifications and Hibernate as a persistence provider.
• JAXB to convert the XML request Message into Java Objects and response into XML.
• TortoiseHG Mercurial 2.4.1 to check-in / check-out the code in central repository. Spring MVC for Controller Component and request mapping.
• Using spring for Component scan, AOP Advice for service layer.
• Logback used for Logger information.
• Using RFHUtil 7 to send the Message to Device Management for Testing.
• Using HSQLDB as In Memory database for integration and unit testing.
• Using JUnit 4.11 for writing development test cases.
• Using Maven for building and applications.
• Using IAF Deployment for Deploying the Project EAR on DEV, QUAL, and CERT Environment.
• Using DB2 Database and Toad as an editor for Database queries.
• Using AppDynamics for performance testing of JVM’S.
• Used Toad 5.1 as editor for DB2.
• Implemented Jenkin plugins such as Fitnesse.

Environment: Java 1.6, Spring 3.2, JPA 2X, JAX-RS, JAX-WS, XML, JMS, AspectJ, Json, Maven, Jenkins, IntelliJ, Mercurial version control, IRAD editor, Junit, MockIto, Selenium, fitness test, SMTP, AppDynamics, Rally story tracking, sonar and cobertura code coverage, GitHub, memcache NOSQL, extreme Scale jodatime, multi-threading, concurrent operations and site minder.

Confidential, New York City, NY

Module Lead Developer

Responsibilities:

• Design, develop, code, test in agile environment.
• Involved in High Level Design.
• Analysis and resolution of issues identified during internal testing and issues found by customers. Prioritizing the issues and passing information to the offshore team for fixing the issues.
• Involved Onshore/Offshore team coordination, planning, knowledge transfer both technical and business oriented.
• Coding the common utility java classes
• Responsible for design documentations, code reviews, performance improvements and presentation.
• Troubleshooting and technical guidance to the team

Environment: Java 6, SOAP web service (IBM WebSphere provider), wsdl, XML, XSD, Java Executor framework, Oracle 10G, PL/SQL, UNIX scripting.