SUMMARY

• Senior Java/J2EE/Big Data Developer wif 8+ years professional of experience in software development, Analysis, Design and Development of Software Systems.
• 3 years experience in design and implementation of large - scale Big data use cases.(Using Hadoop ecosystem, HDFS, Map Reduce, Hive, Pig, Yarn, Sqoop, and NoSQL Databases HBase) and 6 years of experience in Software development on Java & Spring frame work(Spring IoC/core, Spring DAO support, Spring ORM, Spring AOP, Spring Security, Spring MVC, and Spring Integration).
• Expert knowledge over J2EE Design Patterns like MVC Architecture, Front Controller, Session Facade, Business Delegate and Data Access Object for building J2EE Applications.
• Designed & developed several multi-tier Web based, Client-Server and Multithread applications using Object Oriented Analysis and Design concepts and Service Oriented Architecture (SOA) mostly in cross platform environment.
• Excellent working knowledge of popular frameworks like Struts, Hibernate, and Spring MVC.
• Developed core modules in large cross-platform applications using JAVA, J2EE, Spring, Struts, Hibernate, JAX-WS (SOAP)/JAX-RS (REST) Web Services JMS.
• Good understanding of HDFS Designs, Daemons, federation and HDFS high availability (HA).
• Excellent interpersonal and communication skills, creative, research-minded, technically competent and result-oriented wif problem solving and leadership skills.
• Expert in Database, RDBMS concepts and using MS SQL Server and Oracle 10g.
• Expertise in working wif web development technologies such as HTML, CSS, and JavaScript.
• Experience in developing Hive and Pig scripts.
• Extensive knowledge of creating different Hive tables wif different file compressions formats.
• Good experience using Apache SPARK.
• Experience managing Cloudera distribution of Hadoop (Cloudera Manager).
• Excellent understanding of NoSQL databases like HBase.
• Extensive working knowledge in setting up and running Clusters, monitoring, Data analytics, Sentiment analysis, Predictive analysis, Data presentation wif big data world.
• Hands on experience working on structured, unstructured data wif various file formats such as xml files, Json files, sequence files using Map Reduce programs.
• Extensive experience wif wiring SQL queries using HiveQL to perform analytics on structured data.
• Expertise in Data load management, importing & exporting data using SQOOP.
• Performed different PIG operations, joining operations and transformations on data to join, clean, aggregate and analyze data.
• Expertise in working wif different methodologies like Waterfall and Agile.

TECHNICAL SKILLS

Languages: Java

Big Data Skills: Hadoop, Map Reduce, Hive, Pig, Sqoop, Oozie, Spark

RDBMS: MS SQL server 2000/2005, DB2, Oracle 8.x/9i/10g/11i

No SQL: HBase

Web Technology: JSP, HTML, XML & CSS

Scripting Language: Java Script, JSON, Angular JS

Web/Application Server: Tomcat, Web Sphere, Web Logic, JBoss

Frameworks: Struts, Spring, Hibernate, Log4j

CM Tools: Confidential Clear Case, Confidential Rational Team Concert (Think client & Web version), Win CVS, SVN, GIT

Defect Tracking Tools: Confidential TSRM, Confidential Rational Team Concert, Confidential Rational Quality Manager

Build Tools: Apache Ant, Maven

Testing Tools: JUnit

IDE & GUI: Eclipse, Confidential RAD, Confidential RSA & Net Beans

Operating System: Windows 7, Windows 95/98/ME/NT/XP, Unix & Linux

UML Modeling Tools: Star UML

PROFESSIONAL EXPERIENCE

Confidential, Raleigh, NC

Sr.Java/BigData Developer

Responsibilities:

• Involved in developing teh Controller, Service and DAO layers of Spring Framework for developing dashboard for SPST project.
• Analysis, Designed and implemented application using Spring MVC, Spring IOC, Spring Annotations, Spring AOP, Spring Transactions, Hibernate, Oracle.
• Created centralized spring controller to receive request and response back on spring MVC for role based access.
• Developed seasonal work flow Spring IOC components to teh provide promotions and other offers to teh customer as per business rules.
• Written Hibernate components and conducting peer code views.
• Installation & configuration of a Hadoop cluster along wif Hive.
• Developed Map Reduce application using Hadoop map reduce programming, a framework for processing.
• Large data sets in parallel across teh Hadoop cluster for pre-processing.
• Responsible for writing Hive Queries for analyzing data in Hive warehouse using Hive Query Language (HQL).
• Developing Hive User Defined Functions in java, compiling them into jars and adding them to teh HDFS and executing them wif Hive Queries.
• Experienced in managing and reviewing Hadoop log files.
• Responsible to manage data coming from different sources and Assisted in monitoring teh Hadoop cluster
• Consolidate all defects, report it to PM/Leads for prompt fixes by development teams and drive it to closure.
• Installed Hadoop ecosystems (Hive, Pig, Sqoop, HBase, Oozie) on top of Hadoop cluster
• Importing data from SQL to HDFS & Hive for analytical purpose.
• Attending Business requirement Meetings, UAT Support, Onsite- Offshore Co-ordination, and Work Assignment.

Confidential, Bentonville, AR

Sr.BigData Developer

Environment: HDFS, Hive, Map Reduce, Spark-SQL, Sqoop.

Responsibilities:

• Developed Spark code using Scala and Spark-SQL/Streaming for faster testing and processing of data.
• Import teh data from different sources like HDFS/HBase into Spark RDD Developed a data pipeline using Kafka and Storm to store data into HDFS. Performed real time analysis on teh incoming data.
• Exploring wif teh Spark improving teh performance and optimization of teh existing algorithms in Hadoop using Spark Context, Spark-SQL and Spark YARN.
• Performance optimization dealing wif large datasets using Partitions, Spark in Memory capabilities, Broadcasts in Spark, Effective & efficient Joins, Transformations and other heavy lifting during ingestion process itself.
• Used Spark API over Horton Works Hadoop YARN to perform analytics on data in Hive.
• Developed Map Reduce jobs to convert data files into Parquet file format.
• Developed business specific Custom UDF's in Hive, Pig.
• Optimized Map Reduce code, pig scripts and performance tuning and analysis.
• Involvement in design, development and testing phases of Software Development Life Cycle.
• Performed Hadoop installation, updates, patches and version upgrades when required.

Confidential

Sr. Java Developer

Environment: Core Java, J2ee, JSP, Struts, Web services, Altova XML Spy, WAS 6.0, RADApache ANT, Oracle SQL Developer, RTC 3.0

Responsibilities:

• Implementing GUI as per requirement.
• Involved to create teh Functional Design and Technical Design.
• Involved in coding Business logic, Persist data wif struts and JDBC, Unit Testing and Integration Testing.
• Used and worked wif SOAP Web services.
• Involved Re-Usable Components which can be used in all modules.
• Involved in supporting UAT activities and Production issues, fixing bugs and Defect Tracking.
• Involved in creating XSD.
• Involved in debugging, troubleshooting and defect fixing
• Involved in testing of teh Web services and integrating wif external vendors and internal clients.
• Implemented test cases for verification of Web services and Used SOAP UI for testing.
• Assist developers in teh technical design phase, construction and unit testing phase.
• Analyzing and understanding teh architectural requirements.
• Proposing a new design solution which exceeds teh client expectations.
• Involved in conducting peer code Reviews and Functional documents.
• Strong experience wif JUnit in performing unit test and determining teh application functionality. Involved in Unit Test case authoring.
• Involved troubleshooting, and Incident diagnosis and problem resolution. Expert in Root Cause Analysis, overall systems testing and migration of platforms and applications to production.

Confidential

Sr. Java Developer

Environment: Java, HTML, JavaScript, JSP, Hibernate, EDS Tool, Tomcat, MySQL, CVS, ANT

Responsibilities:

• Involved in implementing GUI as per requirement.
• Involved in LLD, Functional Design and Technical Design.
• Involved create teh web pages using Java server pages.
• Involved on UI Design and Development using HTML, CSS, Java Script
• Involved Controller logic in Servlets.
• Implemented client side validations using Java Script.
• Implemented Data Access Objects using Hibernate Framework.
• Code Reviewed for self and for team members to ensure teh deliverables reach teh clients wif good quality
• Involved in writing teh ANT scripts to build teh application.
• Involved in using Log4J to create log files to debug.
• Used CVS/ Win CVS for version control.
• Preparing Unit Test Cases.

Confidential

Sr. Java developer

Environment: Core Java, HTML, Java script, JSP, Servlets, JDBC, RTC, My SQL 5.5, Tomcat

Responsibilities:

• Involved in implementing GUI as per requirement.
• Involved in LLD, Functional Design and Technical Design.
• Involved create teh web pages using Java server pages.
• Involved Controller logic in Servlets.
• Involved in Debugging, unit testing and writing unit test cases.
• Involved in creating teh various user interfaces (UI) using JSP, HTML, JavaScript, and CSS
• Involved in Code Reviews based on standard.
• Used CSS basics, CSS 3 media queries, CSS 3 pseudo classes.
• Implemented User Interface and integrated wif backend code, Node.JS as server side technology.
• Worked on Responsive Web Design to make website Responsive for Desktop, mobile and Tablets using Bootstrap and Media Queries.
• Extracted data in UI for different clients using JSON format.
• Implemented client-side validations using JavaScript.
• Implemented JDBC components.
• Preparing Unit Test Cases

Confidential

Java Developer

Environment: Java, JSON, Struts, Hibernate, Web Sphere, RSA, ClearCase, DB2, JUnit, RQM

Responsibilities:

• Responsible for leading teh project in various phases including design, development and Unit testing of teh application modules and management of a team.
• Worked as a Functional Group Leader for implementing teh functional use cases.
• Develop teh Re-Usable Components which can be used in all modules.
• Develop Proof of Concepts for ACG framework and provide technical solutions.
• Developed UI by using JSON.
• Implementing teh Action Classes using Struts.
• Written Hibernate components and conducting peer code views.
• Requirement analysis from teh business users and from onshore counter partner.
• Involve in enhancements, debugging, troubleshooting and defect fixing.
• Involve in Unit Testing, White Box Testing and Integration Testing of teh application.
• Customizing and exploring new things on ACG framework
• Involved in assisting juniors.

Confidential

Java Developer

Environment: Java, XML, Spring, Hibernate, JMS, Web Services, EXTJS, Oracle, JBOSS 5.4

Responsibilities:

• Involved in Analysis, Effort estimation, Design & Development in teh part of Employee Audit, Email Reminders and Audit Rules and Workflow features enhancements.
• Involved in Analysis, Design and Development of Customization Frame Work enhancements such as, Allocation Verification on save, etc.
• Involved in debugging, troubleshooting and defect fixing.
• Involving in setting up and configuring teh development and deployment of teh application.
• Design & developed Customized Ext JS components for Application.
• Implementation of Spring Security for application, EXT Delegate / facade Data object controller, Domain locking, Exception handling using springs.