PROFESSIONAL EXPERIENCE

• SUN Certified Java Programmer with 11 years of IT experience covering teh complete software development life cycle for different cases by designing, developing, integrating and testing applications in J2EE Environment.
• Over 3+ years of experience in Hadoop ecosystem's implementation, maintenance and Big Data analysis operations.
• Strong knowledge of Hadoop Architecture and various components such as HDFS, Job Tracker, Task Tracker, Name Node, Data Node and MapReduce concepts.
• Experience in using various Hadoop infrastructures such as Map Reduce, Pig, Hive, Zookeeper, Sqoop, Oozie for data storage and analysis.
• Have knowledge on IBM SPSS analytical tool.
• Experience in using NOSQL DB like Hbase.
• Experiences in analyzing data using Hive QL and custom Map Reduce programs in Java.
• Experiences in writing UDF,UDAF in Hive to analyze data.
• Experience in Collecting log data from various sources and integrating into HDFS using SQOOP and developing custom UDFs for Hive.
• Experience in handling/processing GB of data per day.
• Experience in designing both time driven and data driven automated workflows using Oozie.
• Experience in designing low latency and high throughput application using HBASE,
• Having good understanding of HBASE rowkey, columnfamiliy, storage structure.
• Strong experience in cutting edge technologies like JSP, Servlet, EJB, Struts, Spring, iBatis, ext - js and Oracle, with deployment using jBoss Application/Tomcat server/Web Sphere.
• Experience of developing applications using J2EE Design patterns (ex: MVC, Value Object, Object (DAO), Data Transfer Object (DTO), Business Delegate, Session Facade, Service Locator etc.).
• Extensively used JDBC Statement, Prepared Statement, Callable Statement and Result Set interfaces while providing database interaction with teh RDBMS backend.
• Good exposure to Struts, Spring, i-Batis, Ext-js framework and Windows/Linux operating system.
• Extensively used tools such as PL/SQL developer, TOAD for programming of SQL, PL/SQL. Experience with databases including Oracle, SQL Server
• Hands-on experience in IDE Tools: Eclipse, Intellij Idea, RAD.
• Experience in Version management tools like CVS.
• Proven track record of multiple project implementations as Individual Contributor, Senior Software Engineer and Onsite Coordinator.
• Active team player and a self-starter, capable of working independently and motivate a team of professionals
• Onsite for UAT in countries Philippines, Malaysia, Indonesia and for Product Training in Switzerland.

TECHNICAL SKILLS:

Technology/Programming Languages: Java - J2EETechnology/Language Details JSP, Servlet, JDBC, EJB, Javascript, XML, HTML, PL/SQL

Frameworks: Struts, Spring (IoC, DAO), i-Batis, ext-js

Databases: Oracle 9i, SQL Server

Operating Systems: Windows, Linux, Solaris

Web/Application Servers: Tomcat/jBoss/Web Sphere

Tools/Packages: Eclipse/IntelliJ IDEA IDEA, CVS/VSS (version management), JUnit (Testing tool, TOAD, Bugzilla

Domain/Functional Area: e-Learning, Telecom, Finance

Hadoop Ecosystem: HDFS, Hive, SQOOP, Pig. NOSQL HBase, OOZIE

Analytical Tool: IBM SPSS

PROFESSIONAL EXPERIENCE:

Confidential

HADOOP Developer

Responsibilities:

• Involved in ETL, Data Integration and Migration. Imported data using Sqoop to load data from Oracle to HDFS on regular basis.
• Developing Scripts and Batch Job to schedule various Hadoop Program.
• Written Hive queries for data analysis to meet teh business requirements.
• Creating Hive tables and working on them using Hive QL. Importing and exporting data into HDFS from Oracle Database and vice versa using Sqoop.
• Implemented test scripts to support test driven development and continuous integration.
• Responsible to manage data coming from different sources.
• Prepared Hive scripts to covert TD SP to HQL similar
• Prepared Autosys/oozie jobs and dependencies.
• Prepared Validation HQL to compare teh data.

Confidential

Senior Java/HADOOP SR Developer

Responsibilities:

• Developed and configured Hadoop Mapreduce, HDFS, Developed multiple MapReduce jobs in java for data cleaning and preprocessing.
• Have solid understanding of REST architecture style and its application to well performing web sites for global usage.
• Involved in ETL, Data Integration and Migration. Imported data using Sqoop to load data from Oracle to HDFS on regular basis.
• Developing Scripts and Batch Job to schedule various Hadoop Program.
• Written Hive queries for data analysis to meet teh business requirements.
• Creating Hive tables and working on them using Hive QL. Importing and exporting data into HDFS from Oracle Database and vice versa using Sqoop.
• Implemented test scripts to support test driven development and continuous integration.
• Responsible to manage data coming from different sources.
• Load and transform large sets of structured, semi structured and unstructured data.
• Experience in managing and reviewing Hadoop log files.
• Worked on Hive for exposing data for further analysis and for generating transforming files from different analytical formats to text files.
• Managing and scheduling Jobs on a Hadoop cluster.
• Installed and configured Hadoop MapReduce, HDFS, Developed multiple MapReduce jobs in java for data cleaning and preprocessing.
• Importing and exporting data into HDFS and Hive using Sqoop.
• Involved in creating Hive tables, loading with data and writing hive queries, which will run internally in map, reduce way.
• Written Hive queries for data analysis to meet teh business requirements.
• Involved in writing Hive scripts to extract, transform and load teh data into Database.
• Implemented low latency, high throughput application using NOSQL like HBASE. This involves retrieving specific duration data from millions of rows in milliseconds, design ROWKEY/table structure to support low latency.
• Implemented MAPPER to load and process teh data into HBASE storage, integrated with JAVA application to fetch data from HBASE storage.
• Used JIRA for bug tracking.
• Used CVS for version control.
• Involved in all teh phases of SDLC including Requirements Collection, Design & Analysis of teh Customer Specifications, Development and Customization of teh Application.
• Used JAVA, spring framework for teh application.
• Solution mapping, designing and effort estimation.
• Used Log4J2 for generating teh logs.
• Maintaining teh document's like Technical Design, release notes etc.
• Writing code in fix for production/UAT issues.
• Writing queries, functions, and procedures in PL/SQL.
• Preparing JUnit Test Cases, Unit testing, Integrated testing.
• Version control and patch preparation.

Confidential

Senior Java Developer

Responsibilities:

• Involved in all teh phases of SDLC including Requirements Collection, Design & Analysis of teh Customer Specifications, Development and Customization of teh Application.
• Used JAVA, Struts, i-Batis, Spring framework for teh application.
• Use of teh Spring Framework with Hibernate, i-Batis as ORM for teh application based on teh MVC design/pattern.
• Solution mapping, designing and effort estimation.
• Used Log4J for generating teh logs.
• Maintaining teh document's like Technical Design, release notes etc.
• Writing code in fix for production/UAT issues.
• Writing queries, functions, and procedures in PL/SQL.
• Preparing JUnit Test Cases, Unit testing, Integrated testing.
• Version control and patch preparation.

Confidential

Senior Java Developer

Responsibilities:

• Involved in all teh phases of SDLC including Requirements Collection, Design & Analysis of teh Customer Specifications, Development and Customization of teh Application.
• Used JAVA, Struts, Spring framework for teh application.
• Solution mapping, designing and effort estimation.
• Used Log4J for generating teh logs.
• Maintaining teh document's like Technical Design, release notes etc.
• Writing code in fix for production/UAT issues.
• Writing queries, functions, and procedures in PL/SQL.
• Preparing JUnit Test Cases, Unit testing, Integrated testing.
• Version control and patch preparation.

Confidential

Senior Developer, Module Lead (Java)

Responsibilities:

• Study, understand teh functional specifications and perform requirement gap analysis.
• Involved in analysis of teh specifications from teh client and actively participated in documentation.
• Analyzed and designed a scalable system which includes using, Object oriented concepts, OOAD and teh various J2EE design patterns. Developed JSP pages using Struts tag libraries.
• Solution mapping, designing and effort estimation.
• Maintaining teh document's like Technical Design, release notes etc.
• Writing code in JSP, Java and EJB and deployment in jBoss.
• Writing queries, functions, and procedures in PL/SQL.
• Customize existing report generation process.
• Preparing Test Cases, Unit testing, Integrated testing.
• Version control and patch preparation.

Confidential

Java Developer

Responsibilities:

• Solution mapping, designing and effort estimation.
• Writing code in JSP, Java using struts framework and deployment in Tomcat Server.
• Writing queries, function, and procedures in PL/SQL when required.
• Preparing Test Cases, Unit testing, Integrated testing.

Confidential

Java Developer

Responsibilities:

• Solution mapping, designing and effort estimation.
• Writing code in JSP, Java using struts framework in Tomcat.
• Writing queries, function, and procedures in PL/SQL when required.
• Preparing Test Cases, Unit testing, Integrated testing.

Confidential

Java Developer

Responsibilities:

• Writing Java code as per requirement.
• Preparing test cases.