SUMMARY

• 7 years of professional IT experience including 2 years of experience on Big Data, Hadoop Development and Ecosystem Analytics in Banking, Healthcare, Insurance and Tele-Communication sectors.
• Good understanding of Hadoop Architecture and underlying framework including Storage Management.
• Well versed in installation, configuration, supporting and managing of Big Data and underlying infrastructure of Hadoop Cluster.
• Strong knowledge of using Pig/Hive for processing and analyzing large volume of data.
• Expert in creating Pig and Hive UDFs using Java in order to analyze the data efficiently.
• Expert in using Sqoop for fetching data from different systems to analyze in HDFS, and again putting it back to the previous system for further processing.
• Knowledge of creating Map Reduce codes in Java as per the business requirements.
• Have technical exposure on Cassandra CLI creating key spaces, column families and analyzing fetched data.
• Worked with Big Data distributions Cloudera CDH 3 and 4 . Also have knowledge of other distributions IBM BigInfoSights.
• Worked in ETL tools Talend to simplify Map Reduce jobs from the front end
• Have knowledge of Pentaho on data integration for executing ETL jobs in and out of Big Data environments.
• Experienced in creating and analyzing Software Requirement Specifications SRS and Functional Specification Document FSD . Strong knowledge of Software Development Life Cycle SDLC .
• Extensive knowledge in using SQL Queries for backend database analysis.
• Extensive knowledge in creating PL/SQL stored Procedures, packages, functions, cursors against Oracle 9i, 10g, 11g , and MySQL server.
• Experienced in preparing and executing Unit Test Plan and Unit Test Cases after software development.
• Expertise in Defect Management and Defect Tracking to do Performance Tuning for delivering utmost Quality product.
• Experience using middleware architecture using Sun Java technologies like J2EE, JSP, Servlets, and application servers Web Sphere and Web logic.
• Excellent Java development skills using J2EE, J2SE, JDBC, Java Script, Servlets, JSP, JQuery, JUnit.
• Excellent Java development skills using frameworks Struts, Hibernate, Spring MVC and AJAX.
• Worked in Windows, Unix/Linux Platform with different technologies such as Big Data, Java, XML, HTML, SQL, PL/SQL, and Shell Scripting.
• Experience in Scrum, Agile and Waterfall models.
• Good communication Skills, committed, result oriented, hard working with a quest to learn new technologies.
• Experienced to work with multi-cultural environment with a team and also individually as per the project requirement.

TECHNICAL SKILLS

PROFESSIONAL EXPERIENCE

Confidential

Title: Hadoop Developer

Responsibilities:

• Responsible for preparing and analyzing technical and functional specs, development and maintenance of code.
• Developed multiple Map Reduce jobs in Java for data cleaning and pre-processing.
• Reviewed large data sets by running Hive Queries and Pig Scripts.
• Developed numerable Pig batch programs for both implementation, and optimization needs.
• Used Pig Latin and Hive HQL to work on unmodified data and produced reports for client's analytic purposes for large data analysis.
• Involved in design and implementation of Hadoop Framework to store and analyze large collections of documents.
• Used HBase in accordance with Hive/Pig as per the requirement.
• Associated with creating Hive Tables, and loading and analyzing data using Hive Queries.
• Involved in running Hadoop jobs for processing millions of records of text data.
• Worked with application teams to install operating system, Hadoop updates, patches, version upgrades as needed.
• Involved in loading data from Linux file system to HDFS.
• Involved in creating tables, partitioning, bucketing of tables.
• Extracted files from Cassandra through Sqoop and placed in HDFS and processed.
• Also used Sqoop to transfer data between RDBMS and HDFS.
• Created and maintained Technical documentation for launching Hadoop Clusters and for executing Hive Queries and Pig Scripts.
• Experience in running Hadoop streaming jobs to process terabytes of XML format data.
• Transform large sets of structured, semi structured and unstructured data.
• Ensuring adherence to guidelines and standards in project process.
• Facilitating Testing in different environments.

Environment: Hadoop, HDFS, HBase, Pig, Hive, Map Reduce, Cassandra, Sqoop, Flume, Java, XML, SQL, Linux.

Confidential

Title: Hadoop Developer

Responsibilities:

• Developer in Big Data team, worked with Hadoop, and its ecosystem.
• Installed and configured Hadoop, Map Reduce, HDFS.
• Used Hive QL to do analysis on the data and identify different correlations.
• Developed multiple Map Reduce jobs in Java for data cleaning and preprocessing.
• Installed and configured Pig and also written Pig Latin scripts.
• Wrote Map Reduce job using Pig Latin.
• Great understanding of REST architecture style and its application to well performing web sites for global usage.
• Developed and maintained Hive QL, Pig Latin Scripts, and Map Reduce.
• Worked on the RDBMS system using PL/SQL to create packages, procedures, functions, triggers as per the business requirements.
• Involved in ETL, Data Integration and Migration.
• Worked on Talend to run ETL jobs on the data in HDFS.
• Imported data using Sqoop to load data from Oracle to HDFS on a regular basis.
• Developing scripts and batch jobs to schedule various Hadoop Programs.
• Have written Hive Queries for data analysis to meet the 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.
• Experienced in defining job flows.
• Experience with NoSQL database HBase.
• Hybrid implementation using Oracle.
• Wrote and modified stored procedures to load and modifying of data according to business rule changes.
• Involved in creating Hive Tables, loading the data and writing Hive Queries that will run internally in a map reduce way.
• Developed a custom file system plugin for Hadoop to access files on data platform.
• The custom file system plugin allows Hadoop Map Reduce programs, HBase, Pig, and Hive to access files directly.
• Extracted feeds from social media sites such as Facebook, Twitter using Python scripts.
• Organized and benchmarked Hadoop/HBase Clusters for internal use.

Environment: Hadoop, HDFS, HBase, Pig, Hive, MapReduce, Sqoop, Flume, ETL, REST, Java, Python, PL/SQL, Oracle 11g, Unix/Linux.

Confidential

Title: Java Developer

Responsibilities:

• Developed an end to end vertical slice for a JEE based application using popular frameworks Spring, Hibernate, JSF, Facelets, XHTML, Maven2, and AJAX by applying OO Design Concepts, JEE, and GoF Design Patterns.
• Designed the logical and physical data model, generated DDL scripts, and wrote DML scripts for Oracle 9i database.
• Tuned SQL statements, Hibernate Mapping, and Web Sphere application server to improve performance, and consequently met the SLAs.
• Collected business requirements and wrote functional specifications and detailed design documents.
• Detected and fixed transactional issues due to wrong exception handling and concurrency issues because of unsynchronized block of code.
• Employed MVC Struts framework for application design.
• Assisted in designing, building, and maintaining database to analyze life cycle of checking and debit transactions.
• Used Web Sphere to develop JAX-RPC web services.
• Developed Unit Test Cases, and used JUNIT for Unit Testing of the application.
• Involved in the design team for designing the Java Process Flow architecture.
• Used Web Sphere to develop JAX-RPC web services.
• Worked with QA, Business and Architect to solve various Defects in to meet deadlines.

Environment: Spring, Hibernate, Struts MVC, AJAX, Web Sphere, Maven2, Java, Java Script, JUnit, XHTML, HTML, DB2, SQL, UML, Oracle, Eclipse, Windows.

Confidential

Title: Java/J2EE Developer

Responsibilities:

• Implemented services using Core Java.
• Handling of design reviews and technical reviews with other project stake holders.
• Developed analysis level documentation such as Use Case, Business Domain Model, Activity, Sequence and Class Diagrams.
• Effective role in the team by interacting with welfare business analyst/program specialists and transformed business requirements into System Requirements.
• Developed and deployed UI layer logics of sites using JSP.
• Spring MVC is used for implementation of business model logic.
• Worked with Struts MVC objects like action Servlet, controllers, and validators, web application context, Handler Mapping, message resource bundles, and JNDI for look-up for J2EE components.
• Developed dynamic JSP pages with Struts.
• Employed built-in/custom interceptors, and validators of Struts.
• Developed the XML data object to generate the PDF documents, and reports.
• Employed Hibernate, DAO, and JDBC for data retrieval and medications from database.
• Messaging and interaction of web services is done using SOAP.
• Developed JUnit test cases for Unit Test cases and as well as system, and user test scenarios

Environment: Struts, Hibernate, Spring MVC, SOAP, WSDL, Web Logic, Java, JDBC, Java Script, Servlets, JSP, JUnit, XML, UML, Eclipse, Windows.

Confidential

Title: Java /J2EE Developer

Responsibilities:

• Involved in the Analysis, Design, Implementation, and Testing of the project.
• Implemented the presentation layer with HTML, XHTML and Java Script.
• Developed web components using JSP, Servlets and JDBC.
• Designed Tables and Indexes.
• Have written SQL Queries and stored procedures.
• Involved in Fixing Bugs and Unit Testing with test cases using JUnit.
• Actively involved in the System Testing.
• Involved in implementing service layer using Spring IOC module.
• Used GitHub as a code repository.
• Used Gradle as a build tool.
• Developed the Installation, Customer guide and Configuration document which were delivered to the customer along with the product.

Environment: Spring, Java, JDBC, Java Script, Servlets, JSP, XHTML, HTML, SQL, JUnit, UML, MySQl, Eclipse IDE, Windows XP.

Confidential

Title: Junior Java Developer

Responsibilities:

• Involved in designing the Project Structure, System Design and every phase in the project.
• Responsible for developing platform related logic and resource classes, controller classes to access the domain and service classes.
• Involved in Technical Discussions, Design, and Workflow.
• Participate in the Requirement Gathering and Analysis.
• Employed JAXB to unmarshall XML into Java Objects.
• Developed Unit Testing cases using JUnit Framework.
• Implemented the data access using Hibernate and wrote the domain classes to generate the Database Tables.
• Involved in implementation of view pages based on XML attributes using normal Java classes.
• Involved in integration of App Builder and UI modules with the platform.

Environment: Hibernate, Java, JAXB, JUnit, XML, UML, Oracle11g, Eclipse, Windows XP.