SUMMARY:

• Over 7 years of experience in the field of IT including four years of experience inHadoop ecosystem and good object oriented programming skills.
• Good knowledge ofHadoopArchitecture and various components such as HDFS, Job Tracker, Task Tracker, Data Node, Name Node and Map - Reduce concepts Responsible for writing Map Reduce programs.
• Knowledge of administrative tasks such as installingHadoopand its ecosystem components.
• Expertise with the tools inHadoopEcosystem including Pig, Hive, HDFS, Map Reduce, SQOOP, Kafka, Yarn, Oozie, and Zookeeper.Hadoop architecture and its components.
• Experience in tuning and troubleshooting performance issues inHadoopcluster.
• Experience in using Cloudera Manager for installation and management of single-node and multi-nodeHadoopcluster.
• Worked with Cassandra for non-relational data storage and retrieval on enterprise use cases.
• Extensive experience in using the MOM with Active MQ, Apache storm, Apache Spark & Kafka, Apache Solr, Maven and Zookeeper.
• Written Apache Spark streaming API on Big Data distributions in the active cluster environment.
• Administrator for Pig, Hive and HBase installing updates, patches and upgrades.
• Experience in importing and exporting data using SQOOP from HDFS to Relational Database Systems and vice-versa. .
• Experienced in managing Hadoop Cluster using Cloudera Manager Tool.
• Work experience with cloud infrastructure like Amazon Web Services (AWS).
• Worked on Service Oriented Architecture (SOA) such as Apache Axis web services which use SOAP.
• Proficient in programming with Java/J2EE and strong experience in technologies such as JSP Servlets, Struts, Spring, Hibernate, EJBs, MDBs, Session Beans, JDBC, Solr and JNDI.
• Efficient in packaging & deploying J2EE applications using ANT, Maven & Cruise Control on WebLogic, WebSphere & JBoss.
• Worked on the performance & load test related tools like JProfiler and JMeter.
• Extensive experience in developing the SOA middleware based out of Fuse ESB and Mule ESB.
• Expertise in n-tier and three-tier Client/Server development architecture and Distributed Computing Architecture.
• Experience in IP Management (IP Addressing, Sub-netting, Ethernet Bonding, Static IP).
• Excellent Java development skills using J2EE, J2SE, Servlets, JSP, JDBC.
• Analytical thinker that consistently resolves on-going issues or defects, often called upon to consult on problems as well a fast learner.

TECHNICAL SKILLS:

Hadoop/Big Data: HDFS, HBase, MapReduce, YARN, Hive, Pig, Sqoop, Flume, Oozie, Kafka, MangoDB, Zookeeper.

Hadoop Distribution: Cloudera, Hortonworks, Apache

Database: Oracle 11g, MySQL, MS SQL Server, IBM DB2 NoSQL Databases HBase.

NoSQL Database: Cassandra, MongoDB, HBase.

Java Technologies: Java Servlets, JMS, JUnit.

Programming Languages: C, C++, Java, XML, Unix Shell Scripting, SQL, PLSQL.

IDE/Tools: Eclipse, Net Beans, Oracle.

J2EE Technologies: JSP, JDBC, JNDI, Servlets, Hibernate.

Web Technologies: HTML, DHTML, XML, SOAP, Java Script, CSS.

Webservices: WebLogic, WebSphere, Apache Tomcat, JBoss.

Network Protocols: TCP/IP, UDP, HTTP, DNS, DHCP, FTP

Operating Systems: Windows 98/XP/Vista/7/8, UNIX, Linux.

PROFESSIONAL EXPERIENCE:

Senior Hadoop Developer

Confidential, San Francisco CA

Responsibilities:

• Developed data pipeline using Flume, SQOOP, Pig and Java map reduce to ingest customer behavioral data and financial histories into HDFS for analysis
• Involved in Sqoop, HDFS Put or Copy from Local to ingest data and Map Reduce jobs.
• Used Pig to do transformations, event joins, filter boot traffic and some pre-aggregations before storing the data onto HDFS.
• Involved in developing Pig UDFs for the needed functionality that is not out of the box available from Apache Pig.
• Expertise with the tools inHadoopEcosystem including Pig, Hive, HDFS, Map Reduce, SQOOP, Kafka, Yarn, Oozie, and Zookeeper.Hadoop architecture and its components.
• Extensive experience in using the MOM with Active MQ, Apache storm, Apache Spark & Kafka Maven and Zookeeper.
• Used Hive to analyze the partitioned and bucketed data and compute various metrics for reporting.
• Involved in developing Hive DDLs to create, alter and drop Hive tables and storm.
• Create scalable and high-performance web services for data tracking.
• Managed works including indexing data, tuning relevance, developing custom tokenizers and filters, adding functionality includes playlist, custom sorting and regionalization with Solr Search Engine.
• Involved in loading data from UNIX file system to HDFS. Installed and configured Hive and also written Hive UDFs and Cluster coordination services through Zoo Keeper.
• Involved in creating Hive tables, loading with data and writing hive queries which will run internally in map reduce way.
• Experienced in managing Hadoop Cluster using Cloudera Manager Tool.
• Involved in developing Hive UDFs for the needed functionality that is not out of the box available from Apache Hive.
• Involved in using HCATALOG to access Hive table metadata from Map Reduce or Pig code.
• Computed various metrics using Java Map Reduce to calculate metrics that define user experience,Revenue etc.
• Responsible for developing data pipeline using flume, Sqoop and pig to extract the data from weblogs and store in HDFS.
• Extracted and updated the data into Monod using Mongo import and export command line utility interface.
• Extracted and updated the data into Monod using Mongo import and export command line utility interface. Involved in using SQOOP for importing and exporting data into HDFS.
• Used Eclipse and ant to build the application. Proficient work experience with NOSQL, Monod databases also the HDFS data from Rows to Columns and Columns to Rows.
• Involved in developing Shell scripts to orchestrate execution of all other scripts (Pig, Hive, and Map Reduce) and move the data files within and outside of HDFS.

Environment: Hadoop, Map Reduce, Mongo, Yarn, Hive, Solr, Pig, HBase, Oozie, Sqoop, Flume, Oracle 11g, Core Java, Cloudera, HDFS, Eclipse.

Hadoop Developer

Confidential, Dallas TX

Responsibilities:

• Worked extensively in creating Map Reduce jobs to power data for search and aggregation.
• Designed a data warehouse using Hive.
• Involved in Analyzing system failures, identifying root causes, and recommended course of actions.
• Using Hive, Map-reduce, and loaded data into HDFS.
• Worked with systems engineering team to plan and deploy newHadoopenvironments and expand existingHadoopclusters.
• Monitored workload, job performance and capacity planning using Cloudera Manager.
• Worked extensively with SQOOP for importing metadata from Oracle.
• Worked with application teams to install operating system,Hadoopupdates, patches, version upgrades as required.
• Extensively used Pig for data cleansing.
• Created partitioned tables in Hive.
• Worked with business teams and created Hive queries for ad hoc access.
• Evaluated usage of Oozie for Workflow Orchestration.
• Mentored analyst and test team for writing Hive Queries.
• Experience in writing MapReduce programs with Java API to cleanse Structured and unstructured data.
• Experience in RDMS such as Oracle, Teradata
• Worked on loading the data from MySQL to HBase where necessary using Sqoop.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Gained very good business knowledge on claim processing, fraud suspect identification, appeals process etc.

Environment: Hadoop, MapReduce, HDFS, Hive, Pig, Sqoop, AWS, Java, Oozie, MySql.

J2EE Developer

Confidential, San Ramon, CA

Responsibilities:

• Actively participated in requirements gathering, analysis, design, and testing phases.
• Designed use case diagrams, class diagrams, and sequence diagrams as a part of Design Phase.
• Developed the entire application implementing MVC Architecture integrating JSF with Hibernate and Spring frameworks.
• Developed the Enterprise Java Beans (Stateless Session beans) to handle different transactions such as online funds transfer, bill payments to the service providers.
• Implemented Service Oriented Architecture (SOA) using JMS for sending and receiving messages while creating web services.
• Used ANT scripts to build the application and deployed on WebSphere Application Server.
• Developed XML documents and generated XSL files for Payment Transaction and Reserve Transaction systems.
• Developed Web Services for data transfer from client to server and vice versa using Apache Axis, SOAP and WSDL.
• Used JUnit Framework for the unit testing of all the java classes.
• Used DAO and JDBC for database access.
• Implemented various J2EE Design patterns like Singleton, Service Locator, DAO, and SOA.
• Worked on AJAX to develop an interactive Web Application and JavaScript for Data Validations.

Environment: J2EE, JDBC, Java 1.4, Servlets, JSP, Struts, Hibernate, Web services, SOAP, WSDL, Design Patterns, MVC, HTML, WebLogic 9.0, XML, JUnit, Oracle 10g, Web Sphere, My Eclipse.

Java/J2EE Developer

Confidential

Responsibilities:

• Involved in the analysis, design, and development and testing phases of Software Development Lifecycle (SDLC) using agile development methodology.
• Developed the application under J2EE architecture, developed Designed dynamic and browser compatible user interfaces using JSP, Custom Tags, HTML, CSS, and JavaScript.
• Actively participated in requirements gathering, analysis, design, and testing phases.
• Used EJBs (Session beans) to implement the business logic, JMS for communication for sending updates to various other applications and MDB for routing priority requests.
• Implemented Service Oriented Architecture (SOA) using JMS for sending and receiving messages while creating web services.
• All the Business logic in all the modules is written in core Java.
• Deployed & maintained the JSP, Servlets components on Web logic 8.0
• Developed Application Servers persistence layer using JDBC, SQL, and Hibernate.
• Used JDBC to connect the web applications to Data Bases.
• Designed and developed user interface using JSP, HTML and JavaScript.
• Validated the fields of user registration screen and login screen by writing JavaScript validations.
• Worked with field level engineers and teams to make more user-friendly. Performed testing for GUI and back end.
• Developed and utilized J2EE Services and JMS components for messaging communication in Web Logic.
• Configured development environment using Web logic application server for developers integration testing.

Environment: Java/J2EE, SQL, Oracle 10g, JSP 2.0, EJB,SOA, AJAX, Java Script, Web Logic 9.0, HTML, JDBC 3.0, XML, JMS, WebSphere, Servlets, My Eclipse.

Java Developer

Confidential

Responsibilities:

• Responsible and active in the analysis, design, implementation and deployment of full Software Development Lifecycle (SDLC) of the project.
• Defined the search criteria and pulled out the record of the customer from the database. Make the required changes and save the updated record back to the database.
• Developed Struts action classes, action forms and performed action mapping using Struts framework and performed data validation in form of beans and action classes.
• Designed and developed user interface using JSP, HTML and JavaScript.
• Extensively used Struts framework as the controller to handle subsequent client requests and invoke the model based upon user requests.
• Validated the fields of user registration screen and login screen by writing JavaScript validations.
• Design and develop XML processing components for dynamic menus on the application.
• Developed build and deployment scripts using Apache ANT to customize WAR and EAR files..
• Developed stored procedures and triggers using PL/SQL in order to calculate and update the tables to implement business logic.
• Involved in postproduction support and maintenance for dynamic menus on the application.

Environment: Oracle 10g, Java 1.4, Struts, Servlets, HTML, XML, SQL, J2EE, JUnit, Tomcat 6.