PROFESSIONAL SUMMARY:

• 9+ years of experience in Software Analysis, Design, Development and Implementation of Java/J2EE applications and Hadoop Technology stack.
• Over 3+ years of hands on experience working with HDFS, Map Reduce and Hadoop ecosystem like Hive, HBase, Sqoop, Flume, Pig, Zookeeper, Apache Kakfa and Storm.
• Experience in developing ETL logic using Talend, including interfacing with Amazon AWS SQS queues and S3 buckets and developing REST API’s in Talend.
• Experience implementing DW solutions on Greenplum & HAWQ databases, to support analytics.
• Developed UI application using AngularJS, consuming REST data from Apache Solr (search engine).
• Strong knowledge in NOSQL column oriented databases like Mongo DB, HBase and integrating them with Hadoop cluster.
• Worked on various distributions like Pivotal, Cloudera and Apache.
• Over 5 years of experience developing applications using J2EE Design Patterns like creational, structural and behavioral design patterns (MVC Architecture, Singleton, Factory, Struts, etc).
• Experience working with Tableau BI, developing reports and interfacing with Greenplum Database to run analytics.
• Strong Experience in Internet Technologies with experience in J2EE, JSP, Struts, Servlets, JDBC, Apache Tomcat, JBoss, WebLogic, WebSphere, SOAP Protocol, XML, XSL, XSLT, Java Beans, HTML.
• Experience writing web services using Axis framework.
• In depth understanding and exposure to all phases of OOA/OOD and OOP.
• Strong SQL, PL/SQL experience and very good exposure to MS SQL Server, MYSQL, Oracle & Greenplum databases.
• Involved in Confidential Central (java project) to generatepolicy summary, system usage & forensic summaryreports, by parsing the huge logs uploaded by multiple customers.
• Good Experience in all the Phases of Software Development Life Cycle.
• Knowledge of hibernate persistence technology and web services.
• Experienced working in the Linux, UNIX and Windows environment.
• Experience in methodologies such as Agile, Scrum and Test driven development.
• Strong program analyzing skills, with ability to follow project standards.
• Strong ability to understand new concepts and applications.
• Excellent Verbal and Written Communication Skills have proven to be highly effective in interfacing across business and technical groups.

TECHNICAL SKILLS:

Big Data: Hadoop, Map Reduce, HBase, Hive, Pig, Sqoop, Flume, Yarn, Talend, Apache Solr, Kafka, Storm, Cassandra.

Languages: Java, J2EE, Python, PL/SQL, Map Reduce.

Databases: Oracle 10/11g, MS SQL Server, DB2, MS - Access, MYSQL, Sybase IQ, HBase, Cassandra, MongoDB, GemFire, Greenplum, HAWQ, PostgreSQL.

Technologies: Java, JDBC, Spring Framework, JPA, Hibernate, Web Services, Struts, JSP, Servlets, ANT, Maven, AngularJS, XML, JSON.

Tools: Eclipse, Maven, Gradle, SBT, Ant, Soap UI, Soap Sonar, JDeveloper, Sql developer, JIRA, Eclipse MAT, IBM thread dump Analyzer, Tableau, Talend.

App Servers: IBM Web Sphere, Web Logic, Apache Tomcat, J-Boss, Jetty, TCServer.

Version control: Git, Perforce, Subversion.

PROFESSIONAL EXPERIENCE:

Confidential, San Ramon, CA

Big Data Engineer

Responsibilities:

• Wrote Map Reduce jobs (java) to implement data science algorithm in Hadoop, and also for data preprocessing.
• Importing and exporting data into HDFS and Hive using Sqoop.
• Handled importing of data from various data sources, performed transformations using Hive, MapReduce, loaded data into HDFS and Extracted the data from Oracle into HDFS using Sqoop.
• Creating procedures/functions in HAWQ & green plum (mpp database) to retrieve desired result set for reporting.
• Created external tables in Greenplum, to load the processed data back into GPDB using GPload utility and gpfdist.
• Written Storm topology to accept events from Kafka producer and emit into Hive, and generate alerts.
• Responsible for data mapping after scrubbing for given set of requirements, used Complex SQL Queries as part of Data Mining and perform analysis, design and Data Modeling.
• Designing overall ETL load process to move data incrementally and transform into new data model.
• Created Talend Jobs to extract data from Hadoop and ingest in green plum (mpp database) incrementally.
• Created Talend jobs to read messages from Amazon AWS SQS queues & download files from AWS S3 buckets.
• Developed REST API in Talend.
• Support all data needs for application development, including data source identification, analysis, and performance tuning and data migration.
• Work with businesses to understand and define the business problem, develop a working prototype, prepare data for analysis.
• Applied data cleansing/data scrubbing techniques to ensure consistency amongst data sets.
• Built REST API using Spring boot.
• Wrote Python scripts for text parsing/mining
• Developed UI application using AngularJS, integrated with Apache Solr to consume REST.
• Worked along with Tableau developers to help performance tune the visualizations graphs/analytics.
• Worked on loading data into Gemfire XD database, using table functions.

Technologies: HDFS, MapReduce, Hive, HBase, Talend, Java, Spring Boot, JPA, Cloud Foundry, HAWQ, JSON, XML Python, Pivotal HD, Tableau, Greenplum, GPload, Gpfdist, Gemfire XD, Angular JS, UNIX Shell Scripts.

Confidential, Santa Clara Ca

Software Engineer

Responsibilities:

• Worked on developing map reduce jobs to parse huge customer logs, for analytics and report generation.
• Moving all log files generated from various sources to HDFS for further processing.
• Responsible for support and maintenance, by troubleshooting any issues the customer is facing with the Adaptive Authentication (On Premise) product and help resolving them.
• Worked closely with customers, professional services team to troubleshoot product/installation related issues and providing resolutions.
• Helped customers in customizing/configuring Adaptive Authentication product for their specific needs.
• Assisted customers in capturing thread/heap dumps on different application servers and analyzed them to identify application hangs and performance issues/memory related issues.
• Analyzed AWR reports to troubleshoot/identify performance bottlenecks.
• Provide Root Cause Analysis of incidents to stakeholders and clients.
• Managed communications to customers at all levels to maintain positive relationships.
• Reported software bugs (after reproducing in local environment) and customer suggestions (enhancement requests) to development and product management teams.
• Worked closely with Professional Services team to verify new installs/upgrades and transitioning them over to support.
• Created internal environments to reproduce customer reported issues and test/verify hot fixes and upgrades.
• Created technical notes to contribute to knowledgebase.
• Performed 24/7 on call duties once a month.

Environment: Java, Web Services (WSDL, SOAP), Spring, Hibernate, XML, ANT, Maven, drools, Oracle, MSSQL, DB2, JDBC, JSON, Map Reduce.

Confidential

Java Developer

Responsibilities:

• Involved in Full Software Development Life Cycle (SDLC).
• Worked with Object Oriented design patterns such as Factory classes. Developed few Factory Classes which act as controllers and diverts the HTTP Request to a particular Request Handler Class based on the Request Identification Key.
• Developed Interfaces using JSP, based on the Users, Roles and Permissions. Screen options were displayed on User permissions. This was coded using Custom Tags in JSP using Tag Libraries.
• Developed code to handle web requests involving Request Handlers, Business Objects, and Data Access Objects
• Build process with ANT framework to build and deploy the application. Various ANT Tasks were defined for Compile, Build, Deploy, Check-in, and Checkout from CVS.
• Worked with DB (DBO) classes and used JDBC drivers from different vendors. Used Various JDBC drivers such as MSSQLSERVER, WEBLOGIC for SQL Server, MYSQL connector for MYSQL Database
• Designed and developed a user usage logging facility using Apache Log4J 1.2.8. Used different Levels of Loggers Such as INFO, DEBUG, WARN, ERROR and FATAL.
• Installed and administered SQL Server 2000. Implemented maintenance plans including backups, security, check Integrity, Optimization, all with documentation.
• Designed and developed database in Oracle.
• Involved in Export/Import of data using Data Transformation Services (DTS). Imported data from flat files to various databases and vice-versa.
• Worked and Modified the Database Schema according to the Client requirement.
• Adopted three-tier approach consisting of Client Tier, Business Logic Tier, and Data Tier.
• Tested the entire System according to the Use Cases using JMeter.
• Involved in tracing and troubleshooting large volumes of source code using logging tools like log4j, and classes such as Print Writer.
• Used XML, XSL and XSLT for developing a dynamic and flexible system for handling data.
• Packaged and deployed the entire application code to integration testing environment for all the releases.
• Implemented using Extreme Programming in Coding. Programmers followed all the standards in the coding.

Environment: MS SQL Server 2000, Functions, Views, Oracle 8i/9i, MYSQL, Linux8, Windows2000, Apache Tomcat, Web Sphere 5.0, WSAD, J2EE (Java 1.4, Servlets, JSP, JDBC-SQL), HTML, XML, UML, Eclipse 3, JMeter 2.0, JavaScript, CVS, ANT 1.5.1, JUnit, Log4J 1.2 8.