PROFESSIONAL SUMMARY:

• Around 7+ years of IT experience in software Development Life Cycle (Analysis, Design, Development, Testing, Deployment and Support) using WATERFALL and AGILE methodologies. Having 3+ years of experience in Data Analysis using Hadoop Eco System components (Spark, HDFS, MapReduce, Pig, Sqoop,Kafka, Hive, Cassandra and HBase) in Financial, Retail and Health - care sector.
• Experience in Hadoop components like HDFS, MapReduce, Job Tracker, Name Node, Data Node Task Tracker and Apache Spark.
• Experience in importing data from existing relational databases (Oracle, MySQL and Teradata) that provide SQL interfaces using Sqoop.
• Hands on experience in Avro, Parquet, RC files and Combiners, Counters, Dynamic Partitions, Bucketing for best practice and performance improvement.
• Experience in developing Map Reduce programs using java API and using hive, pig to perform data analysis, data cleaning and data transformation.
• Designed HIVE queries & Pig scripts to perform data analysis, data transfer and table design to load data into Hadoop environment.
• Expertise in writing Hive UDF, Generic UDF's to in corporate complex business logic into Hive Queries.
• Implemented Sqoop scripts for large dataset transfer between Hadoop and RDBMS.
• Expertise in working with Hive data warehouse tool-creating tables, data distribution by implementing partitioning, bucketing, writing and optimizing the HiveQL queries.
• Worked on different file formats (ORCFILE, TEXTFILE) and different Compression Codecs (GZIP, SNAPPY, BZIP)
• Experience in composing shell scripts to dump the shared information from MySQL servers to HDFS.
• Performed different ETL operations using Pig for joining operations and transformations on data to join, clean, aggregate and analyze data.
• Involved In working with Maven for build process.
• Extensive experience on importing and exporting data using stream processing platforms like Flume and Kafka
• Experience in data workflow scheduler Zoo-Keeper and Oozie to manage Hadoop jobs by Direct Acyclic Graph (DAG) of actions with the control flows.
• Knowledge in creating impala views on top of Hive tables for faster access to analyze data.
• Integrated BI tool like Tableau with Impala and analyzed the data.
• Experience with NoSQL databases like HBase, Cassandra and MongoDB.
• Hands on Experience in designing and developing applications in Spark using Scala to compare the performance of Spark with Hive.
• Experience in collecting the log data from different sources (webservers and social media) using Flume, Kafka and storing in HDFS to perform the MapReduce jobs.
• Used Spark API over Cloudera Hadoop YARN to perform analytics on data.
• Exposure in working with data frames in Spark.
• Hands on experience in working with Spark SQL queries, Data frames, import data from Data sources, perform transformations, perform read/write operations, save the results to output directory into HDFS.
• Profound experience in working with Cloudera (CDH4 &CDH5) and Horton Works Hadoop Distributions and Amazon EMR Hadoop distributors on multi-node cluster.
• Good knowledge on AWS infrastructure services Amazon Simple Storage Service (Amazon S3), EMR, and Amazon Elastic Compute Cloud (Amazon EC2).
• Knowledge in creating dashboards with the help of business inteligence tool such as Tableau.
• Very Good understanding and Working Knowledge of Object Oriented Programming (OOPS), J2SE, Multithreading in Core Java, HTML, servlets, JSP, JDBC.
• Experience in working with different relational databases like MySQL and Oracle.
• Working knowledge in database design, writing complex SQL Queries and Stored Procedures.
• Capable at using AWS utilites such as EMR,S3 and Cloud watch to run and monitor Hadoop/Spark jobs on AWS.
• Having knowledge in making use of Pycharm and Python shell to develop spark based applications using Python as lanquage.
• Expertise in various faces of Software Development including analysis, design, development and deployment of applications using Servlets, JSP, Java Beans, Struts, Spring Framework, JDBC.
• Having Experience on Development applications like Eclipse, NetBeans etc.
• Involved in Agile methodologies, daily scrum meetings, spring planning.
• Good analytical, communication, problem solving skills and adore learning new technical, functional skills .

TECHNICAL SKILLS:

Bigdata Ecosystem: HDFS and Map Reduce, Pig, Hive, Impala, YARN, HUE, Oozie, Zookeeper, Solr, Apache Spark, Apache STORM, Apache Kafka, Sqoop, Flume.

NoSQL Databases: HBase, Cassandra, and MongoDB

Hadoop Distributions: Cloudera, Hortonworks

Programming languages: Java, C, SCALA, Pig Latin, HiveQL.

Scripting Languages: Shell Scripting

Databases: MySQL, oracle, Teradata, DB2

Build Tools: Maven, Ant, sbt

Reporting Tool: Tableau

Version control Tools: SVN, Git, GitHub

Cloud: AWS, Azure

App/Web servers: WebSphere, WebLogic, JBoss and Tomcat

Web Design Tools: HTML, AJAX, JavaScript, JQuery, CSS and JSON.

Operating Systems: WINDOWS 10/8/Vista/ XP

Development IDEs: NetBeans, Eclipse IDE, Python(IDLE)

Packages: Microsoft Office, putty, MS Visual Studio

WORK EXPERIENCE:

Confidential, New York City,NY

Sr.Hadoop/Spark Developer

Responsibilities:

• Developed data pipeline using Kafka, Sqoop, Hive and Java map reduce to ingest customer behavioral data and financial histories into HDFS for analysis.
• Developed SQOOP scripts for importing and exporting data into HDFS and Hive.
• Developing design documents considering all possible approaches and identifying best of them.
• Responsible to manage data coming from different sources.
• Developing business logic using Scala.
• Responsible for loading data from UNIX file systems to HDFS
• Involved in creating Hive Tables, loading with data and writing Hive queries which will invoke and run MapReduce jobs in the backend.
• Worked with NoSQL databases like HBase in creating HBase tables to load large sets of semi structured data coming from various sources.
• Developed scripts and automated data management from end to end and sync up between all the clusters.
• Exploring with Spark for improving the performance and optimization of the existing algorithms in Hadoop.
• Import the data from different sources like HDFS/HBase into Spark RDD.
• Experienced with Spark Context, Spark -SQL, Data Frame, Pair RDD's, Spark YARN.
• Involved in converting Hive/SQL queries into Spark transformations using Spark RDD and Scala.
• Developed functional programs in SCALA for connecting the streaming data application and gathering web data.
• Implemented the workflows using Apache Oozie framework to automate tasks.
• Configured connection between Hive and Tableau using Impala for BI development tool.
• Worked in Agile Methodology and used JIRA for maintain the stories about project.
• Experience in automated scripts using Unixshell scripting to perform database activities.
• Working experience with Linux lineup like Redhat and CentOS.
• Good analytical,communication,problem solving skills and adore learning new technical, functional skills.

Environment: Hadoop, Map Reduce, Hive, Java, Maven, Impala, Pig, Spark, Oozie, Oracle, Yarn, GitHub, Tableau, Unix, Cloudera, Kafka, Sqoop, Scala, HBase.

Confidential, Rocky Hills,CT

Hadoop Developer

Responsibilities:

• Created hive queries for extracting data and sending them to clients.
• Created SCALA programs to develop the reports for Business users.
• Created hive UDFs for formatting data in SCALA.
• Distributed programming through spark, specifically Scala.
• Transformation and Analysis in Hive/Pig, Parsing the raw data using Map reduce and SPARK.
• Proactively involved in ongoing maintenance, support and improvements in Hadoop cluster.
• Worked on capturing transactional changes in the data using MAPREDUCE and HBASE.
• Understanding the existing Enterprise data warehouse set up and provided design and architecture suggestion converting to Hadoop using MapReduce, HIVE, SPARK, SQOOP and Pig Latin.
• Familiar with AWS Components like EC2,S3.
• Worked with SQOOP import and export functionalities to handle large data set transfer between DB2 database and HDFS.
• Worked on ingesting data from different sources.
• Supported multiple application extracts coming out of Big Data Platform.
• Followed agile methodology during project delivery.
• Knowledge of CodeHub and GIT.
• Worked/Coordinated with Offshore to complete the tasks.
• Understanding of ServiceNowtool to submit Change requests, incidents for application deployments.

Environment: mapR, Hive, Pig, SPARK, SCALA, MapReduce, UNIX scripting, HBASE, Talend.

Confidential, Cranston, RI

Hadoop Developer

Responsibilities:

• Implemented technical architecture and developed various Big Data workflows using custom MapReduce, Pig, Hive, Cassandra and Sqoop.
• Deployed on premise cluster and tuned the cluster for optimal performance for job execution needs and processes large data sets.
• Built re-usable Hive UDF libraries for business requirements which enabled various business analysts to use these UDF’s in Hive querying.
• Used Kafka to dump the application server logs into HDFS.
• The logs that are stored on HDFS are analyzed and the cleaned data is imported into Hive warehouse which enabled end business analysts to write Hive queries.
• Configured various big data workflows to run on the top of Hadoop using oozie and these workflows comprise of heterogeneous jobs like Pig, Hive, Sqoop and MapReduce.
• Experience in working with NoSQL database HBase in getting real time data analytics.
• Used Maven extensively for building jar files of MapReduce programs and deployed to Cluster.
• Assigned the tasks of resolving defects found in testing the new application and existing applications.
• Analyzing the requirements, designing and developing solutions.
• Managing Project team in achieving the project goals including resource allocation, resolving technical issues and mentoring the resources.
• Used Linux (Ubuntu) machine for designing, developing and deploying of Java modules.

Environment: MapReduce, Pig, Hive, Sqoop, Kafka, FLUME, HBase, JDK 1.6, Maven, Linux

Confidential - Rolling Meadows, IL

Hadoop Developer.

Responsibilities:

• Designed docs and specs for the near real-time data analytics using Hadoop and HBase.
• Installed Cloudera Manager on the clusters.
• Used a 15-node cluster with Cloudera Hadoop distribution on Amazon EC2.
• Developed ad-clicks based data analytics, for keyword analysis and insights.
• Crawled public posts from Facebook and tweets.
• Used Flume and Kafka to get the streaming data from Twitter and Facebook.
• Hands on experience in MapReduce jobs with the Data Science team to analyze this data.
• Converted output to structured data and imported to Tableau with analytics team.
• Defined problems to look for right data and analyze results to make room for new project.

Environment: Hadoop, HBase, HDFS, MapReduce, Flume, Java, Tableau, Cloudera Manager, Amazon EC2.

Confidential

Java Developer

Responsibilities:

• Interaction with business team for detailed specifications on the requirements and issue resolution.
• Developed user interfaces using HTML, XML, CSS, JSP, Java Script and Struts Tag Libraries and defined common page layouts using custom tags.
• Developed client-side validations using JavaScript.
• Implemented Struts MVC Paradigm components such as Action Mapping, Action class, Action Form, Validation Framework, Struts Tiles and Struts Tag Libraries.
• Involved in the development of the front end of the application using Struts framework and interaction with controller java classes.
• Provided development support for System Testing, User Acceptance Testing and Production and deployed application on JBoss Application Server.
• Wrote and executed efficient SQL queries (CRUD operations), JOINs on multiple tables, to create and test sample test data in Oracle Database using Oracle SQL Developer.
• Used CVS for check-in, check-out of files to control versions of files.
• Used Eclipse as an IDE.
• Used HP Quality Center to track activities and defects
• Implemented logging with Log4j
• Used Maven to compile and build project.
• Developed Style Sheet to provide dynamism to the pages and extensively involved in unit testing and System testing using JUnit and involved in critical bug fixing.
• Utilized the base UML methodologies and Use cases modeled by architects to develop the front-end interface. The class, sequence and state diagrams were developed using Visio.

Environment: Java, Struts 1.2, Hibernate 3.0, JSP, JavaScript, HTML, XML, Oracle, Eclipse, JBoss Application Server, ANT, CVS, and SQL Developer.

Confidential

SQL Developer

Responsibilities:

• Involved in installation and configuration of SQL server 2005 on Database Servers.
• Developed database objects like Tables, Views, User-defined Functions and Triggers to handle complex business rules, history data and audit analysis.
• Worked with Complex T-SQL queries, Sub queries, co-related sub queries and joins to fetch the data as per the functional requirements.
• Used Common Table expressions for hierarchical data and complex stored procedures.
• Created various integrity constraints like Primary Key, Foreign Keys, Unique and Check to support application functionality.
• Worked with command shell to invoke executables in SQL Stored Procedures .
• Actively participated in gathering of User Requirement and System Specification.
• Maintained User account administration for Different domains.
• Involved in creating SQL reports and generating emails through DB Mail.
• Worked with loading of data from Excel using OPEN ROWSET commands.
• Creation/ Maintenance of Indexes for fast and efficient reporting process .
• Created SSIS package to load data from Flat files, DB2 by using Lookup, Derived Columns, Data conversions and Condition Split transformations.
• Maintained the physical Databases by monitoring Performance, space utilization and physical integrity.
• Generating Reports as per the requirement using SSRS.

Environment: MS SQL server 2005, Microsoft Visual studio 2005, SSIS, SSRS, DB2, Microsoft Visual Studio 2005, Windows Server 2005, Performance Monitor and MS Office.