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Exp Part of Big Data Center of Excellence (CoE), responsible for designing and building enterprise data analytics platform. |
Exp Worked with respective business units in understanding the scope of the analytics requirements. |
Exp Performed core ETL transformations in Spark. |
Exp Automated data pipelines which involve data ingestion, data cleansing, data preparation and data analytics. |
Exp Created end to end Spark applications using Scala to perform various data cleansing, validation, transformation and summarization activities on user behavioral data. |
Exp Developed end-to-end data pipeline using FTP Adaptor, Spark, Hive and Impala. |
Exp Implemented Spark utilizing Spark-SQL heavily for faster development, and processing of data. |
Exp Exploring with Spark for improving the performance and optimization of the existing jobs in Hadoop using Spark-SQL, Data Frame running in Yarn mode. |
Exp Handled importing other enterprise data from different data sources into HDFS using Sqoop and performing transformations using Hive, Map Reduce and then loading data into HBase tables. |
Exp Collecting and aggregating large amounts of log data using Flume and staging data in HDFS for further analysis |
Exp Wrapper developed in Python for instantiating multithreaded application and running with other applications. |
Exp Analyzed the data by performing Hive queries (Hive QL) and running Pig scripts (Pig Latin) to study customer behavior. |
Exp Data warehousing, experience in design, development and testing, implementation and support of enterprise data warehouse. |
Exp Used Hive to analyze the partitioned and bucketed data and compute various metrics for reporting. |
Exp Created components like Hive UDFs for missing functionality in HIVE for analytics. |
Exp Worked on various performance optimizations like using distributed cache for small datasets, Partition, Bucketing in Hive and Map Side joins. |
Exp Created Oozie workflows and coordinators to automate data pipelines daily, weekly and monthly. |
Exp Automated creation and termination of AWS EMR clusters using AWS, java sdk. |
Exp Environment: AWS EMR, Hadoop, Spark, Hive, Sqoop, HBase, UNIX, Talend, Pig, Linux, Java, Scala, Python, Ambari, Zookeeper. |
Exp Hortonworks |
Exp McKesson - Alpharetta, GA Dec’15 – Nov’16 |
Exp Hadoop/Spark Developer |
Exp Responsibilities: |
Exp Developed multithreaded Java based Input adaptors for ingesting click stream data from external sources like ftp server and S3 buckets on daily basis. |
Exp Created various spark applications using Scala to perform various enrichment of these click stream data combined with enterprise data of the users. |
Exp Implemented batch processing of jobs using Spark Scala API. |
Exp Developed Sqoop scripts to import/export data from Oracle to HDFS and into Hive tables. |
Exp Stored the data in columnar formats using Hive. |
Exp Involved building and managing NoSQL Database models using HBase. |
Exp Worked in Spark to read the data from Hive and write it to Hbase. |
Exp Optimized the Hive tables using optimization techniques like partitions and bucketing to provide better performance with Hive QL queries. |
Exp Worked with multiple file formats like Avro, Sequence, Parquet and Orc. |
Exp Converted existing MapReduce programs to Spark Applications for handling semi structured data like JSON files, Apache Log files, and other custom log data. |
Exp Loaded the final processed data to HBase tables to allow downstream application team to build rich and data driven applications. |
Exp Worked with a team to improve the performance and optimization of the existing algorithms in Hadoop using Spark, Spark -SQL, Data Frame. |
Exp Implemented business logic in Hive and written UDF’s to process the data for analysis. |
Exp Used Oozie to define a workflow to coordinate the execution of Spark, Hive and Sqoop jobs. |
Exp Addressing the issues occurring due to the huge volume of data and transitions. |
Exp Designed, documented operational problems by following standards and procedures using JIRA. |
Exp Environment: Java, Hadoop 2.1.0, Map Reduce2, Spark, Unix, Pig 0.12.0, Hive 0.13.0, Linux, Sqoop 1.4.2, Flume 1.3.1, Eclipse, AWS EC2, and Cloudera CDH 4. |
Exp American Home Shield - Memphis, TN Dec’14 – Nov’15 |
Exp Role: Hadoop Developer |
Exp Responsibilities: |
Exp Migrated the needed data from MySQL into HDFS using Sqoop and importing various formats of flat files in to HDFS. |
Exp Mainly worked on Hive queries to categorize data of different claims. |
Exp Involved in loading data from LINUX file system to HDFS |
Exp Written customized Hive UDFs in Java where the functionality is too complex. |
Exp Implemented Partitioning, Dynamic Partitions, Buckets in HIVE. |
Exp Designing and creating Hive external tables using shared meta-store instead of derby with partitioning, dynamic partitioning and buckets. |
Exp Generate final reporting data using Tableau for testing by connecting to the corresponding Hive tables using Hive ODBC connector. |
Exp Responsible to manage the test data coming from different sources |
Exp Reviewing peer table creation in Hive, data loading and queries. |
Exp Weekly meetings with technical collaborators and active participation in code review sessions with senior and junior developers. |
Exp Monitored System health and logs and respond accordingly to any warning or failure conditions. |
Exp Gained experience in managing and reviewing Hadoop log files. |
Exp Involved in scheduling Oozie workflow engine to run multiple Hive and pig jobs |
Exp Involved unit testing, interface testing, system testing and user acceptance testing of the workflow tool. |
Exp Created and maintained Technical documentation for launching Hadoop Clusters and for executing Hive queries and Pig Scripts |
Exp Environment: Apache Hadoop, HDFS, Hive, Map Reduce, Core Java, Pig, Sqoop, Cloudera CDH4, Oracle, MySQL. |
Exp Protective Life - Edina, MN Oct’13 - Nov’14 |
Exp Role: Java Developer |
Exp Responsibilities: |
Exp Implemented a Web based Application using Servlets, JSP, spring, JDBC, XML. |
Exp Involved in writing Spring Configuration XML file that contains declarations and other dependent objects declarations. |
Exp Used hibernate to connect to Database to create the DAO layer. |
Exp Developed Application Framework using Model-View-Controller using the technology Spring. |
Exp Used HTML, XHTML, XML, XSLT, XPATH, JSP and Tag Libraries to develop view pages |
Exp Multilayer Applications construction using Open JPA, HTML5, Spring MVC. |
Exp Annotated Spring Architecture (Spring Beans) |
Exp Implemented UNIX shell scripts to migrate various data files to S&P ratings repository |
Exp Implemented smooth pagination capability using JSP to remove existing pagination utility |
Exp Worked on Geo API to provide geological access capability to S&P.com site. |
Exp Involved in Agile process to streamline development process with iterative development. |
Exp Code reviews and Managing the CVS Repository. |
Exp Prepare builds for DEV and UAT environments. |
Exp Participating in the regular team meetings sprint planning meetings, user story review meetings etc. |
Exp Involved in preparing High & low level design docs with UML diagrams using Microsoft VISIO tool. |
Exp Environment: JDK 1.5, XML, HTML, XHTML, JSP, Spring, DAO, Oracle Express edition, Apache ANT, CVS, Junit, UNIX, Log4J, CSS Style Sheets, Apache Tomcat, J2EE, Maven 3 |
Exp Accenture – Hyderabad, India Oct’11– Sep’13 |
Exp Role: Java Developer |
Exp Responsibilities: |
Exp Involved in Requirements analysis, design, and development and testing. |
Exp Involved in setting up the different roles & maintained authentication to the application. |
Exp Designed, deployed and tested Multi-tier application using the Java technologies. |
Exp Involved in front end development using JSP, HTML & CSS. |
Exp Implemented the Application using Servlets |
Exp Deployed the application on Oracle Web logic server |
Exp Implemented Multithreading concepts in java classes to avoid deadlocking. |
Exp Used MySQL database to store data and execute SQL queries on the backend. |
Exp Prepared and Maintained test environment. |
Exp Tested the application before going live to production. |
Exp Documented and communicated test result to the team lead on daily basis. |
Exp Involved in weekly meeting with team leads and manager to discuss the issues and status of the projects. |
Exp Environment: J2EE (Java, JSP, JDBC, Multi-Threading), HTML, Oracle Web logic server, Eclipse, MySQL, JUnit. |
Exp Golan Technologies – Hyderabad, India Jun’09 - Sep’11 |
Exp Role: Java Developer |
Exp Golan Technologies range from turnkey solutions to custom, client-driven solutions in a variety of product categories including website development and platform based applications, demand intelligence and business insight generation. Smart sites have the ability to provide a unified user experience and consistent m... |
Exp Responsibilities: |
Exp Involved in the analysis, design, implementation, and testing of the project. |
Exp Developed UI using HTML, JavaScript, CSS and JSP for interactive cross browser functionality and complex user interface. |
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