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Hadoop Developer Resume


  • Extensive experience as Production Support Lead.
  • Extensive experience in System Analysis, Database Design, Development and Administration of SQL Server 2000/2005/2008 in production, development and testing environments and also good experience in development using Big Data/Hadoop ecosystem tools.
  • Good experience in processing Unstructured, Semi - structured and Structured data.
  • Hands on Experience with objects creation such as tables, views, indexes, stored procedures, triggers, user defined functions, and data dictionaries using T-SQL scripts.
  • Proficient in SQL Server installation, configuration, query optimization, backup/ recovery and database consistency checks.
  • Working experience in managing, monitoring and tuning SQL Server performance using SQL Server Profiler/Monitor and Windows Performance Monitor.
  • Experience in scripting, analyzing and debugging both new and existing Complex Stored procedures.
  • Thorough understanding of the HDFS, Map Reduce framework and extensive experience in developing Map Reduce Jobs
  • Experienced in building highly scalable Big-data solutions using Hadoopandmultiple distributions i.e., Cloudera, Horton works and NoSQL platforms
  • Well - versed in scheduling Jobs, Alerts and SQL Mail Agent using SQL Server Agent Services.
  • Hands-on experience on major components in Hadoop Ecosystem including Hive, HBase, HBase-Hive Integration, PIG, Sqoop, Flume & knowledge of Mapper/Reduce/HDFS Framework.
  • Involved in migration from MS SQL Server , DTS to SSIS, running and scheduling SSIS packages, Look-up for cleaning bad data, validating data using SSIS.
  • Outstanding in data migration from heterogeneous databases like Oracle, MS access and flat files to SQL Server using SSIS .
  • SAS Certified Programmer with experience in Pharmaceutical industry involving data management and statistical analysis for clinical trials.
  • Extensive experience in BASE SAS, SAS MACROS, SAS/STAT, SAS/ACCESS, SAS PC (V9.0), SAS/GRAPH.
  • Flexible, enthusiastic and project oriented team player with excellent written, verbal communication and leadership skills to develop creative solutions for challenging client needs.
  • Experience is providing 24X7 support and on call rotation schedule


IDE: Eclipse, net beans

Hadoop Ecosystem: HDFS, Map Reduce, Hive, Pig, Hbase, Sqoop, Oozie, ElasticSearch.

Database Tools: Enterprise Manager, Query Analyzer, SQL Profiler, Upgrade Wizard, Replication, Database Engine Tuning Advisor, Business Intelligence Development Studio (BIDS), Lite Speed.

Databases: MS SQL Server 2000/2005/2008/ 2012 , MySQL, Oracle.

ETL Tools: SQL Server Integration Services (SSIS), Data Transformation Services (DTS), BCP


Languages: C, C++, T-SQL, PL/SQL

Web Technologies: Web Services, XML, HTML

Operating System: Windows NT/2000/2003/XP, Vista, BizTalk Server

Applications: MS-Office suite, MS Visual Studio 2005

Protocols: HTTP, TCP/IP, FTP



Hadoop Developer


  • Good understanding and related experience with Hive, Pig and Map/Reduce.
  • Deep understanding of schedulers, workload management, availability, scalability and distributed data platforms.
  • Installed and configured Hadoop MapReduce, HDFS, developed multiple MapReduce jobs in Java for data cleaning and pre-processing.
  • Involved in loading data from UNIX file system to HDFS using HDFS Api and Flume.
  • Wrote MapReduce jobs to discover trends in data usage by users.
  • Involved in managing and reviewing Hadoop log files.
  • Involved in running Hadoop streaming jobs to process terabytes of text data.
  • Load and transform large sets of structured, semi structured and unstructured data.
  • Wrote pig UDF’s.
  • Automated all the jobs starting from pulling the Data from different Data Sources and pushing the result dataset to Hadoop Distributed File System and running MR jobs and PIG.
  • Wrote unit test cases using MR Unit




  • Provide functional expertise in production environment.
  • Involved in job scheduling and alerts.
  • Provided a range of services that ensures data integrity, delivery, and security.
  • Involved in managing and scheduling daily jobs related to data transfers, backup and recovery using SQL Server Agent and job schedulers.
  • Created and maintained database objects, complex Stored Procedures, Triggers, and Tables, Views and SQL Joins and other statements for various applications.
  • Wrote new stored procedures and modified existing ones and tuned them such that they reduced the manual work by sending automated alerts.
  • Monitored and Managed SQL Server Agent jobs and Alerts to ensure successful completion of tasks on timely manner.
  • Created and maintained database objects, complex Stored Procedures, Triggers, and Tables, Views and SQL Joins and other statements for various applications.
  • Worked with team in Tuning SQL Statements using Indexes and designed and implemented the Stored Procedures and Triggers for automating tasks.
  • Work with Team Members to ensure the project meets business needs.
  • Analysis of current processes/systems to endure jobs run well in production.
  • Documented various processes and applications for users.
  • Responsible for transferring the data using SSIS packages.
  • Create SPs & UDF to processing data & as well as fetch data for Reporting.
  • Involved in Release and Change Management responsibilities involving track of weekly changes, which are coming into SIT and later getting deployed in Production.


SQL Developer


  • Responsible for managing scope, planning, tracking and change control aspects of the project.
  • Installation and configuration of SQL Server 2008 in production and testing environments.
  • Involved in database design in client server by analyzing business requirements.
  • Communicate activities/progress to client team, business analysts and QA team through weekly feature meetings.
  • Responsible for leading, guiding, mentoring ORMB offshore and onshore implementation team.
  • Supported Implementation Team in understanding the Business Requirement. Work on change requests and thoroughly testing the changed functionality with impact analysis.
  • Implemented customized incremental release packages.
  • Documented Use Cases, Functional and Technical Design Documents.
  • Generated T-SQL scripts to create and maintain database objects.
  • Created and maintained database objects, complex Stored Procedures, Triggers, and Tables, Views and SQL Joins and other statements for various applications.
  • Wrote new stored procedures and modified existing ones and tuned them such that they performed well.
  • Effectively used temporary tables for stored procedures considering the performance issues with the front-end application.


SAS/SQL Programmer


  • Performed data analysis, statistical analysis, generated reports, listings and graphs using SAS tools- SAS/Base, SAS/Macros, SAS/Graph, SAS/SQL, SAS/Connect and SAS/Access.
  • Responsible for locating appropriate databases for projects and performing relevant analysis.
  • Processed data collection to ensure proper quality of data.
  • Maintained the daily error log for cleaning the data.
  • Developed SAS macros for data cleaning, reporting and to support routing processing.
  • Analyzed and interpreted numerical data from various sources organized and summarized data for analysis.
  • Presented numerical information in various formats. Created SAS Customized reports using the Data null technique.
  • Generated graphs using SAS/GRAPH and the SAS Graphics Editor. Used Proc Report to generate reports.
  • Prolifically generated SQL queries for the reports.
  • Successfully identified problems with the data, produced derived data sets, tables, listings and figures, which analyzed the data to facilitate correction.


Application Developer


  • Streamlined records management within enrollment management program provided by 9 campuses. Automate student enrollment process. Decrease time for required creation of 4,000 records on spreadsheet.
  • Designed and built SQL Server database that supported 1,000,000+ active and alumni student records. Combined database with excel to automate spreadsheet development.
  • Reduced hours for creating spreadsheet to 2 hours, with zero errors, decrease in man-hours, improvement in system scalability, and production of additional reports.
  • Architected Access database, connected system to server, and integrated network with system’s GUI that facilitated teamwork among agents.
  • Created manuals on database functionality and provided training and support to staff and student workers.
  • Created online surveys for students.
  • Worked on university websites, also trained staff on updating the website/ personal profiles on the website.

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