PROFESSIONAL SUMMARY:

• Over 7 years of professional IT experience which includes more than 2 years of experience developing Hadoop/Big Data applications.
• Hands on experience with major components in Hadoop Ecosystem including Hive, HBase, Pig, Sqoop, YARN, Apache Spark, Flume, Oozie, Zookeeper, MongoDB and Map Reduce frameworks.
• Worked with Oozie work flow engine to schedule time based jobs to perform multiple actions.
• Analyzed large amounts of data sets writing Pig scripts and Hive queries.
• Experience in Importing and Exporting the Data using SQOOP from HDFS to Relational Database (Teradata) systems/Mainframe and vice - versa.
• Experience in building, maintaining multiple Hadoop clusters of different sizes and configuration and setting up the rack topology for large clusters.
• Worked in Informatica for the Extraction, Transformation and Loading from various sources to the enterprise data warehouse Developed and tested extraction, transformation and load (ETL) processes.
• Worked on Hadoop Architecture and various components such as HDFS, Job Tracker, Name node, Data Node and Map Reduce concepts.
• Experienced with performing real time analytics on NoSQL data bases like HBase and Cassandra.
• Supported Map Reduce Programs running on the cluster and wrote custom Map Reduce Scripts for Data Processing in Java.
• Experience in analyzing data using HiveQL, Pig Latin and custom Map Reduce programs in Java.
• Experienced on loading large sets of structured, semi structured and unstructured data and also performed importing and exporting data into HDFS and Hive using Sqoop.
• Strong understanding of Data warehouse concepts, ETL, data modeling experience using Normalization, Business Process Analysis, Reengineering, Dimensional Data modeling, physical & logical data modeling.
• Good knowledge on distributed, parallel, Cloud computing, No SQL concepts.
• Proficient in developing web based applications and client server distributed architecture applications in Java/J2EE technologies using Object Oriented Methodology.
• Expertise in design and development of various web and enterprise applications using various technologies like JSP, Servlets, Struts, Hibernate, Spring, JDBC, XML, AJAX, SOAP and Web Services.
• Leading, guiding and developing, Debugging, performance optimization during implementation of project.
• Highly adept at promptly and thoroughly mastering new technologies with a keen awareness of new industry developments and the evolution of next generation programming solutions
• Creative problem solver with the ability to rapidly analyze challenges, applying strategic thinking to tactical concerns with strong problem solving skills and a result oriented attitude. Excellent team Player with good Technical, Analytical and interpersonal skills

TECHNICAL SKILLS:

Big Data Technologies: HDFS, Hive, Map Reduce, Pig, Sqoop, Oozie, Zookeeper, YARN, Spark.

Scripting Languages: Shell, Python, Scala.

Programming Languages: Java, C++,C,SQL,PL/SQL.

Front End Technologies: HTML, XHTML, CSS, XML, JavaScript, AJAX, Servlets, JSP.

Java Frameworks: MVC, Apache Struts2.0, Spring and Hibernate.

Web Services: SOAP(JAX-WS), WSDL, SOA, Restful(JAX-RS), JMS.

Application Servers: Apache Tomcat, WebLogic Server, WebSphere, JBoss.

Databases: Oracle 11g, MySQL, MS SQL Server.

NoSQL Databases: HBase, MongoDB, Cassandra.

IDE: Eclipse, NetBeans.

Operating Systems: Linux, UNIX, Mac, Windows 7/8/10

PROFESSIONAL EXPERIENCE:

Confidential, Atlanta, GA

Hadoop Developer

Responsibilities:

• Used Sqoop to import customer information data from MySQL database into HDFS for data processing.
• Developed a workflow using Oozie to automate the tasks of loading the data into HDFS from analyzing the data.
• Developed Map Reduce jobs to calculate the total usage of data by commercial routers in different locations.
• Developed Map reduce programs for data sorting in HDFS.
• Optimized Hive queries to extract the customer information from HDFS or Hbase.
• Developed Pig Latin scripts to aggregate the log files of the business clients.
• Loaded and transformed large sets of structured, semi structured data using Pig Scripts.
• Involved in loading data from UNIX file system to HDFS.
• Wrote Map Reduce jobs to generate reports for the number of activities created on a particular day, during a dumped from the multiple sources and the output was written back to HDFS
• Designed workflows by scheduling Hive processes for Log file data, which is streamed into HDFS using Flume.
• Managed and reviewed Hadoop log files to identify issues when job fails.
• Developed Hive UDFs for preprocessing the data for analysis.
• Involved with a team who worked on NoSQL databases like MongoDB for POC (proof of concept) in storing documents using GridFs.
• Reviewed the HDFS usage and system design for future scalability and fault-tolerance.
• Involved in writing shell scripts in scheduling and automation of tasks.
• Worked on Hive for further analysis and for generating transforming files from different analytical formats to text files.
• Involved in ETL, Data Integration and Migration. Imported data using Sqoop to load data from Oracle to HDFS on regular basis.
• Very good understanding of Partitions, bucketing concepts in Hive and designed both Managed and External tables in Hive for optimized performance.
• Wrote Map Reduce jobs to generate reports for the number of activities created on a particular day, during a dumped from the multiple sources and the output was written back to HDFS
• Managed and reviewed Hadoop log files to identify issues when job fails.
• Used Hue for UI based PIG script execution, Oozie scheduling and creating tables in Hive.

Environment: Hadoop, HDFS, Map Reduce, Pig, Hive, Sqoop, Oozie, Java, Linux Shell Scripting and Big Data.

Confidential, Huntsville, AL

Java/J2EE Developer

Responsibilities:

• Involved in designing, developing, bug fixing, documenting and unit testing the application.
• Applied design patterns including MVC Pattern, Factor y Design Pattern and Singleton Design Pattern.
• Developed Business logic with the help of Spring and Data Access was implemented by using Hibernate.
• Used spring framework for Dependency Injection and integrated with Hibernate.
• Used Hibernate to interact with DB2 databases for storage, modification and retrieval of data.
• Developed stored procedures, triggers and functions to process the data using PL/SQL and mapped it to Hibernate Configuration File.
• Configured routes in Apache Camel using XML for routing messages between end points.
• Developed RESTful Web services using Jersey and returned the response in JSON format.
• Developed integration tests using REST-assured framework to validate RESTful web services.
• Product development was in an Agile (SCRUM) methodology, where progress and task assignment is discussed in everyday meetings.
• Worked with QA team for testing and resolving defects.
• Wrote unit tests using JUnit and used Apache's Log4j for debugging.
• Used Maven for building and managing dependencies of the application.

Environment: Eclipse, J2EE, Spring, Hibernate, Oracle 11g, MySQL, Tomcat, JBoss, HTML5, JUnit, CSS, Maven.

Confidential

Software Engineer

Responsibilities:

• Responsible for designing and leading project for paperless office automation project.
• Extensively used Java, Adobe API, JavaScript, SOAP, VBA with Advance Business Application Programming Language to deploy across the company offices.
• Worked with non-technical professionals to better understand the business knowledge, supporting live software systems and deploying project to all company offices across the country.
• Managed legal claims portal for electronic exchange of all information relating to a claim via web services, SOAP, JavaScript, Java application to application secure, trusted, reliable electronic communications
• Involved in liaising with partners in order to develop project that will connect offices remotely giving access to data securely using Java, SOAP, Proclaim Legal Case Management System
• Recognized system deficiencies and implements effective solutions by providing support
• Handled confidential information in line with the firm’s data security protocols
• Assisted the technical team in their design and development tasks

Environment: Java, Adobe API, VBScript, Proclaim Legal Case Management System, SOAP Web Services, HTML, Java Script, JDBC, Eclipse, JSP, HTML, Eclipse, XML, JUnit, Windows, UNIX.

Confidential

Java/J2EEDeveloper

Responsibilities:

• Involved in Analysis, Designing, Development and Testing phases of the application.
• Involved in creation and maintenance of the backend services using Spring, Hibernate, SQL Server and Oracle.
• Developed Web pages using JSPs with Tag libraries, HTML, and Java Script.
• Writing J2EE code using Spring, hibernate to upload input CSV files for credit risk data.
• Implemented Dependency Injection (IOC) feature of spring framework to inject dependency into objects and AOP is used for Logging.
• Designed and developed persistence layer build on ORM framework and developed it using Hibernate
• Implemented various Design patterns like Business Delegate, Data Transfer Objects DTO, Service locator, Session Facade and Data Access Objects DAO patterns.
• Involved in writing SQL, Stored procedure and PL/SQL for back end. Used Views and Functions at the Oracle Database end.
• Developed various documents within the application using XML by using Eclipse as IDE tool.
• Developed SOAP requests to interact with billing schedule system.
• Used Web Services (SOAP & WSDL) to exchange data between Server part and client.
• Integrating and deploying the application on WebLogic application server using ANT.
• Developed user interfaces for presenting the expense reports, transaction details using JSP, XML, HTML and Java Script.
• Used Log4J for logging the application exceptions and debugging statements.
• Proficient in doing Object Oriented Design using UML-Rational Rose.

Environment: JDK, JSP, Tiles, HTML, Java Script, WebLogic, Eclipse, Spring JDBC/ORM/DI, JSF, JPA/Hibernate, Spring, PL/SQL, Windows, CVS, Log4J, Ant.