SUMMARY

• Around 10 years of extensive IT experience in which 2 years as a Hadoop developer experience with Software analysis, design, development, testing, deployment and maintenance.
• Extensive experience in JAVA, J2EE, Spring and Web Services technologies.
• Around 2 years experience in Hadoop Ecosystems.
• Experience with Hadoop Ecosystem: Hortonworks 2.0/2.2/2.3,CDH 4.3.2/5.2, HDFS, MapReduce, YARN, Sqoop, Flume, Oozie, Pig, Hive, Scala, HBase, Avro, Cassandra, Solr, Spark, Storm and Kafka.
• Experience in importing and exporting the data using Sqoop from HDFS to Relational Database systems and vice - versa.
• Experience in managing and reviewing Hadoop Log files.
• Experience with Oozie Workflow Engine in running workflow jobs with actions that run Hadoop Map/Reduce and Pig jobs.
• Experience in Database Design, ER modeling, SQL, PL/SQL, procedures, functions, triggers
• Experienced the integration of various data sources like Java, RDBMS, Shell Scripting, Spreadsheets, and Text files.
• Experience in both Web services and RESTfull Web services using XML, JAXB, SOAP, Apache Axis2, Apache CXF, SOAP UI and Postman.
• Good experience in developing a build script using Ant, Maven
• Proficient in development methodologies such as Agile, Scrum and Waterfall.
• Having knowledge on IBM Netezza
• Worked with customers, end users to formulate and document business requirements.
• Worked extensively on Business Requirements Analysis, Functional and Non-Functional requirements analysis, Risk Analysis and UAT.
• Hands-on experience on varies areas of telecom spaces like Fixed Line, Broadband, Service Provisioning, GSM Prepaid and Postpaid, Roaming, Mediation, Rating and Billing.
• Good communication, inter-personal skills, team player and contributor who delivers on schedule under tight schedules.

TECHNICAL SKILLS

Hadoop Distribution: Apache, Cloudera CDH, Hortonworks HDP

Big Data Technologies: Apache Hadoop (MRv1,MRv2), Hive,Pig,Sqoop,HBase,Flume,Zookeeper,Oozie, Ambari, Spark, Kafka and Storm

Operating Systems: Windows, Linux & Unix

Languages: C,C++, Java, PL/SQL, Unix Shell

Frameworks: Struts, Spring and Hibernate

Web Technologies: HTML, JSP, CSS, JavaScript

IDEs: Eclipse, IBM Web Sphere

Web Servers /App Servers: Apache Tomcat 6.0/7.0, IBM WebSphere 6.0/7.0, JBoss 4.3

Database: Oracle 8i/9i/10g, MySQL,HBase(NoSQL), MongoDB(NoSQL), LDAP

Test Management Tool: Quality Center, BugZilla, JIRA

PROFESSIONAL EXPERIENCE

Confidential, Florida

Hadoop Developer

Responsibilities:

• Understand the business needs and objectives of the system and interacted with the end client/users and gathered requirements for the integrated system
• Worked with the user group for requirement gathering, planning and implementation
• Involved in various activities of the project like information gathering, analyzing the information, documenting the functional and nonfunctional requirements
• Developed MapReduce jobs for data cleaning and preprocessing.
• Responsible for data movement from relational database to HDFS using Sqoop.
• Created external tables using hive to access the data from reporting tools using hive ODBC connectors
• Created Hive queries for data analysis to meet the Business requirements.
• Involved writing Pig Latin for data Processing as per Use cases
• Handled importing of data from various data sources, performed transformations using Spark and loaded data into HDFS.
• Involved in converting Hive QL queries into Spark transformations using Spark RDD and Scala.
• Used DataFrame API in Scala for converting the distributed collection of data organized into named columns.
• Generating Scala and Java classes from the respective APIs so that they can be incorporated in the overall application.
• Writing entities in Scala and Java along with named queries to interact with database.
• Writing scala classes to interact with the database.
• Written Kafka Producer and Consumer code to collect events from various sources and store it in HDFS.

Environment: Hadoop 2.6.2, Java 1.7, Eclipse, Cloudera (CDH 4.3.2), MapReduce, Sqoop, Hive and Pig.

Confidential, Florida

Software Developer

Responsibilities:

• Responsible for understanding the scope of the change request and requirement gathering.
• Responsible for developing detailed functional specifications and be a key part of the user acceptance phase of an engagement by extensive interaction with the client.
• Act as an interface between client, business heads and the technical team where functional / process knowledge is key to developing specifications.
• Involved in Use Case modeling, Use Case Reviews, Design Reviews
• Responsible for answering queries / helping teams understand functional requirements of a project by syndicating appropriate prototypes / documentation.
• Created IDD/DDD/LDD/STP for a change request.
• Support project teams in user testing / acceptance and deployment phase of the projects.
• Performed GAP and Risk analysis of existing system and evaluated benefits of new system.
• Prioritized outstanding defects and system problems, ensuring accuracy and deadlines were met.
• Developed Resources using Spring with Rest API
• Configured Resources as beans in spring configuration file using DI
• Tested Resources using Postman plug in and SOAP UI.
• Developed resources using Spring with REST.

Environment: Java 1.7, Eclipse, Spring 2.5, Hibernate, VAX VMS, Web Services, AXIS 2, Apache CXF, RESTfull Web Services and Tomcat 7.0

Confidential

Software Developer

Responsibilities:

• Involved in designing and implementation of MVC design pattern using Spring framework for Web-tier.
• ImplementedSOAbased web services, designed and builtSOAPweb serviceinterface, implemented usingSOAP &ApacheAxis.
• Developed business components and configured as beans using Spring DI.
• Made proficient use ofWSDLfiles. UsedSOAPUIfor testing the web services.
• Involved working onOracleat the back-end.
• Involved in developing Unit test framework usingJUnit. Written JUnit test cases for every java class.

Environment: Java 1.5, Spring, Web Services, Tomcat 5.0, Oracle 10g, and XML

Confidential

Software Developer

Responsibilities:

• Responsible for all aspects of software development including requirements, design, coding, testing and maintenance.
• Analyzed BRD (Business Requirement Document) for the QW (QuickWin) and given estimation (FPQ - Fixed Price Quote) for impact analysis, design, development and testing.
• Analyzed IMACS (Insurance Management And Claims System) application which is developed by JAVA, Struts and EJB for QW development.
• Developed DDD for each QW based on the application analysis.
• Written pseudo code and unit test cases for the QW.
• Developed QW by using JAVA, Struts, EJB and UNIX Shell.
• Tested the developed application in locally based on the test cases.
• Participated Kick-Off calls for the QW with related QW Business Analyst before estimation.
• During the development, closely worked with the onsite tech leads for technical implementation of the QW.
• Closely worked with other development team for sharing the project information.

Environment: Java, Swings, EJB, Struts, UNIX, Clear Case, UNIFACE and Oracle 10g

Confidential

Software Developer

Responsibilities:

• Development and implementation for different releases before and after implementation of launch.
• Monitor the running of the rating processes
• Develop automation scripts for rating processes in UNIX shell
• Check call rejects on a daily basis and recycle the rejected CDRs
• Module implementation and customization based on the Change Requests
• System integration test planning and execution for the newly developed/implemented modules
• Configuration of new product plans and services for GSM-Voice, GSM-Data, Mobile TV, GPRS, Fixed Line and Internet
• Monitoring the Credit Check processes and actions on subscribers.

Environment: BSCS iX Billing, Oracle 9, Quality Center, UNIX &TOAD

Confidential, Dallas

Software Developer

Responsibilities:

• Liaising the client for capturing requirements and redressing issues.
• Analyzing the system and preparing technical documents as per client’s requirements
• Integrated code with Hibernate, Java and Oracle 9i
• Front-end GUI in Struts for monitoring the updates and correcting broken values.
• Integrating Log4j for logging all the system level errors
• Reviews the Test Plans, Test Cases and Test scenarios and suggesting appropriate changes
• Preparing the Test cases and Status reports.

Environment: Java, Struts, Hibernate, XML, Oracle 9i, Log4j, UNIX.