SUMMARY:

• Around 12 years of extensive IT experience with Software analysis, design, development, testing, deployment and maintenance.
• Extensive experience in JAVA, J2EE, Spring, JMS and Web Services technologies.
• Around 4 years of experience in Hadoop Ecosystems.
• Experience with Hadoop Ecosystem: Hortonworks 2.3,CDH 5.7.1, HDFS, MapReduce, YARN, Sqoop, Flume, Oozie, Pig, Hive, Scala, HBase, MongoDB, 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, SOAP UI and Postman.
• Experience in build tools, Ant and Maven.
• Knowledge
• Proficient in development methodologies such as Agile, Scrum, Waterfall and Kanban.
• Having knowledge on Microservices.
• 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, Apache Phoenix and Storm

Operating Systems: Windows & Linux

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

Frameworks: Struts, Spring and Hibernate

Web Technologies: HTML, JSP, CSS, JavaScript

IDEs: Eclipse, IBM Web Sphere

WebServers /App Servers: Apache Tomcat 6.0/7.0, IBM WebSphere 6.0/7.0, WebLogic and JBoss 4.3

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

Test Management Tool: Quality Center, BugZilla, JIRA, JMeter

Other tools: Jenkins, Puppet, Sonar Qube, Ansible, GoCD, Rally, GitHub

PROFESSIONAL EXPERIENCE:

Confidential, Denver

Java and Big Data Consultant

Responsibilities:

• Understand the business needs and objectives of the system and interacted with the end client/users and gathered requirements for the integrated system
• Adding new functionalities to Scout applications using Java and HBase
• Responsible for migrating Scout GUI application from Oracle to HBase(NoSQL) database.
• Responsible for importing the data from Oracle to Hive using Sqoop.
• Responsible for moving the data from Hive to HBase/Apache Phoenix.
• Responsible for HBase and Apache Phoenix performance optimization.
• Responsible for managing the Cloudera distribution system.
• Responsible to change the existing Java code to in line with HBase/Apache Phoenix.
• Responsible for analyze the existing database design and create new tables in HBase/Apache Phoenix.
• Implemented SnmpV3 fuctionality
• Implemented vCMTS functionality.
• Worked on RESTful WebServices.
• Worked most of the components in Scout, for example: Scout GUI, Xtrem Services, Pollers and Legacy Services.

Environment: Java 1.8, JSP, Java Script, JQuery, WebServices, REST, JMeter, Eclipse, Maven,Sonar Qube, Rally, Github, Jenkins, Puppet, SQuirrel SQL, GoCD, Hadoop 2.6.0, Cloudera (CDH 5.7.1), Hive, Sqoop, HBase, Apache Phoenix, Zookeeper, Spring Batch, Spring Boot, ElasticSearch, Logstash, Filebeat and kibana, MySql and Oracle.

Java/Big Data 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 in writing queries of Hive optimization techniques.
• Involved writing Pig Latin for data Processing as per Use cases
• Import data from various data sources, performed transformations using Spark and loaded data into HDFS
• Written Kafka Producer and Consumer code to collect events from various sources and store it in HDFS.

Environment: Hadoop 2.6.2, Java 1.8, Eclipse, Spring and WebServices Cloudera (CDH 4.3.2) and Big Data technologies like HBase, MapReduce, Sqoop, Hive, Pig,.

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, VAX VMS,Web Services, AXIS 2, Apache CXF, RESTfull WebServices andTomcat 7.0

Software Developer

Responsibilities:

• Involved in designing and implementation of MVC design pattern using Spring framework for Web-tier.
• Implemented SOA based web services, designed and built SOAP web service interface, implemented using SOAP &Apache Axis.
• Developed business components and configured as beans using Spring DI.
• Made proficient use of WSDL files. Used SOAPUI for testing the web services.
• Involved working on Oracle at the back-end.
• Involved in developing Unit test framework using JUnit. Written JUnit test cases for every java class.

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

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

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

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.