SUMMARY:

• Over  9+ years of strong experience with Hadoop Ecosystem and Java/J2EE technologies
• Sun Certified Java Programmer with good understanding of Object Oriented concepts
• 3+ years of experience with Big Data technologies like HDFS, Map Reduce(yarn), Apache Pig, Hive, Sqoop, HBase, and Oozie
• Good understanding/knowledge of Hadoop architecture and its various components.
• 6 years of experience with Java/J2EE technologies like JSP, Servlets, Java Scripts, Struts, JSTL, Spring Framework
• Developed Proof of concepts for enterprise applications using Scala
• Data Warehouse experience using Informatica Power Center as ETL tool
• Proficient with both Waterfall and Agile software development methodologies
• Worked exceptionally well with the functional users and client management for requirements analysis, problem definition and solutions development
• Ability to quickly master new concepts and applications.
• Extensive working experience in JAVA.
• Excellent communications skills. Adept at building strong working relationships with coworkers and management.
• Currently Working on Big Data Hadoop projects using MapReduce, YARN, PIG, HIVE, Sqoop, Oozie, HBase, Zookeeper, Cloudera CDH 4, and MRUnit for unit testing.
• Excellent communications skills. Adept at building strong working relationships with coworkers and management.
• Excellent client - facing, negotiation & conflict resolution skills; a highly motivated self-starter and team-player interacting effectively with stakeholders to translate business requirements into IT deliverable.
• Strong problem solving skills, good communication and good team player.
• Practiced in clarifying business requirements, performing gap analysis between goals and existing procedures/skill sets, and designing process and system improvements to increase productivity and reduce costs.

TECHNICAL SKILLS:

Hadoop/ Big Data: HDFS, Map Reduce, PIG, HIVE, HBASE, OOZIE, SQOOP,HBASE, SPARK-Scala,

Java/ J2EE: Java, JavaScript, JSP, SQL, HTML, J2EE, Spring MVC, SOAP and RESTFUL Web Services

Job Schedulers: Redwood

ETL Technologies: Informatica

Software: Eclipse, Clear Case, Toad, IBM Rational Performance Tester, NetBeans, SQL Developer, Clear Quest, BuildFarm

Databases: IBM DB2, Oracle

OS: Windows, UNIX/LINUX

Servers: Weblogic, Tomcat

Visualization Tools: Hyperion, OBIEE

PROFESSIONAL EXPERIENCE:

Confidential

Hadoop developer & Team lead

Responsibilities:

• Analyze or transform stored data by writing MapReduce based on business requirements
• Good experience in using SQOOP for handling data transfer from RDBMS to Hadoop and Vice-versa
• Analyzing/Transforming data with Hive and Pig
• Involved in loading data from LINUX file system to HDFS.
• Experience working on processing unstructured data using Pig
• Involved in developing Hive DDLs to create, alter and drop tables
• Developed Pig Latin Scripts for users for regular analysis of industrial data
• Developed Hive scripts for end user / analyst requirements to perform ad hoc analysis
• Very good understanding of Partitions, Bucketing concepts in Hive and designed both Managed and External tables in Hive to optimize performance
• Developed Oozie workflow and coordinators for scheduling and orchestrating the Apache Hadoop Jobs in the ETL process of the application
• Managed and created tables in HBASE - NoSQL database
• Involved in coding UNIX shell scripting for transmitting the files from client system to Unix server
• Loading from disparate data sets, and high-speed querying
• Created internal and external tables with properly defined static and dynamic partitions for efficiency
• Experienced in defining job flows.
• Involved in managing and reviewing Hadoop log files
• Developed Custom UDFs in PIG
• Prepared shell scripts for executing Hadoop commands for single execution
• Enabled speedy reviews and first mover advantages by using Oozie to automate data loading into the Hadoop Distributed File System and PIG to pre-process the data
• Collaborated with the infrastructure, network, database, application and BI teams to ensure data quality and availability
• Used Zookeeper for various types of centralized configurations.
• Tested the data coming from the source before processing.
• Tested and solved the critical problem faced into project.
• Managing data from various file system to HDFS using Unix command line utilities

Environment: Java, shell scripting, Hadoop, MapReduce, HIVE, Sqoop, Oracle, Eclipse, WinSCP, Putty, Jira, PIG, HDFS, Oozie, Zookeeper, UNIX, Apache Hadoop, Shell Scripting.

Confidential

J2EE & Informatica Developer

Responsibilities:

• Created mappings and sessions to implement technical enhancements for data warehouse by extracting data from sources like DB2 and Delimited Flat files
• Effectively used Informatica parameter files for defining mapping variables, workflow variables, FTP connections and relational connections
• Junit Test case preparation and execution
• Development of core functionalities in Java for different reports in application
• Consume Restful web services using Spring Integration techniques
• Integration of application with Spring MVC Framework for layered architecture
• Development of Java code to integrate application with Toyota security services
• Creation of UML diagrams like Class and Sequence diagram for modules
• Conducting Brainstorming session among developers and validating the design and approach
• Designing of DB2 tables and procedures for new requirements
• Implemented Log4j for logging mechanism
• Development of UNIX shell scripts to extract data from database on periodical basis using Redwood scheduler.
• Supporting the application for all production issues and helping the business users to complete their process on time
• Participating in all business discussions and decision making
• Responsible for Web Services configuration and Testing
• Developed SQL statements to improve back-end communications
• Worked in writing commands using UNIX,Shell scripting.
• Involved in developing other subsystems' server-side components
• Developed user interfaces using JSP, HTML, XML and JavaScript.
• Generated XML Schemas and used XML Beans to parse XML files
• Created Use case, Sequence diagrams, functional specifications and User Interface diagrams using Star UML.
• Involved in complete requirement analysis, design, coding and testing phases of the project.

Environment: Java/J2EE, Spring Framework, Eclipse, JavaScript, DB2, UNIX, FileZilla, Squirrel and Restful Web Services, Informatica, Log4j, SQL, JSP, HTML, XML and JavaScript.

Confidential

Java Developer

Responsibilities:

• Requirement analysis and preparation of Requirement Traceability Matrix.
• Impact Analysis and Effort estimation.
• Detailed Design of application and database and creating Application Design Document.
• Coding the complex module in the application and Unit Testing.
• Coordinating with all module developers and helping in integration as a lead.
• Defect Prevention Controller
• Code Review and logging the comments in the defect tracker.
• Coordinating with testing team for their smooth testing and defect logging
• Worked in writing commands using UNIX,Shell scripting.
• Involved in developing other subsystems' server-side components
• Developed user interfaces using JSP, HTML, XML and JavaScript

Environment: Java/J2EE, Spring Framework, Eclipse, JavaScript, Oracle, UNIX, FileZilla, JSON, FLEX and TOAD, JSP, HTML, XML and JavaScript.

Confidential

Java Developer

Responsibilities:

• Managing Defect Prevention Analysis for the entire project.
• Detailed Database and application design.
• Analyze the support tasks which were filed by the customer and provide a solution for the same by fixing it.
• Carry out Root Cause Analysis for the escalated bugs.
• Perform unit testing of all the defects being fixed and support tasks.
• Experience leading teams, serving as technical and project lead, contributing to project planning and estimation, conducting design and code reviews, mentoring Configuration Controller
• Created Use case, Sequence diagrams, functional specifications and User Interface diagrams using Star UML.
• Involved in complete requirement analysis, design, coding and testing phases of the project

Environment: Java/J2EE, Spring Framework, Eclipse, JavaScript, Oracle, UNIX, FileZilla and TOAD,

Confidential

Java Developer

Responsibilities:

• Addressing the issue raised during testing and fixing the same.
• Designing the format and the layout for Interface
• Detailed Database and application design
• Defect Prevention Controller
• Manage the tasks and Coding the application according to the design
• Unit and Integration test case preparation and execution

Environment: Java/J2EE, Spring Framework, Eclipse, JavaScript, Oracle, UNIX, FileZilla and TOAD.