SUMMARY:

• Around 9+ years of Professional experience in IT Industry, involved in Developing, Implementing, configuring, testing Hadoop ecosystem components and maintenance of various web based applications.
• Around 5 years of IT Industry Experience ranging from Big Data tools like Hadoop.
• As a Tech Lead supervised a team of 5 - 8 engineers and help them in maintain their quality of service by reviewing their work and providing constructive feedback.
• Understands the complex processing needs of big data and have experience developing codes and modules to address those needs.
• In-depth understanding of MapReduce and the Hadoop Infrastructure.
• Vast experience with Hadoop eco systems such as HDFS, MapReduce, Yarn, Pig, Hive, Hbase, Oozie, Zookeeper, Sqoop, Impala, Kafka.
• Excellent Experience in Hadoop architecture and various components such as HDFS, Job Tracker, Task Tracker, NameNode, Data Node, Application Master, Resource Manager, Node Manager and MapReduce programming paradigm.
• Experience in analyzing data using Hive, Pig Latin, HBase and custom Map Reduce program.
• Good Exposure on Apache Hadoop Map Reduce programming PIG Scripting, Distribute Application and HDFS.
• Expertise in optimizing traffic across network using Combiners, joining multiple schema datasets using Join and organizing data using Practitioners and Buckets.
• Experience in working with different file formats and compression techniques in Hadoop.
• Expertise in extending Hive and Pig core functionalities by writing custom User Defined Functions (UDF).
• Handle the TEXT, JSON, XML, Sequence file, Parquet data using Hive (SERDE), Pig and filter the data based on query factor.
• Strong Knowledge in Hive and Hive's analytical functions.
• Hands on experience in job workflow scheduling and monitoring tools like Oozie and Zookeeper.
• Capturing data from existing databases that provide SQL interfaces using Sqoop.
• Efficient in building hive, pig and map Reduce scripts.
• Experience with Oozie Workflow Engine in running workflow jobs with actions that run Hadoop Map-Reduce and Pig jobs.
• Expertise with NoSQL databases such as Hbase.
• Good Knowledge on Hadoop Cluster architecture and monitoring the cluster.
• Expertise in writing queries on Splunk tool to see the history data and trending.
• Experience in managing and reviewing Hadoop log files.
• Hands on experience on Devops tools like GitHub, Jenkin, Maven, Chef, Solar and used in Hadoop Usecases for deployments.
• Proficient in using various IDEs like Eclipse, My Eclipse.
• Expertise in using the Service Now tool for creating Incidents, Problems, Knowledge Articles, Change Requests.
• Hands on experience in build management tool Maven and Ant.
• Involved in Hadoop testing.
• Hand on experience on UNIX scripting.
• Expertise in creating technical documents and user manuals. Used confluence as document repository.
• Hands on experience in application development using Java, RDBMS and Linux shell scripting.
• Scripting to deploy monitors checks and critical system admin functions automation.
• Experience in database design using Stored Procedure, Functions, Triggers and strong experience in writing complex queries for Oracle.
• Good knowledge of J2EE design patterns and Core Java design patterns.
• Expertise in using Version Control systems like SVN, Jenkins, GIT HUB.
• Expertise in J2EE technologies like Servlets, JSP, Struts, Hibernate, EJB and JDBC.
• Hands on experience with SPARK to handle the streaming data.
• Good knowledge of stored procedures, functions, etc. using SQL and PL/SQL.
• Expert in SQL, PL/SQL, Developer 6i/9i (Forms 6i/9i/10g/Reports 6i/9i/10g), Workflow Builder 2.6, SQL* Loader, Shell Scripting etc.
• Self-motivated and able to manage workload efficiently and effectively.
• Presented multiple Show and Tell sessions to client on Hadoop use cases. .

TECHNICAL SKILLS:

Big Data: MapReduce, Pig, Hive, Sqoop, HBase, Oziee,Kafka, Zookeeper, yarn.

Programming Languages Core java, UNIX Shell Scripting, SQL, Knowledge on Scala.

J2EE Technologies: JSP, Servlets.

Frameworks: Struts, JUnit.

Client Technologies: Java Script, AJAX, CSS, HTML 5.

Operating Systems: UNIX, Windows, LINUX.

Web technologies: JSB, Servlets, Socket Programming, JNDI, JDBC, JavaScript.

Databases: Oracle 8i/9i/10g, MySQL 4.x/5.x.

Java IDE: Eclipse.

Tools: Oziee, Hue, SQL Developer, ANT, Maven, Jenkins, Git Hub, Splunk, Confluence.

No Sql Databases: HBase.

PROFESSIONAL EXPERIENCE:

Confidential, Phoenix, AZ

Technical Lead

Responsibilities:

• Involved in development and monitoring of Hadoop usecases.
• Handled importing of data from various data sources, performed transformations using Hive, Map Reduce and loaded data into HDFS.
• Exporting the Data from Hadoop to HBase for Real Time Applications using HBase Java APIs.
• Stored, Accessed and Processed data from different file formats i.e. Text, ORC and Parquet.
• Involved in creating Hive Tables, loading with data and writing Hive queries.
• Load the xml files to HDFS and then process with Hive.
• Loading the data to Hbase Using Java API's.
• Performance tuning the Hive, Pig queries.
• Developed UDF's to implement complex transformations on Hadoop.
• Worked on optimizing Shuffle and Sort phase in Map Reduce Phase.
• Supported Map Reduce Programs those are running on the cluster.
• Managing and reviewing Hadoop log files to identify bugs. scheduling Oozie workflow and Spring Batch for configuring the workflow for different jobs like Hive, Mapreduce, Shell
• Written Shell scripts to start the usecase and for pre validations.
• Automated all the jobs for pulling data from FTP server to load data into Hive tables using Oozie workflows
• Monitored and scheduled the UNIX scripting jobs
• Actively involved in code review and bug fixing for improving the performance
• Developed and optimized Pig and Hive UDFs (User-Defined Functions) to implement the functionality of external languages as and when required
• Managed, reviewed and interpreted Hadoop log files.
• Co-ordinate with Administrator team to analyze Map Reduce Jobs performance for resolving any cluster related issues.
• Expertise in platform related Hadoop Production support tasks by analyzing the job logs.
• Co-ordinate with different teams to determine the root cause and taking steps to resolve them.
• Responsible for continuous Integration with Jenkins and deploying the applications into production using XL Deploy.
• Managed and reviewed Hadoop log files to identify issues when job fails and finding out the root cause.
• Utilizing service now to provide application support for the existing clients.
• Load log data into HDFS using Kafka.
• Setting-up Kafka brokers, Producers and Consumers.
• Setting-up Data pipelines to hadoop with Kakfa.
• Created partitioned tables in Hive for best performance and faster querying.
• Managing and scheduling Jobs on a Hadoop cluster using Cron Tab, Oozie Scheduler, Event Engine(Inhouse Tool)
• Ensure the quality and integrity of data are maintained as design and functional requirements change.
• Develop and document design/implementation impacts based on system monitoring reports.
• Reduced number of open tickets for couple of usecases by analyzing, categorizing & prioritizing all open issues recorded. This required motivation of the offshore team & thoughtful delegation of workable tickets to the offshore resources to maximize on efficiency.
• Reduced response time to clients on issues reported in the production environment.
• Drafted support procedures to decrease client reported ticket/issue turnaround.
• Used the Service Now ITSM tool for creating Incidents, Problems, Knowledge Articles, Change Requests.
• Presented weekly status reports to client on usecase progress and issue tracker.
• Responsible to design Shift roster to the production support team.
• Guide offshore programmers assigned to the Production Support group.
• Conduct code reviews to maintain quality of code.

Environment: Linux, Hadoop, Hive, Hbase, GIT, Pig, Java, Kafka, Map Reduce, Sqoop.

Confidential

Hadoop/Java/Oracle Developer

Responsibilities:

• Hands on experience in application development using Java RDBMS and Linux shell scripting.
• Worked on SQOOP for Import/Export data into HDFS and Hive.
• Worked on handling data from different data sets, join them and pre-process using hive join operations.
• Experienced with Map-Reduce programs to aggregate the data
• Developed Hive queries to analyze data and generate results
• Managed, reviewed and interpreted Hadoop log files.
• Strong understanding of Hadoop eco system such as HDFS, MapReduce, HBase, Zookeeper, Pig, Hadoop streaming, Sqoop, Oozie and Hive
• Handled importing of data from various data sources, performed transformations using Hive, MapReduce, loaded data into HDFS and Extracted the data from Oracle into HDFS using Sqoop
• Implemented secondary sorting to sort reducer output globally in map reduce.
• Implemented data pipeline by chaining multiple mappers by using Chained Mapper.
• Created Hive Dynamic partitions to load time series data
• Experienced in handling different types of joins in Hive like Map joins, bucket map joins, sorted bucket map joins.
• Created tables, partitions, buckets and perform analytics using Hive ad-hoc queries.
• Actively participated in software development lifecycle (scope, design, implement, deploy, test), including design and code reviews.
• Expertise in generating reports using Oracle Reports10g meeting variety of Business needs including custom Reports.
• Modifying PL/SQL Packages, Procedures, Functions for data population and updating as per user requirements.
• Created custom templates with Data Definitions for XML Publisher and Developed reports using report builder and registered as XML reports in applications.
• Customized various XML reports by adding new fields, modifying template as per the business requirements.
• Responsible for creating an interface for Purchase Order upload, which creates PO from a CSV file.
• Designed and developed an Item Conversion program to import legacy inventory item data.
• Personalized many Oracle standard Forms as per the Client requirements.
• Designed wide variety of reports in Order Management with BI/XML Publisher.
• Developed many reports and designed to view output in different formats like PDF, EXCEL, RTF and HTML using BI/XML Publisher.
• Developed and customized complex XML reports by communicating and interpreting end-user business requirements.
• Developed various technical components like SQL, PL/SQL, Procedures, Functions, Packages, views, and materialized views, Collections for Forms, Reports, Interfaces and Conversions.
• Developed PL/SQL scripts to load data from external system to AP and AR interface tables.
• Documented all the above-mentioned processes with MD050 and MD070 using AIM methodology

Environment: Hadoop, Hive, Hbase, GIT, Pig, Java, Kafka, Map Reduce, Sqoop, OracleApps EBS R12, SQL, PL/SQL, Oracle Reports 10g, BI/XML Publisher, UNIX, SQL Developer.

Confidential

Java/J2EE Developer

Responsibilities:

• Implemented Hibernate for the ORM layer in transacting with MySQL database.
• Experience in event - driven applications using AJAX, Object Oriented JavaScript, JSON and XML.
• Good knowledge on developing asynchronous applications using Jquery.
• Good experience with Form Validation by Regular Expression, and jQuery Light box.
• Involved in design and Development of UI using HTML, JavaScript and CSS.
• Developed coded, tested, debugged and deployed JSPs and Servlets for the input and output forms on the web browsers.
• Designed and developed various data gathering forms using HTML, CSS, JavaScript, JSP and Servlets.
• Developed user interface modules using JSP, Servlets and MVC framework.
• Experience in implementing of J2EE standards, MVC2 architecture using Struts Framework
• Developed J2EE components on Eclipse IDE.
• Used JDBC to invoke Stored Procedures and used JDBC for database connectivity to SQL.
• Deployed the applications on Tomcat Application Server
• Created Java Beans accessed from JSPs to transfer data across tiers.
• Database Modification using SQL, PL/SQL, Stored procedures, triggers, Views in Oracle9i.
• Experience in going through bug queue, analyzing and fixing bugs, escalation of bugs.
• Involved in Significant customer interaction resulting in stronger Customer Relationships.
• Responsible for working with other developers across the globe on implementation of common solutions.
• Involved in Unit Testing.
• Design and development of front end modules with business logic.
• Preparing the Unit Test Cases, Involved in executing the test cases.
• Involved in Bug Fixing.
• Attending various conference calls to track project status

Environment: Java, JSP, Servlets, JDBC, Eclipse, Web services, Spring 3.0, Hibernate 3.0, MySQL, JSON, Struts, HTML, JavaScript, CSS

Confidential

Internship and Java/Oracle Apps Developer

Responsibilities:

• During my Internship I had several software trainings and done couple of POCs on Java/J2EE applications and Oracle Apps. After the Internship I have started working on OCA tool.
• Understanding the requirements and proposing better ideas where ever necessary.
• Developed the form personalization.
• Developed JSP’s and Java Script.
• Developed PL/SQL packages.
• Developed AOL objects.
• Involved in Bug Fixing.
• Written Oracle packages to make store data in to base tables.
• Implemented OCA Tool in Invoices, Purchase orders, Sales Orders.
• Used Oracle APIs to insert the attachments to Oracle database as objects
• Used Java Applets to call the hardware from the web interface.
• Developed UI using JSP and CSS.
• Done the oracle form personalization to call the JSP Page/Scanner from Oracle forms.
• Created custom objects like categories, data types, LOB objects for all new attachments.
• Created bundle as software kit for ready to install setups.
• Created user manual for OCA tool.

Environment: Oracle Apps Financials EBS R12, SQL, PL/SQL, Oracle, UNIX, SQL Developer, Java, JSP, CSS, Applets, Oracle forms.