SUMMARY

• Having over 12 Years of strong IT experience Designing, implementing and supporting technical solutions for Fortune 500 companies.
• Expertise in developing and Extensively worked on Distributed Programming with Java, J2EE technologies
• Expertise in developing and writing Hadoop MapReduce in Java, PIG and HIVE applications
• Experience in implementation of Open - Source frameworks like Spring, Hibernate, Web Services etc.,
• Varied experience in working on different domains like Telecom, Banking, Insurance and Financial Services
• Experience with databases such as Oracle 9i, Postgresql, MySQL Server with cluster setup and writing the SQL queries Triggers & Stored Procedures
• Experienced in Agile approaches, including Extreme Programming, Test-Driven Development.
• Exposure to Quality Control processes. Ensured the adherence of Quality compliance initiatives for the project
• Redesigned and refactored legacy systems into Object Oriented applications in Java and Web2.0
• Proficient in load testing, profiling, troubleshooting and performance tuning on application and DB level
• Communicated to diverse communities of clients at offshore and onshore, dedicated to client satisfaction and quality outcomes. Extensive experience in coordinating the Offshore Development activities
• Strong analytical, problem solving and troubleshooting skills, willingness and ability to quickly adapt to new environments and learn new technologies
• Excellent interpersonal skills backed up-by-sound professional ability to work independently as well as a team member.
• Highly organized and dedicated with positive Attitude, possess good time management and organizational skills with the ability to handle multiple tasks with positive attitude
• Possess effective command over written, verbal communication and presentation skills

TECHNICAL SKILLS

Advanced: Hadoop MapReduce, HDFS, HIVE, PIG, Core Java (JDK1.6), J2EE, JSP, Servlets, Spring framework (DI, AOP, ORM, MVC), RESTFul Services (Jersey framework), OOP, JDBC, Multi-Threading, Eclipse, WebLogic 9, Apache Tomcat 7, Gang of FOUR, J2EE Design patterns, Oracle 9i, MySQL, Postgres, ORM, RDBMS, PL/SQL, Solaris, Linux, Unix and Windows.

Experienced: BigData/NoSQL (HBase MangoDB), Hibernate, JavaScript, AJAX, JSON, CSS, HTML 5, JMS, EJB2, Swing AWT and JMS (Apache Active MQ)

Knowledgable: Struts 2, JQuery, C, C++, VC++

PROFESSIONAL EXPERIENCE

Sr Software Engineer

Confidential, San Jose

Responsibilities:

• Worked in Multi Clustered Hadoop Echo-System environment
• Analysing new requirements, preparation of feasibility study documents for major enhancements
• Designed and Developed MapReduce jobs in Java around 85 different subscribers and HTTP reports in MR4, MR4-ER1, MR4-ER2 and MR5 releases synchronizing with ASR5K standards
• Defined job flows, managing and reviewing Hadoop log files
• Load and transform large sets of unstructured data from UNIX system to HDFS
• Experienced in running Hadoop streaming jobs to process terabytes of CSV format
• Supported Map Reduce Programs those are running on the cluster
• Jobs management using Fair scheduler.
• Involved in loading data from UNIX file system to HDFS.
• Exporting data to POSTGRESql using sqoop
• Written PIG Scripts to analyse Hadoop logs
• Created Hive tables, loading with data and writing HIVE queries which will run internally in map
• Handled Service Request (SRs) and Queries from customers, MUR TAC team and ASR5K Line Managers, including Non-Business and Weekends/Holidays
• Participated in Project Planning and prioritization between, new requirements, enhancements, Bugs raised from the field and Customer queries and Preparation of Release Scheduling
• Performed Single Point of Technical Contact for different teams like TAC, DEV, QA, ASR5K Line Managers.
• Provided non-business and weekend/holidays technical support to various teams to support critical cases from the field
• Coordinating with Confidential Managers, ASR5K team, MUR TAC team to gather new requirements and converted them into Functional Specification documents

Environment: Hadoop MapReduce, HIVE, HDFS, Java (JDK1.6), Spring (IoC, AOP,), CSV files, Linux, Eclipse

Sr Software Engineer

Confidential, Illinois

Responsibilities:

• Designed and Developed MapReduce jobs for statistical analysis and reports of Charging gate Interface, BSC Interface, Gn, Gr interfaces using Java
• Loading SGSN log files to HDFS and analysing them through MapReduce using Java
• Created HIVE tables and loaded data into tables by writing HIVE queries
• Designing and developing new requirements and enhancements using Java, Spring, Hibernate, Hadoop, MapReduce, HIVE, RESTful Webservices, Multi-threading, JSP, Servlets, HTML, Java Script, JSP, JSF and Java Beans technologies
• Performing the role of Technical point of contact to handle customer escalations and work towards understanding the criticality and resolving the escalations in a timely manner
• Reporting deliverables status to line managers using appropriate tools

Environment: Hadoop MapReduce, HIVE, Java JDK(1.5), Spring, Hibernate, JSP, flat files (unstructured log files), Linux and Eclipse

Sr Software Engineer

Confidential, Illinois

Responsibilities:

• Designed and developed Hadoop (0.20) MapReduce jobs for DN2, DB2 and EKSOS nodes subscriber traffic reports and Packet Core usage reports
• Creating and loading data into tables using HIVE
• Enhanced the existing systems using Java, J2EE, JSP, Spring, Hibernate, Struts, JSP and Java Beans
• Designed and Developed DN2 cross connections, DB2 batching, EKSOS and Q3Stack modules using Spring, Hibernate, JSP, JavaScript, Servlets, CSS and XML
• Enhanced Cross connections vs path finding process using java multi-threading techniques for DN2, and DB2 nodes
• Enhanced Q3 stack values against EKSOS NM sync-up using threading concepts
• Involved in requirements gathering and designing, server side coding using Spring and Hibernate, DAO, Actions, Filters, Handlers and JSP’s using HTML, CSS, JavaScript and Ajax
• Worked on performance tuning the database by tuning queries, creating indexes, stored procedures
• Involved in design for major enhancements to the existing systems
• Written Approach Notes documents for all NM upgrades and Client specific Re-Branding activities
• Helping manager in handling risk assessment and subsequently created contingency and mitigation plans
• Ensured the resolution of queries, Incidents, and bugs within agreed SLA time frame
• Ensured client satisfaction by giving support during odd hours & holidays
• Planned and implemented project plan to facilitate the definition of project scope, goals and deliverables, and defined project tasks
• Tracked project deliverables at all milestones defined for the project.
• Always set and met realistic deadlines. Forecasts changes and communicates current and projected issues

Environment: Hadoop MapReduce, Java, JSP, Struts, Spring, Hibernate, Oracle8i, WebLogic 9, Eclipse, Linux, Solaris.

Software engineer

Confidential

Responsibilities:

• Participated in re-design of the application using Java, JSP, Servlets, RESTFul WebServices, Java Beans, XML, AdvantNet SNMP and MySQL technologies.
• Written Implementation proposals with design alternatives for ENUM+ and IPWorks 5.0 upgrade work packages and configured MySQL Cluster with 4 Solaris Systems and Integrated with IPWorks.
• Using existing architecture designed and developed new ENUM+ objects.
• Designed and developed ENUM+ objects storage in MySQL cluster synchronizing with DNS Server using java multi-threading concepts
• Performed extensive work for MySQL Cluster migration (InnoDB database engine to MyISAM database engine)
• Was involved in fixing critical Trouble Reports in different work packages and Solved legacy problems came from 4.2 (a previous version of IPWorks), got solved quickly like SNMP alarms.
• For my outstanding work I was awarded with "Feather in My Cap” award.

Environment: Core Java, Java Beans, JSP, Solaris, Apache Tomcat and MySQL, AdventNet SNMP

Project Engineer

Confidential

Responsibilities:

• Worked extensively on Re-Designing and coding of CLI Parser in JavaCC with new grammar file.
• Developed the module to bypass COBRA module and use UDP to communicate with NMs and integrated with existing system.
• Involved in all client presentations, team meetings and technical discussions.

Environment: Java, JavaCC, TimesTen DB, CORBA and Solaris.

Project Engineer

Confidential

Responsibilities:

• Developed Stateless Session Beans for investment transactions module (ITM) based on Detail Design Document
• Developed interfaces to communicate with stateless session beans for ITM, and JSPs, Servlets and JavaBeans
• Developed DataAccessObjects, DelegateObjects, ValueObjects, ActionClasses for ITM
• Developed stored procedures and SQL queries for ITM

Environment: Java, JSP, Struts, EJB, WebLogic, Oracle, XML

Project Engineer

Confidential

Responsibilities:

• Involved in discussions with other departments like Confidential Book Keeping to gather requirements
• Design RI E-Sub application using Java, JSP, Servlets and JavaBeans
• Written stored procedures and SQL queries in Sybase
• Co-ordination with other team members

Environment: Java, JSP, Apache Tomcat, Sybase, JDBC

Software Programmer

Confidential

Responsibilities:

• Handled bug fix activity for the bugs received from the field.
• Developed application modules using JSP, Servlets, Java Beans, Stateless Session Beans and CSS framework.
• Developed logger frame work to handle any types of errors and exceptions
• Developed stored procedures and SQL queries
• Co-ordination with other team members.

Environment: Java, JSP, EJB, WebLogic, Oracle, JDBC