SUMMARY

• Around 9 Years of professional IT experience with full project lifecycle development in Hadoop/ Java/J2EE/Site Minder.
• Exposure to all phases of the software development cycle (SDLC), AGILE SCRUM methods.
• Experienced in a variety of technologies (Big Data, Hadoop, Identity - Access Management, Databases and Web/Application Servers).
• Experienced in complete Software Development Life Cycle; from inception of idea, requirement gathering, system design, document reviews, coding, code reviews, unit testing, system testing, product delivery and Product maintenance on varying computer architectures including Storage domain.
• Experienced in data analysis using Hadoop and extensive experience in writing map reduce jobs in java and hive UDFs.
• Experienced in developing SSO (Single Sign On) using CA Siteminder, Tivoli.
• Proficient in using OOPs Concepts (Polymorphism, Inheritance, Encapsulation) etc
• Used Design Patterns like MVC (Model-View-Controller) and Singleton, Factory etc.
• Experience using XML, XML parser.
• Experience J2EE Frameworks like Hibernate 4.0, Struts2 and Spring IOC/AOP3.0.
• Experience in creating and maintaining the requirements definition documents that included Business requirements and Functional requirements.
• Defining Test Cases, analyzing bugs, interaction with team members in fixing errors, Unit testing and User Acceptance Testing (UAT).
• Exceptional problem solving skills and ability to quickly adapt to new challenges.
• Excellent hands-on experience in Unit testing, Integration Testing and Functionality testing.
• Flexible and always open to learn new technologies at fast pace.
• Involved in fixing UI and performance related issues.
• Identified performance bottlenecks, refactor and re-implement for improved performance while supporting existing functionalities.

TECHNICAL SKILLS

BigData Ecosystem: Hadoop/HDFS, MapReduce, Hive, Pig, Sqoop, oozie scheduler, Flume, HBase, impala, Zookeeper.

Languages: Core JAVA/ J2EE, Spring IOC 3.0, Spring MVC3.0, Hibernate4.0, JPA,Struts2, JSP,JSF, Javascript, JQuery, XSLT, XML, HTML, Rational Rose

Identity Management: Sun-Identity Manager 5.x, 6.x I, Kerberos authentication.

Scripting Languages: JavaScript, Shell Scripts

Conceptual Knowledge: Polymorphism, Threads and Multi-Threading, Operator/Function Overloading, Design Patterns.

Operating System: UNIX, Windows.

Data Base: Oracle, Mongo DB, MySQL

PROFESSIONAL EXPERIENCE

Confidential, Englewood, CO

Hadoop Java/J2ee Developer

Responsibilities:

• Performed sqoop imports of data from Data warehouse platform to HDFS and built hive tables on top of the datasets.
• Built ETL workflow to process data on hive tables
• Used HUE to create oozie workflows to perform different kinds of actions such as hive, java & Mapreduce.
• Worked extensively in Hive used features like UDF and UDAFs.
• Used sequence and avro file formats and snappy compressions while storing data in HDFS.
• Used Efficient Columnar Storage like parquet for data used by business.
• Worked extensively in MapReduse using Java. Well versed with features like multipleoutput in Mapreduce.
• Worked on features like reading a hive table from Mapreduse and making it available for all datanodes by keeping in distributed cache.
• Used both Hue and xml for oozie
• Participated in building CDH4 test cluster for implementing Kerberos authentication.
• Installing cloudera manager and Hue.
• Pivoting table to store in Cassandra.

Environment: Hadoop, CDH4, Hue, Mapreduce, hive, pig, squoop, oozie, impala, column oriented database Cassandra, NoSQL, Spring MVC3.0, core java/J2EE, JSON, Netezza, Maven, SVN, Eclipse.

Confidential, Cupertino, CA

Senior Core Java/J2ee Developer

Responsibilities:

• Designing Web Services using REST in Struts architecture, Core Java, JSP, Java Script, JQuery, Servlets, ANT, SVN and XML within a OSX environment for xcode.
• Worked on enhancements on Admin toll presentation and business layer.
• Made required changes to Java applications persistence layer which map business objects in the model tier to tables in an Oracle database using Hibernate, JPA.
• Extensively involved in java coding.
• Working on NOSQL database as MongoDB.
• Technical support for infrastructure and programming for ASP, JSP, JSF, Servlets applications.

Environment: core java/J2EE, Struts 3.0, MapReduce, JS2.2, JSON, JSP, Hibernate3.1, Java 1.5,Javascript, JQuery, OSX10.8.3,REST, Oracle 11g, SQL/PL SQL, Mongo DB, Tomcat webserver, JBoss Application server, Hadoop, Hive.

Confidential, Atlanta, GA

Senior Core Java/J2ee Developer

Responsibilities:

• Designing SSO page using Spring MVC architecture, Core Java, JSP, JSF, Servlets, ANT and XML within a Windows and UNIX environment
• Made required changes to Java applications persistence layer which map business objects in the model tier to tables in an Oracle database using JDBC and Hibernate, JPA.
• Extensively involved in java coding.
• Framed rules, realms, policies, Authentication schemes for intranet and internet facing B2B applications
• Assisting application teams in SSO enabling their application.
• Designed and deployed high availability login page server infrastructure for SSO applications on Iplanet web server.
• Worked with Directory server and giving administration support.
• Technical support for infrastructure and programming for ASP, JSP, Servlets and Lotus Domino Applications.
• Communication with businesses on weekly, monthly reports, call volume managements.
• Managing 100 % SLA Compliance for high call volumes and escalations.
• Communication and follow up with third party vendors for any case beyond the scope.
• Provided production and mission critical support for more than 200 Confidential Insurance production applications to run 24 x 7 on SSO. Setting up and maintaining Single Sing On environment for Confidential Insurance across the globe.
• Bug fixing and implementation of change request.
• Infrastructure and application enabling support to setup / maintain Policy Servers, User Stores and help application development team to integrate applications to SSO infrastructure.
• Analysis of specifications provided by client.

Environment: core java /J2EE, spring MVC 3.0, Hibernate 3.0, JavaScript, JQuery, CA Site Minder 6.0, Java 1.4.2, iPlanet Directory Server 5.1, Windows 2000, Oracle, SQL/PL SQL, NoSQL, Tomcat webserver.

Confidential, Philadelphia, PA

Senior Core Java/J2ee /Site Minder Developer

Responsibilities:

• Analysis of the specifications provided by the clients
• Preparing Detail Design Document
• Design and develop functional & technical specifications using OO Methodology.
• Worked with team members to identify and map detailed current processes, identify gaps and failure points, perform root cause analysis and develop functional requirements that supported overall strategy, goals and objectives.
• Designed and developed Multi-Threaded applications using Java on UNIX and Windows.
• In presentation layer, provided data for front end using Spring IOC/AOP and JavaScript.
• Developed UI using MVC architecture, Core Java, Java Collections, JSP, JDBC, Servlets, ANT and XML within a Windows and UNIX environment.
• Used Java Collection Classes like Array List, Vectors, Hash Map and Hash Table.
• Used Design Patterns MVC, Singleton, Factory, Abstract Factory.
• Involved in setting up integration and testing environments on VMware and stand alone systems, fixing system test defects and performance improvement
• Coordinating offshore and onshore teams and distributing work among the team.
• Co-ordinate with different IT groups.

Environment: core java /J2EE, Spring IOC/AOP, Polymorphism, Threads and Multi-Threading, Operator/Function Overloading, STL’s, Data Structures, Virtual Functions, Oracle, SQL/PL SQL, Tivoli.

Confidential, Atlanta, GA

Senior Core Java/J2ee /Site Minder Developer

Responsibilities:

• Installation of Web Logic Software.
• Developed Modules using Casper Framework
• Customized GEPS Energy application Enhancements.
• Web based interfaces Java and JSP.
• Create Database.
• Running DB Scripts like Functions, Procedures and SQL Queries.
• Designed and developed the system using Java, MVC, XML.
• Developed GUI using Java.
• Designed the XML format to exchange Data back and forth between front end, middleware and Backend. DTD was written to define XML data.
• Developed algorithms and coded programs in Core Java.
• Added Data Validation and Exception Handling using Java APIs.
• Worked closely with engineers from Provo, USA on knowledge transition.
• Written various Unix Shell Scripts to automate business process.
• Involve in Daily Stand-ups and SCRUM planning meetings.
• Co-ordinate with different IT groups and Customer.
• Fixing system test defects.
• Involved in setting up integration and testing environments.
• Help resolve customer issues in a timely fashion.

Environment: core java, Struts2, Polymorphism, Threads and Multi-Threading, Operator/Function Overloading, STL’s, Virtual Functions, XSLT, XML, Oracle, SQL/ PL SQL.

Confidential, Atlanta, GA

Senior Core Java/J2ee / Waveset Lighthouse 6.x (Sun IDM)

Responsibilities:

• Involved in requirement gathering, functional and technical specifications.
• Monitoring and fine tuning IDM performance
• Enhancements in the self-registration process.
• Fixing the existing bugs in various releases
• Global deployment of the application and co-ordination between the client, Confidential team, development team and the end users.
• Training the administrators’ worldwide.
• Setting up of the users by reconciliations, bulk load and bulk link in all the environments.
• Wrote requirements and detailed design documents, designed architecture for data collection.
• Developed OMSA UI using MVC architecture, Core Java, Java Collections, JSP, JDBC, Servlets, ANT and XML within a Windows and UNIX environment.
• Used Java Collection Classes like Array List, Vectors, Hash Map and Hash Table.
• Used Design Patterns MVC, Singleton, Factory, Abstract Factory.
• Developed algorithms and coded programs in Java.
• Co-ordinate with different IT groups and Customer.
• Performed all types of testing includes Unit testing, Integration and testing environments.
• Used Combination of client and server side validation using Struts validation framework.
• Fixed system test defects.

Environment: core java, Struts2, Waveset Lighthouse 6.x (Sun IDM), Polymorphism, Threads and Multi-Threading, Operator/Function Overloading, STL’s, Virtual Functions, Rational Rose, Design Patterns, Oracle, SQL/ PL SQL.

Confidential

Senior Core Java/J2ee /Site Minder Developer

Responsibilities:

• One central user store eliminates redundancy and inaccuracy
• Reduced account management and overall Database maintenance efforts
• Username / password changes reflected instantly across all applications
• Reduced help desk support
• Faster/better application development focused on delivering functionality versus user maintenance
• Improved Security
• Creates common processes while give each Confidential business autonomy and flexibility
• Responsibilities:
• Analysis of specifications provided by client.
• Design and development of SSO enablement for intranet, B2B, B2C applications for global businesses.
• Framed rules, realms, policies, Authentication schemes for intranet and internet facing B2B applications
• Assisting application teams in SSO enabling their application

Environment: CA Site Minder 6.0, Java 1.4.2, iPlanet Directory Server 5.1, Windows 2000, Linux, Oracle, SQL/ PL SQL.