SUMMARY

• Over 6 years of experience in Oracle database, SQL, PL/SQL, and SAS technologies involving database design, application development, implementation, quality testing, statistical analysis, and support.
• Involved in database design and data modeling to create ER diagram and database objects
• Experience of complete Software Development lifecycle (SDLC) process
• Experience in quality testing of data - warehouse objects, using a customized scripts based on in-house methodology.
• Experience in utilizing Bug tracking system JIRA, and co-coordinating with developers/managers and other QA members
• Proficient in writing stored and application procedures, packages, database triggers and functions using PL/SQL
• Experience in maintaining and developing database objects like tables, views, indexes, sequences, synonyms etc
• Experience in utilizing oracle analytical and decoding functions and dealing with multi-terabytes database
• Experience and knowledge of FTP transfer from UNIX to Windows and vice versa
• Developed Interactive User Interfaces using Forms 6i/9i and generated reports using Reports 6i
• Experience in writing Shell (Korn, Bash, C) and AWK scripts and have utilized crontab functionality
• Fundamental understanding of materialized views, replication, and external tables
• Experience utilizing dynamic SQL (dbms sql, Execute Immediate) functionality
• Developed SQL*Loader control programs to transfer external data into staging tables. Written PL/SQL validation scripts to transfer clean data from staging tables to production tables
• Utilized oracle advance features like Bulk Bind (Bulk collect, For all), Ref Cursor, and Index-By Tables.
• Generated Excel Reports using oracle supplied package UTL FILE for data analysis purpose
• Knowledge and experience of Data Analysis, Data Warehousing, and ETL Techniques
• Conceptual understanding of Data marts, OLAP, OLTP, STAR Schema, and Snowflake schema
• Expertise in Oracle 10g/9i/8i database server, forms 6i/9i and reports 6i/9i, and tools like SQL Plus, SQL Developer, TOAD, Data Loader, SQL * Loader, and RapidSQL
• Experience and knowledge of Apex 3.0, HTML, CSS, and JavaScript
• Good understanding of data mining concepts, ETL processes, and data modeling concepts such as design of the dataflow, ER Diagrams, Normalization and Denormalization of tables
• Experience and knowledge of SAS statistical software, used SAS/BASE, SAS macros, SAS/GRAPH, SAS/STAT for data and statistical analysis
• Involved in unit testing, functional testing, system testing, data validation, and user acceptance testing
• Experience in tuning complex SQL statements using Explain plan and SQL trace
• Strong Inter-personal, analytical, and problem-solving skills with proven ability to deliver excellent results in competitive environment

TECHNICAL SKILLS

Database: Oracle developer 11g/10g/9i/8i, Forms 10g/9i/6i Reports 10g/9i/6i, Oracle EBS 11i.

Programming Languages: PL/SQL, SQL, C, C++, VBA, SAS 9.0, MATLAB, AWK, HTML, CSS, DHTML, Shell Scripting

Operating Systems: Windows XP, 2000, VISTA, UNIX (Solaris, HP, AIX), LINUX

Communication tools: MS Outlook, Lotus Notes

Tools: Developer 2000, Forms & Report 6i/9i, SQL Plus, TOADSQL Developer, SQL*Loader, Informatica Power CenterEditPlus, RapidSQL, WinScp, Perforce, SharePoint, SubversionSQL Server Management Studio, FTP.

PROFESSIONAL EXPERIENCE

Confidential, Hoover, Alabama

Oracle PL/SQL Developer

Responsibilities:

• Involved in designing, developing, and testing of PL/SQL stored procedures, packages and triggers.
• Developed complex SQL and PL/SQL queries.
• Created database objects like Tables, views, synonyms, Indexes and .
• Used SQL*Loader to load data from external system and developed PL/SQL programs to dump the data form staging tables into base tables.
• Extensively wrote SQL Queries (Sub queries, correlated sub queries and Join conditions) for generating various kinds of reports as per the user requirement.
• Designed star schema using dimensional modeling and created fact tables and dimensional tables. Used Erwin for Logical and Physical database Modeling.
• Installation and configuration of Informatica Power Mart
• Used Informatica Designer (Power Mart) to create complex Mappings
• Created mappings using various Transformations like Source Qualifier, aggregator, expression, filter, joiner, lookup, update strategy, sequence generator and prepared Documentation for the Mappings
• Developer several Informatica mappings that transfers data from source the Data Mart.
• Created Source definitions, Source Tables, Target definitions and Target Tables.
• Used Informatica Server Manager to create sessions/ batches to run with the logic embedded in the mappings.
• Tuning Informatica session parameters for performance and running them.
• Prepared documentation of Informatica ETL implementation.
• Involved in reports designing and developing. Involved in integrated reporting capability.
• Developed various reports using oracle reports builder 6i and upgrades the existing reports .
• Developed the Stored procedures using PL/ SQL Tables and records to generate the output in XML format.
• Involved in the data analysis and data discrepancy reduction for the source and target schemas.
• Scheduled the jobs using crontab in UNIX.
• Using UNIX shell scripting created batch jobs to create Index and Analyze tables once the Imports are done.
• Automating data loading, extraction, report generation using UNIX shell scripting.
• Involved in writing Oracle PL/SQL packages, functions, procedures, Korn Shell scripts that were used for staging, transformation and loading of the data into base tables.
• Provided support for the application database related issues.
• Involved in coding, debugging, and trouble-shooting.
• Involved in Data loading and data migration - Used SQL * Loader to load data from excel file into staging table and developed PL/SQL program to load data from staging table into base tables.
• Used Erwin for designing Database both logical and physical data modeling.
• TOAD, SQL Developer tools were used to develop programs and executing the queries.
• Developed forms using forms 6i based on business requirements.
• Worked with SQL Query performance issues. Used index logic to obtain the good performance.
• Involved in the monitoring of database performance in Enterprise Manger console.
• Implemented server side rest full Webservices for external vendors to access our applications

Environment: Oracle 10/11g, Rapid SQL, Edit Plus, Perforce, WinScp, SQL Plus, SQL, PL/SQL, UNIX (HP), Shell (Bash) Script, AWK, SQL * Loader, Windows XP, LINUX, SharePoint, Erwin, Informatica Power Center 9.1

Confidential, NY

Oracle PL/SQL Developer

Responsibilities:

• Studied user requirements and functional specifications.
• Converted User Requirements into formal Functional specification and Interfacing with client.
• Designed, Partitioned, Developed and Maintained the database.
• Worked to define the project implementation strategies.
• Developed Entity Relationship diagrams/Dimensional Diagrams for business requirements using ERWIN.
• Designed and developed Oracle Forms & Reports using Forms10g and Reports 10g. Including Forms based on stored procedures.
• Developed ETL’s for Data Extraction, Data Mapping and data Conversion using SQL, PL/SQL and various shell scripts in Data stage.
• Involved in writing Oracle PL/SQL functions, procedures and packages in Oracle RAC environment.
• Written Bash Shell scripts that were used for staging, transformation and loading of the data into base tables.
• Used CRONJOB for job scheduling on UNIX as well as tools like Autosys to run regular day to day administration scripts and setting up batch scripts.
• Developed the stored procedures using PL/SQL Tables and records to generate the output in XML format and pull data from Web services and from XML format and parse it and load it into tables.
• Enhancing the existing packages for better performance and providing on-going support to existing applications and troubleshooting serious errors when occurred.
• Used Bulk processing for performance enhancement.
• Created UNIX shell scripts using SQL*Loader, SQL*Plus and PL/SQL programs that run as nightly interfaces.
• Worked on generating EDI for STA, ASN segments and few custom based invoices belonged to Invoice, Status and Entry and Generic EDI for most of the customers for the EMS application.
• Written shell scripts and executed them as Cron jobs on UNIX.
• Was responsible for development and testing of conversion programs for importing data from text files into Oracle database utilizing SQL *Loader.
• Developed Webservices using .Net technology

Environment: Oracle 10g/11g, PL/SQL, SQL Plus, Erwin 7.3,SQL Navigator, XML, Shell Scripting, SQL*Loader, Shell Scripting, SQL developer, Data stage, Reports 10g/6i,CSS, DBMS JOB,UTL FILE,UNIX

Confidential

Oracle PL/SQL Developer

Responsibilities:

• Created the database Objects such as Tables, Views, Indexes, constraints .
• Involved in Development, Testing and Maintenance of the System
• Developed the forms for the application and developed Procedures and functions at application level.
• Created the Stored Procedures, functions and Packages using PL/SQL.
• Oracle PL/SQL functions, procedures, Korn Shell scripts were used for staging, transformation and loading of the data into base tables
• Performed data loading using Data Loader to the data into staging tables.
• Created PL/SQL procedures in order to dump the data from staging tables to base tables
• Scheduled the jobs using crontab, in UNIX.
• Database backup and recovery using Export/ Import, Hot or Cold backups or through RMAN
• Monitoring alert logs & resolving problems, if any
• Writing database backup scripts.
• Restoring and Recovering Database while crashes.
• ISBS Installation, Setup, up gradation by installing patches
• Conduction of training programs for bank ‘s DBA
• Responsible for developing reports as per Customers order using reports
• Involved in developing front end screens using forms 6i and generated reports using reports 6i.
• Created Editors, Created List of Values and Record Groups in Oracle Forms 6i.
• Developed Customer transaction upload module to load data into database from flat file with business validation (Package, Procedures & Triggers are used).
• Worked closely with quality assurance and development teams to clarify and understand the functionality to resolve issues and provide feedback in terms of the test matrices and to nail down the bugs.
• Involved during User Acceptance Testing of the application.

Environment: Oracle8i, Forms 6i, Reports 6i, TOAD, Data Loader, AUTOSYS, SQL*Plus, PL/SQL, Windows NT server, UNIX.

Confidential

Oracle PL/SQL Developer

Responsibilities:

• Interacted with business analysts, data architects, application developers to develop a data model.
• Designed the Data models for Data mart. Created Logical and Physical Data models.
• Extensively used ETL to transform data from different source systems and load the data into the Target database.
• Extensively used Source Qualifier, Aggregator, Filter, Expression, Lookup, Update Strategy, Router and Joiner transformation.
• Implemented slowly changing dimensions according to the requirements, Partitioned sessions, modified cache/buffers and tuned transformations for better performance.
• Responsible for Performance Tuning of sources, targets, mappings and sessions.
• Scheduled and ran Extraction, Loading processes and monitored sessions using Informatica Workflow Manager.
• Created Schema objects like Indexes, Views, and Sequences.
• Designed and developed Oracle PL/SQL Procedures.
• Generated reports using Business Objects Report Designer.
• Developed views necessary for structured and ad-hoc reporting.
• Designed testing procedure and test plans.
• Assisted in Production support.

Environment: Informatica Power Center 6.1, Data modeling, Oracle 8i, SQL, PL/SQL, MS SQL Server 2000, Flat Files, Windows 2000.