Summary

• Over 15 years of programming experience as an Oracle PL/SQL Developer in Analysis, Design and Implementation of Business Applications using the Oracle Relational Database Management System RDBMS .
• Involved in all phases of the SDLC Software Development Life Cycle from analysis, design, development, testing, implementation and maintenance with timely delivery against aggressive deadlines.
• Experience with Data flow diagrams, Data dictionary, Database normalization theory techniques, Entity relation modeling and design techniques.
• Expertise in Client-Server application development using Oracle 11g/10g/9i/8i, PL/SQL, SQL PLUS, TOAD and SQL LOADER.
• Effectively made use of Table Functions, Indexes, Table Partitioning, Collections, Analytical functions, Materialized Views, Query Re-Write and Transportable table spaces.
• Strong experience in Data warehouse concepts, ETL.
• Good knowledge on logical and physical Data Modeling using normalizing Techniques.
• Created Tables, Views, Constraints, Index B Tree, Bitmap and Function Based .
• Developed Complex database objects like Stored Procedures, Functions, Packages and Triggers using SQL and PL/SQL.
• Developed materialized views for data replication in distributed environments.
• Excellent technical and analytical skills with clear understanding of design goals of ER modeling for OLTP and dimension modeling for OLAP.
• Experience in Oracle supplied packages, Dynamic SQL, Records and PL/SQL Tables.
• Loaded Data into Oracle Tables using SQL Loader.
• Partitioned large Tables using range partition technique.
• Experience with Oracle Supplied Packages such as DBMS SQL,DBMS JOB and UTL FILE.
• Created Packages and Procedures to automatically drop table indexes and create indexes for the tables.
• Worked extensively on Ref Cursor, External Tables and Collections.
• Expertise in Dynamic SQL, Collections and Exception handling.
• Experience in SQL performance tuning using Cost-Based Optimization CBO .
• Good knowledge of key Oracle performance related features such as Query Optimizer, Execution Plans and Indexes.
• Experience with Performance Tuning for Oracle RDBMS using Explain Plan and HINTS.
• Experience in ETL techniques and Analysis and Reporting including hands on experience with the Reporting tools such as Cognos.
• Created Shell Scripts for invoking SQL scripts and scheduled them using crontab.

WORK EXPERIENCE

Confidential

CDO Analytical Platform CAP

The system helps rating and surveillance analysts in credit rating surveillance of complex structured finance securities.

Responsibilities

• Worked with the front end design team to provide them with the necessary stored procedures and packages and the necessary insight into the data.
• Worked on SQL Loader to load data from flat files obtained from various facilities every day.
• Created and modified several UNIX shell Scripts according to the changing needs of the project and client requirements.
• Wrote Unix Shell Scripts to process the files on daily basis like renaming the file, extracting date from the file, unzipping the file and remove the junk characters from the file before loading them into the base tables.
• Involved in the continuous enhancements and fixing of production problems.
• Generated server side PL/SQL scripts for data manipulation and validation and materialized views for remote instances.
• Developed PL/SQL triggers and master tables for automatic creation of primary keys.
• Created PL/SQL stored procedures, functions and packages for moving the data from staging area to data mart.
• Created scripts to create new tables, views, queries for new enhancement in the application using TOAD.
• Created indexes on the tables for faster retrieval of the data to enhance database performance.
• Involved in data loading using PL/SQL and SQL Loader calling UNIX scripts to download and manipulate files.
• Performed SQL and PL/SQL tuning and Application tuning using various tools like EXPLAIN PLAN, SQL TRACE, TKPROF and AUTOTRACE.
• Extensively involved in using hints to direct the optimizer to choose an optimum query execution plan.
• Used Bulk Collections for better performance and easy retrieval of data, by reducing context switching between SQL and PL/SQL engines.
• Created PL/SQL scripts to extract the data from the operational database into simple flat text files using UTL FILE package.
• Creation of database objects like tables, views, materialized views, procedures and packages using oracle tools like Toad, PL/SQL Developer and SQL plus.
• Partitioned the fact tables and materialized views to enhance the performance.
• Extensively used bulk collection in PL/SQL objects for improving the performing.
• Created records, tables, collections nested tables and arrays for improving Query performance by reducing context switching.
• Used Pragma Autonomous Transaction to avoid mutating problem in database trigger.
• Extensively used the advanced features of PL/SQL like Records, Tables, Object types and Dynamic SQL.
• Handled errors using Exception Handling extensively for the ease of debugging and displaying the error messages in the application.

Environment: Oracle 11g, SQL Plus, TOAD, SQL Loader, SQL Developer, Shell Scripts, UNIX, Windows XP

Confidential

Campaign Management Interface for Marketing

Responsibilities

• Developed Advance PL/SQL packages, procedures, triggers, functions, Indexes and Collections to implement business logic using SQL Navigator. Generated server side PL/SQL scripts for data manipulation and validation and materialized views for remote instances.
• Participated in change and code reviews to understand the testing needs of the change components. Worked on troubleshooting defects in timely manner.
• Involved in creating UNIX shell Scripting. Defragmentation of tables, partitioning, compressing and indexes for improved performance and efficiency. Involved in table redesigning with implementation of Partitions Table and Partition Indexes to make Database Faster and easier to maintain.
• Experience in Database Application Development, Query Optimization, Performance Tuning and DBA solutions and implementation experience in complete System Development Life Cycle.
• Extracted data from the XML file and loaded it into the database.
• Performed modifications on existing code as per change request and maintained it.
• Used Crystal Reports to track logins, mouse overs, click-through, session durations and demographical comparisons with SQL database of customer information.
• Worked on SQL Loader to load data from flat files obtained from various facilities every day. Used standard packages like UTL FILE, DMBS SQL, and PL/SQL Collections and used BULK Binding involved in writing database procedures, functions and packages for Front End Module.
• Used principles of Normalization to improve the performance. Involved in ETL code using PL/SQL in order to meet requirements for Extract, transformation, cleansing and loading of data from source to target data structures.
• Involved in the continuous enhancements and fixing of production problems. Designed, implemented and tuned interfaces and batch jobs using PL/SQL. Involved in data replication and high availability design scenarios with Oracle Streams. Developed UNIX Shell scripts to automate repetitive database processes.

Environment : , Oracle 10g, PL/SQL, SQL LOADER, Oracle Streams 10g Replication , SQL PLUS, HTML, TOAD, XML, HP-UNIX shell scripting VB 6, JAVA

Confidential

Result Monitoring Cost Benefit Analysis System

Responsibilities

• Used HP UNIX, Oracle 9i to redesign an existing insurance system.
• Used TOAD for developing PL/SQL packages.
• Used Unix shell scripts for driving the application.
• Involved in re-platforming and enhancing the system from a VB environment to Oracle
• Reduced the monthly batch processing cycle time by over 50 percent.

Confidential

Fixed Income, Equity and Risk Performance Data Warehousing Project

Tech Lead, Risk Management System

Responsibilities

• Developed and modified a number of Forms and for various modules. Also responsible for following up bugs reported by various users and suggesting possible patches to be applied.
• Wrote Shell Scripts for Data loading and DDL Scripts.
• Worked in Production Support Environment as well as QA/TEST environments for projects, work orders, maintenance requests, bug fixes, enhancements, data changes, etc.
• Wrote conversion scripts using SQL, PL/SQL, stored procedures, functions and packages to migrate data from SQL server database to Oracle database.
• Performed Database Administration of all database objects including tables, clusters, indexes, views, sequences packages and procedures.
• Implemented 10g and upgraded the existing database from Oracle 9i to Oracle 10g.
• Involved in Logical Physical Database Layout Design.
• Set-up and Design of Backup and Recovery Strategy for various databases.
• Performance tuning of Oracle Databases and User applications.
• Used SQL Loader as an ETL tool to load data into the staging tables.
• Used DTS Packages as ETL tool for migrating Data from SQL Server 2000 to Oracle 10g.
• Provided user training and production support.
• Improved the performance of the application by rewriting the SQL queries.
• Wrote packages to fetch complex data from different tables in remote databases using joins, sub queries and database links.

Environment: Oracle 9i/10g, SQL, PL/SQL, Forms 9i, Reports 9i, SQL Loader, SQL Navigator, Crystal Reports, TOAD, VB 6,

Confidential

Financial Services DataWarehousing Application

Responsibilities

• Developed about 500 PL/SQL and Pro C programs and UNIX Shell Scripts on Oracle 7.3 and Oracle8i.
• Used Pine Cone for data usage tracking.
• Developed Business Object Universes for Adhoc queries.
• Developed several Intranet applications using ASP for Warehouse data updates and reporting.
• The Warehouse database is about 400 GB in size accommodating 5 years of history and is able to cater to a wide variety of adhoc queries from the business users.
• The data is stored in both relational form and in a star schema to preserve the 'as is' history.
• Used Designer 2000 and Erwin case tool for storing object definitions and generate DDL scripts.

Environment : VB 6, Oracle 9i, SQL, PL/SQL, Forms 9i, Reports 9i, SQL Loader, SQL Navigator, Crystal Reports, TOAD