Sr. Pl/sql/ Database Developer Resume
Philadelphia, PA
SUMMARY
- 8 years of experience in IT industry with emphasis on Analysis, Design, Development, Implementation and Management of projects using Oracle (SQL, PL/SQL).
- Solid experience in translating business requirements into creation of Database Objects.
- Strong Exposure in writing Simple and Complex SQLs, PL/SQL Functions and Procedures, Packages and creation of Oracle Objects.
- Proficient in developing the Data mart in Star Schema and Snowflake Schema, Flat files and building the Data warehouse, Efficient in developing the Logical & Physical Data model, OLTP/OLAP, ER Diagrams and organizing the data as per the Business requirements
- Extensive experience on using SQL, PL/SQL, ORACLE Database, and many other ORACLE facilities, such as Import/Export, SQL*Loader and SQL*PLUS.
- Good knowledge of Performance tuning - TKProf, Query Plan, TOAD.
- Strong knowledge in reporting tools QlikView, Tableau, TIBCO Spotfire, MicroStrategy, Crystal Reports.
- Good understanding on Data Modeling.
- Possess very good knowledge of Data Warehousing concepts and strong understanding of Informatica Power Center.
- Expertise in Dynamic SQL, Records, Arrays and Exception Handling.
- Expertise in Export, Import and SQL * Loader Utilities.
- Experience in understanding complicated performance issues and worked with DBA’s to suggest valuable ways to fix the problem.
- Significant experience working with clients, technical teams for executing concurrent multi-technology projects.
- Well versed with version control tools - CVS, Git, Tortoise SVN.
- Strong problem solving & technical skills coupled with confident decision making for enabling effective solutions leading to high customer satisfaction and low operation costs.
- Significant experience in 24/7 Production Environment.
TECHNICAL SKILLS
Languages: PL/SQL, SQL * Plus, UNIX Shell Scripting - AWK
RDBMS: Oracle 11g/10g /9.x/8. x.
Application Server: Apache, WebLogic.
Tools: OBIEE, TOAD, SQL Developer
ETL Tools: Informatica Power Center, Cognos
Operating System: Windows 7, 8, UNIX/ Linux
BI Reporting Tools: QlikView, Tableau, TIBCO Spotfire, MicroStrategy
PROFESSIONAL EXPERIENCE
Confidential, Philadelphia, PA
Sr. PL/SQL/ Database Developer
Responsibilities:
- Managed requirement gathering, Estimation, Data Model, database scripts, functional & technical design and ETL development of integrating data into data Warehouse
- Logical and physical Data modeling and Design of the system
- Developed stored procedures and complex packages extensively using PL/SQL and shell programs.
- Developed and Created Database Objects in OLTP and OLAP Systems by Creating triggers, packages, procedures and functions using PL/SQL.
- Optimal in loading data from various Flat files using SQL* Loader and implementing Data Cleansing Procedures.
- Well Experienced in Tuning SQL queries, database objects on OLTP Systems by Creating Indexes, Optimizers, hints and analyzing the Explain Plan.
- Building Data warehouse by summarizing the Data on Yearly Granularity and Populating the Data in Star Schema and Snowflake Schema
- Maintaining and organizing the Data Warehouse Building in Hierarchical level as per the Business Rules of data management.
- Performing Performance Tuning on the SQL Queries.
- Developing the Scrips by Using UNIX Shell Scripting.
- XML file generation from database based on demand web service input, Consumer database
- Delegating the task to the Team and preparing the check list for the same.
- Participating in the daily status call with the offshore team to work in sync with the team on their understanding level by each individual item.
- Used SQL Loader to load data from flat files to the testing databases by using Oracle R12.
- Evaluated BI solutions from vendors. (OBIEE, QlikView)
- Created materialized views (snapshot) for remote instances.
Environment: Oracle 11g, SQL, PL/SQL, Informatica9.0, TOAD, PL/SQL Developer tool, UNIX Shell Scripting.
Confidential, San Francisco, CA
Sr. PL/SQL/ Database Developer
Responsibilities:
- Designed/developed/Modified tables, views, materialized view, stored procedures, packages and functions.
- Developed stored procedures to extract the data from different sources and load it into data warehouse.
- Analyzing the data needs for the customized reports. Mapping the data requirements developing Stored Procedures, Functions and Triggers.
- Involved in uploading of the data from flat files into Databases and validated the data with PL/SQL procedures.
- Maintaining daily batch cycle and providing 24-hour production support.
- Preparation of the Test Cases and involvement in Unit Testing and System Integration Testing.
- Utilized SQL*Loader to load flat files into database tables.
- Created SQL*Loader scripts to load data into temporary staging tables.
- Partitioned tables and indexes for better performance of application.
- Contacting Application Team and clients to gather the information for migration. Reviewed architecture.
- Analyze SQL statements, reorganize database objects and design indexes to improve response of queries.
- Involved in handling the changes in compiling scripts according to the database changes.
- Developed reports using complex queries as per client request as a part of production support.
- Provided on call support, solved the user issues and made necessary changes.
- Resolving Production Severity Issues in time and meeting the SLA.
Environment: Oracle 11g, SQL, PL/SQL, SQL*plus, SQL*Loader, Shell Scripting, JIRA, TOAD and PL/SQL Developer tool.
Confidential, Phoenix, AZ
Programmer Analyst/PL/SQL
Responsibilities:
- Requirement gathering from Business partners and translate into software needs
- Preparing high Level and Low-level design documents.
- Involved in development of validation Program.
- Developed SQL queries, procedures, functions, packages and triggers.
- Involved in Data Analysis and reducing Data Discrepancy for the source and Target schemas.
- Oracle PL/SQL Functions, Procedures, Shell Scripts were used for staging transformation and loading of the data from flat files to target.
- Involved in writing Technical Specification Document.
- Also worked on Migration from UNIX to Linux for cloud environment, tested Linux scripts after migration.
- Developed Database Triggers to enforce security.
- Designed and Developed Automation process for Data Conversions.
- Actively involved in analyzing the old database system and mapping tables, relationships and columns.
- Support for System Integration testing and UAT.
- Participating in the daily status call with the offshore team to work in sync with the team on their understanding level by each individual item.
Environment: Oracle 11g/10g, UNIX Shell Scripting.
Confidential, Malvern, PA
Database Programmer
Responsibilities:
- Installation, Creation and support of Oracle 8i database environments.
- Involved in the maintenance and enhancement of the application.
- Maintaining Logical and Physical structure of the database.
- Creating tablespaces, tables, views, scripts for automatic operations of the database activities.
- Coded various stored procedures, packages and triggers to in corporate business logic into the application.
- Data conversion from flat file to intermediate tables using SQL*Loader, Data mapping.
- Designed/developed tables, views, various SQL queries, stored procedures, functions.
- Monitor database and system backups, developed Oracle Stored procedures, functions, packages, and triggers that pull data for reports.
- Developed database objects including tables, Indexes, views, sequences, packages, triggers and procedures to troubleshoot any database problems.
- Done thorough Design & Code review for the development work like PL/SQL program units,
- Created SQL*Loader scripts to load data into the temporary staging tables.
- Created Custom Triggers, Stored Procedures, Packages and SQL Scripts.
- Involved in uploading of the data from flat files into Databases and validated the data with PL/SQL procedures and Worked on various backend Procedures and Functions using PL/SQL.
- Tuned complex Stored Procedures for faster execution and Developed database structures, according to the requirements.
- Created various SQL and PL/SQL scripts for verification of the required functionalities.
- Developed complex SQL queries for data retrieval from various database objects including tables &views.
Environment: Oracle 8i, TOAD, PL/SQL, SQL Scripting and UNIX Shell Scripting.
Confidential
Oracle SQL and PL/SQL Developer
Responsibilities:
- Responsibilities include, interacting with the business users at the bank for gathering and managing the requirements.
- Performing gap analysis activity to understand and document the gaps between the source and the target system.
- Preparing Business Requirement Document based on the gap analysis activity for capturing the business requirement for all the missing functionality in the target system.
- Understanding all the interfaces in the source system and helping the technical team in preparation of interface & layout specification document.
- Charting out different impact analysis on the migration activity with an alternate strategy for system conversion.
- Prepared the High Level -Technical Design Document for offshore team to proceed with the Code Development.
- Review of code changes, test procedure, test plans and modification of stored procedures.
- Involved in comparing Production data with Test data for identifying and cleaning corrupted data.
Environment: Oracle 8i, SQL, PL/SQL, SQL*Loader, Toad, Windows NT/XP.