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Senior Oracle Pl/sql Developer Resume

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Miamisburg, OhiO

SUMMARY

  • 10+ years of experience as Oracle PL/SQL Developer in Oracle 11g, 10g, 9i & 8i versions and IT experience in Software Development/Maintenance & Support Projects
  • Technical areas of experience related to PL/SQL, UNIX & Shell Scripting
  • Experienced in complete life cycle Implementation of PL/SQL Development
  • Proficient in writing complex SQL Queries, Stored Procedures, Normalization, Database Design, creating Indexes, Functions, Triggers, Sub Queries, Collections, Performance Tuning and Query Optimization
  • Experienced in Object Oriented Programming concepts with Oracle types and member functions
  • Performance tuning and optimization using Explain Plan, SQL*Trace, TKPROF and Oracle Optimizer hints
  • Experienced in PL/SQL Performance Tuning using Bulk Collections and other optimization techniques
  • Expertise in Dynamic SQL and Exception Handling
  • Experienced in performing Oracle DBA monitoring activities
  • Expertise in Data Integration of data from various data sources like SQL Server, Oracle, Flat Files, and delimited files and Data Migration
  • Worked with various performance tuning techniques using tools provided by Oracle like SQL*TRACE, TKPROF, HINTS, DBMS STATS etc
  • Experienced in importing data from Flat files from Legacy Applications to Oracle DB using SQL Loader
  • Creating Users, Roles and Profiles, Privilege management with role - based security.
  • Experience as a database architect and worked as data modeler.
  • Experience on handling teh team and overall project and offshore team.
  • Good experience on Exadata and oracle 12 c
  • Maintenance of user accounts and privileges to maintain database security
  • Experienced in performing basic Oracle DBA activities like importing and exporting schemas between databases
  • Expertise in Data Warehousing and ETL concepts
  • Good Exposure to Informatica Transformation concepts
  • Expertise in handling 24/7 Production Support projects
  • Good exposure to Development, Testing, Production Support, Debugging, Implementation and Documentation
  • Experienced in Requirements Gathering and Preparing Use Cases
  • Comprehensive and in-depth experience using teh System Development Life Cycle (SDLC)
  • Expertise in working with Projects in Agile Methodology
  • Developed tasks for SCRUM sprint meetings in Agile Methodology
  • Strong Team Building & Leadership capability and excellent Mentoring Skills
  • A self-motivated, responsible and reliable team player with a set of strong technical skills
  • Strong conceptual, business, analytical skills and innovative problem solving abilities
  • Good communication, interpersonal and problem-solving skills

TECHNICAL SKILLS

Operating Systems: Windows 2000/NT/XP/2003, UNIX, Red Hat Linux 9

Databases: Oracle 8i/9i/10g/11g/12c, SQL Server

Database Tools: Import/Export, SQL*Plus, SQL loader, Explain plan & TKPROF, T-SQL, TOAD, Data Pump

Languages: SQL, PL/SQL, HTML, XML

Scripting: Vi Editor, Shell, Perl Scripting

ETL Tools: Informatica

Analytical Tools: Lavastorm BRE

Reporting Tools: webFocus, webMethods

Version Control Tools: IBM Rational Clear Case, Dimensions, TFS

Service Desk Tools: HP Service Desk, BMC - Remedy, Rally

SCM Tools: I2/JDA SCM Tool

PROFESSIONAL EXPERIENCE

Confidential, Miamisburg, Ohio

Senior Oracle PL/SQL Developer

Responsibilities:

  • Involved in requirement analysis, ETL designand developmentfor extracting data from teh heterogeneous source systems like SQL Server, Oracle, Teradata, flat files,and loading into Staging and Data Warehouse Star Schema.
  • Create PL/SQL Packages which has Procedures, Functions and Triggers
  • Performance tune SQL Queries with Explain plan to modify all full table scan paths for faster query execution
  • Used Oracle Types, Analytical functions, Collections, UTL File Package, Parallel execution, Dynamic SQL concepts in Oracle PL/SQL Development
  • Perform Unit Testing to validate teh code which was modified as a part of requirement change
  • Used PL/SQL to create Packages, Functions, and Procedure.
  • Used PL/SQL and SQL*Loader to create ETL packages for flat file loading and error capturing into log tables.
  • Worked on external tables to load teh data in stage area.
  • Worked on pipe line table functions to retrive data faster in collections
  • Worked on plsql collections and ref corsors.
  • Tuning of teh SQL queries, which takes long time to process teh request using Explain Plan, Hints to reduce teh response time.
  • Perform Integration testing to make sure teh modified code doesn’t affect teh teh other processes
  • Create Documentation for teh proposed change

Confidential, Tampa, FL

Sr. Oracle PL/SQL Developer

Responsibilities:

  • Involved in requirement analysis, ETL designand developmentfor extracting data from teh heterogeneous source systems like SQL Server, Oracle, Teradata, flat files,and loading into Staging and Data Warehouse Star Schema.
  • Maintain and Support teh creation of legal entities and corp gov related modules
  • Create PL/SQL Packages which has Procedures, Functions and Triggers.
  • Used bulk collect and forall futures teh retrive data fast and insert bulk operations.
  • Used data compression and parllel processing techniques.
  • Performance tune SQL Queries with Explain plan to modify all full table scan paths for faster query execution
  • Used Oracle Types, Analytical functions, Collections, UTL File Package, Parallel execution, Dynamic SQL concepts in Oracle PL/SQL Development
  • Perform Unit Testing to validate teh code which was modified as a part of requirement change
  • Extensive use of Unix Shell Scripts, Cron jobs and Autosys to automate process.
  • Perform Integration testing to make sure teh modified code doesn’t affect teh teh other processes
  • Create Documentation for teh proposed change

ENVIRONMENT: Oracle PL/SQL, Oracle 11g, java, Banking Domain

Confidential, Hartford, CT

Sr. Oracle PL/SQL Developer

Responsibilities:

  • Estimate, plan, execute and monitor Projects
  • Gather requirements for change requests with teh Business team and create design documents
  • Provide User Access to Business End Users to teh Front end tools after getting teh required approvals
  • Create PL/SQL packages for implementing Change Requests for adding new functionality to teh application
  • Created database objects like Tables, Views, Sequences, Synonyms, Stored Procedures, Functions, Packages, Cursor, Ref Cursor and Triggers.
  • Wrote complex SQL Statements, Complex Joins, Co-related Sub-queries and SQL Statements with Analytical Functions
  • Performed SQL and PL/SQL tuning using tools like EXPLAIN PLAN, SQL*TRACE, TKPROF and AUTOTRACE
  • Extensively used Oracle Hints to direct teh optimizer to choose an optimum query Execution Plan
  • Extensively used Bulk Collection in PL/SQL Objects for improving teh performance
  • Handled errors using Exception Handling extensively for debugging and maintainability.
  • Automated Oracle and Informatica workflows using Unix Cron Utility in Unix Environment.
  • Responsible for writing Unix Shell scripts for loading data using SQL*Loader. Teh Control Files for teh tables were created and automated through UNIX shell scripts to perform data load in to Oracle tables. Used SQL Loader and PL/SQL scripts to load data into teh system application.
  • Performed Data Cleansing to weed out erroneous Orders from teh DWH tables
  • Extensively used Toad to develop Oracle PL/SQL Packages
  • Create Procedures and Functions in SQL Server to migrate data from Legacy servers to Oracle Datawarehouse tables
  • Create Informatica worflows (7.0 for Flat Roll/9.0 for Tubular implementations) for implementing business logic
  • Worked on Sessions & workflows for variety of loads starting from Source to Target
  • Created Parameter Files to override session properties for source directory, Bad file Directory, Source, Target & created Mapplet parameters for Mapplets
  • Created Mappings using Designer, Extracted teh data from teh flat files and other RDBMS databases into staging area and loaded onto Data Warehouse
  • Developed teh Informatica Mappings by using Aggregator, SQL Overrides by using Lookups, source filter by using Source Qualifiers and Data Flow Management into multiple targets using Router Transformation
  • Developed reusable Workflows, Worklets, Mappings and Mapplets using transformations including Router, Aggregator, Lookup, Filter, Expression, Sequence Generator, Update Strategy, Joiner and Union
  • Create Perl & Shell scripts for automating teh business logic
  • Create ABPP (Agile Business Process Platform) workflows which sequences teh execution of Oracle Packages, Informatica workflows, Perl and Shell scripts as per teh business logic
  • Deploy teh code across teh environments to main code consistency and update teh same in Clear Case for version control
  • Create Test Cases for verification and validation of teh Change Requests

ENVIRONMENT: Oracle PL/SQL, Oracle 11g, SQL Server 2012, Informatica, Java, ABPP, UNIX, Shell & Perl Scripting

Confidential, New Albany, OH

Sr. Oracle PL/SQL Developer

Responsibilities:

  • Create Use case documents for teh functional requirements for teh Change Request
  • Setup Sprint calls with teh End User for Change Requests
  • Weekly calls with teh Business and teh Management for maintaining Change Requests
  • Daily status calls with teh end users during teh Requirement Gathering phase to mitigate risks
  • Bring new projects by identifying areas of improvements during discussions with Management team and Business Users
  • Get teh inventory details from teh order tables for teh CDR’s from CABS and SS7 source systems for MOU and BNC Application
  • Help Developers in translating requirements during coding
  • Deploy Code across all environments and upload teh code in Dimensions tool for version control
  • Gather requirements from End Users and SME’s regarding teh Change Request and create High Level and Low Design documents
  • Create PL/SQL Packages which contains Cursors, Exceptions, Procedures and Functions to load teh daily, weekly and monthly data into teh database table.
  • Performance tune End user SQL queries using Explain plan with TKPROF and Oracle Optimizer hints
  • Performance tune DML statements for fetching and loading data into teh Oracle database tables using Bulk Binds logic
  • Create Range Partitions based on load date and maintain List/Range sub-partitions for different Circuit ID’s for Vendors
  • Create DML Triggers for updating teh audit tables for DML activities on teh master tables
  • Create Views for Master tables and Materialized views from DWH tables for End User Queries
  • Load data from Flat files from Legacy Mainframe Applications using SQL Loader scripts
  • Responsible for creating users, granting roles and privilege management
  • Perform SQL Testing for verifying proper loading of data in teh DWH tables
  • Create adhoc PL/SQL blocks for User requirements
  • Resolve teh database issues of teh users whenever in need of
  • Create Programmable blocks using SQL Server to migrate data from Legacy applications to Oracle
  • Provide Data Integration Support by integrating data from all teh different systems using teh Lavastorm Business Rule Editor(Lavastorm BRE) and load teh data in DWH tables
  • Perform Data Integration activity, Data Quality Management and Data Analysis activities using Lavastorm BRE Analytical Tool
  • Create Revenue reports for end users using webFocus reporting tool
  • Created POC for teh migration of Lavastorm BRE graphs to Informatica PowerCenter 9.X
  • Create Unit Test cases for verification and validation for teh Change Request
  • Created automation scripts in Shell & PERL Scripting
  • Create comprehensive documents of teh changes made for teh end users

ENVIRONMENT: Oracle 11g, Agile, SQL, PL/SQL, SQL Server 2008, Lavastorm BRE, Informatica, UNIX & Shell Scripting

Confidential

Sr. Oracle PL/SQL Developer

Responsibilities:

  • Provide teh Project Playbooks and teh Component Release Notes (CRN’s) for new projects and Change Requests
  • Provide Environments for new projects, Deliver teh components using teh Clearcase tool
  • Create PL/SQL code for implementing teh application logic
  • Ensuring security of teh database by creating profiles for each user and monitored teh user sessions
  • Reporting and resolving all serious Oracle alert log messages
  • Responsible for enhancements depends on teh client’s functionality
  • Interaction with Development Team in fine tuning teh SQL and PL/SQL code
  • Resolve teh database issues of teh users whenever in need of
  • Created SQL scripts for static data, views, and synonyms
  • Provide Performance Tuning Support to teh Client Sql queries

ENVIRONMENT: Oracle 11g, SQL, PL/SQL, UNIX & Shell Scripting

Confidential, Stamford, CT

Sr. Oracle PL/SQL Developer

Responsibilities:

  • Creating database objects and worked on implementation of teh objects.
  • Created teh required PL/SQL package for teh Migration of XML data to Oracle tables
  • Created stored procedures, functions, triggers and packages.
  • Involved in teh end-user activities.
  • Took part in teh Unit testing of teh Project
  • Took part in defect fixing during teh Integration Testing Phase of teh Project

ENVIRONMENT: Oracle 11g, SQL, PL/SQL, UNIX & Shell Scripting

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