1. Chaitanya Vemparala
Email-id: chaitu120@gmail.com
Mob: +91- 8008701100
Professional Summary
 Having 5 Yearsof IT experience in Development, Implementation, and Support of Data Warehousing
and Data Integration Solutions using Informatica Power Center.
 Work Experience at the client location GE Capital in Melbourne (Australia) for 9 Months.
 Experience in extraction of the data from various source systems ranging from Mainframes like VSAM
files, Flat Files etc. to RDBMS like Oracle.
 Experience in designing/developing mapping using Source Qualifier, Lookup, Filter, Expression,
Router, Update Strategy, Rank, Sequence Generator etc.
 Extensively worked on data extraction, Transformation and loading data from various sources like
Oracle, SQL Server and Flat files.
 Work closely with Development/Release teams while planning major deployments.
 Building a pre-prod environment from scratch for production support team.
 Had knowledge on Kimball/Inmon methodologies.
 Proficiency in developing SQL with various relational databases like Oracle, SQL Server.
 Experience in Task Automation using Job scheduling and communicating with Server using pmcmd.
 Worked on optimizing the mappings by creating Re-usable transformations and mapplets.
 Ability to learn new technologies within short span of time.
 Independently perform complex troubleshooting, root-cause analysis and solution development.
 Ability to meet deadlines and handle multiple tasks.
 Team player, Motivated, able to grasp things quickly with strong analytical, problem solving skills.
 Well known in Dimensional Modeling, Star and Snowflake Schemas.
 Participated in integration of data sources like relational and Flat Files.
 Proficient in using Informatica workflow manager, Workflow monitor.
 Scheduling workflows using the Informatica workflow scheduler.
 Experience in the migrating the code across different environments.
 Good communication, interpersonal skills.
 Having self-learning ability and can adapt to new environments.
Job Objective
To obtain a suitable position where I can maximize my analytical and technical skills in a high growth oriented
organization.

2. Certifications:
 Oracle 10g SQL certification
 Brain Bench Microsoft SQL server Certification.
Experience
Consultant – Oakton - Consulting Technology
Oct 2010 – Till date
Technical Skills
 ETL Tools Informatica Power Center 9.x
 Reporting Tools BO 6.5, Power BI.
 Databases Oracle 9i/10g, SQL Server 2008
 Other Tools SQL Tools, SQL Developer
 Scheduling Tool Control-M
Education
Masters in Computer Science from Osmania University, 2010 pass out.
Recognitions & Awards
 Received appreciations and best performer awards at multiple times during my tenure in Oakton.
Project Experience
Client GE Capital, Australia
Role Associate Consultant
Duration OCT2010 – JAN2013
Environment Informatica 9.1, Exadata, mainframe systems, SQL tools 1.5

3. Key Responsibilities
 Developed ETL programs using Informatica to implement the business requirements
 Performed data manipulations using various Informatica Transformations like Filter, Expression,
Lookup (Connected and Un-Connected), Aggregate, Update Strategy, Normalizer, Joiner, Router,
Sorter and Union
 Created mappings which involved SCD Type 2 scenario
 Used pre and post session assignment variables to pass the variable values from one session to other
 Used parameters wherever possible to avoid the use of hard-coding with in the mappings
 Designed workflows with many sessions and tasks like decision, assignment task, event wait tasks.
 Used Informatica scheduler to schedule workflows
 Conducted thorough code review and ensured that the outcome is in line with the objective and all the
processes and standards are followed
 Used debugger in identifying bugs in existing mappings by analyzing data flow and evaluating the
transformations
 Worked on mappings using Connected Lookup transformations using Dynamic cache
 Used relational SQL wherever possible to minimize the data transfer over the network
 Effectively worked on Onsite and Offshore work model
 Followed Agile methodology by attending daily catch-up meetings and completed all the deliverables
on task basis
 Prepare a detailed Implementation plan and checklist
Client GE Capital, Australia
Role Data warehouse Support Consultant
Duration JAN 2013 – till date
Environment Informatica 9.1, Exadata, mainframe systems, SQL tools 1.5
Project Description
GE Capital is a leading consumer finance company in Australia and New Zealand, offering a range of services
including personal loans, credit cards, personal insurance and interest-free and promotional retail finance
The primary objective of this project is to capture different Customers, Policies, Claims, Products and financial
related data from multiple OLTP Systems, VSAM and Flat files. Extract Transform and Load this data into
Enterprise Data Warehouse using Informatica Power Center and generate various reports on a daily, weekly
monthly and yearly basis. These reports give details of the various products of GE Money like Insurance,
Personal Loans, Credit Cards and Auto Loans. The reports are used for identifying risk analysis for Business
development Managers
Key Responsibilities:
 Monitoring and fixing production ETL failures.
 Troubleshooting data inconsistencies by digging through the transformations in Informatica Power
Center 8x/9x tools.
 Performing Admin tasks across production and pre-prod environments, e.g.: handling the Informatica
outages, installing Informatica hotfixes, enabling/disabling secondary nodes.
 Identify gaps in end-to-end ETL processes and initiate improvements/bug fixes.
 Deploying changes into pre-prod and production.

4.  Working with ETL related Oracle SQL, PL/SQL and Windows batch scripts.
 Executing, making changes and troubleshooting MS DTS and SSIS packages.
 Administration of BO 6.5 services and troubleshooting data issues in BO reports
 Ensures proper configuration of the Power Center Domain components.
 Experience in nodes, Repository services, Integration services, Reporting Services.
 Ensures proper application of the licensing files.
 Creating Folders and manages user and user group access to objects.
 Monitoring the Jobs and sever space availability and CPU Process.
 Responsible for investigation, characterization, and communication of build and release problems;
implementing corrective and preventive actions.
 Involved in migration of objects in all phases (DEV, QA and PRD) of project and trained developers to
maintain system when in production.
 Expected to take control and responsibility for Dev, QA, and production environments while guiding the
Users in the best practices of the software.
 Being proactive in identifying and preventing resource bottlenecks, and to position ourselves early to
prepare for resource upgrades to meet the growing needs of our business.
 Creating SR to Informatica Inc- related to any Power center product issues.
 Full knowledge of GE’s enterprise wide Informatica UNIX / LINUX folder structures, folder access
flexibility, security access, disk storage concerns
Declaration:
I hereby declare that the above said particulars are true to the best of my knowledge.
Date:
Place: