Ramachandran has over 9 years of experience as a Senior Informatica Developer. He has expertise in data warehousing, ETL development and implementation using Informatica PowerCenter. Some of his key skills include dimensional modeling, mapping complex transformations, tuning Informatica workflows, and working with databases such as Oracle, SQL Server and Teradata. He has worked on multiple projects in the healthcare domain for clients in the US and India.

1. Ramachandran Muppidathi
Senior Informatica Developer
949-449-4749 | ramachandran28@gmail.com
Summary:
• Around 9+ years of experience in IT industry with expertise in Analysis, Design, Development,
Implementation, Modeling, Reporting, Data Analysis and Implementation of enterprise wide
applications and Reporting services
• Expertise in working with Informatica Power Center (Designer, Repository manager, Repository
Server Administrator console, Server Manager, Work flow manager, workflow monitor)
• A bright, talented and self-motivated data analyst, who has excellent organizational skills, is highly
efficient and has a good eye for detail.
• Well versed with Relational and Dimensional Modeling techniques like Star Schema, OLAP, Fact and
Dimensional Tables
• Expert-level mastery in designing and developing complex Mappings using transformations like
Source qualifier, Aggregator, Expression, Connected &Unconnected lookup, Filter, Joiner, Sequence
generator, Sorter, Router, Normalizer and Update Strategy
• Experience with high volume datasets from various sources like Oracle, Flat files, SQL Server and Xml
• Expertise in Tuning the DW environment including Teradata, Oracle SQL query tuning, Database
tuning and in Informatica Power center to identify bottlenecks, tune and remove bottlenecks
• Used Debugger to test the data flow and Optimized the Solution by using the performance tuning
methods in the Oracle SQL queries like Indexing techniques, Hints, Partitioning and Parallel execution
process
• SCD Management including De-normalization, Cleansing, Conversion, Aggregation, and
Performance Optimization
• Design Source to Target maps, Code Migration, Version control, scheduling tools, Auditing, shared
folders, data movement, naming in accordance with ETL Best Practices, Standards and Procedures
• Thorough knowledge of the Data Warehouse Development Life Cycle. Performed all dimensions of
development including Extraction, Transformation, and Loading (ETL) data from various sources into
Data Warehouses and Data Marts using PowerCenter
• Hands on experience in writing, testing and implementation of the triggers, stored procedures,
functions, packages at database level and form level using SQL, PL/SQL
• Involved in the Migration process from Development, Test and Production Environments
• Extensive database experience using Oracle 11g/10g/9i, MS SQL Server 2008/2005 and Teradata
• Excellent communication, analytical and interpersonal skills
• Quick learner and adaptive to new and challenging technological environments
• Highly motivated to take independent responsibility as well as ability to contribute and be a
productive team member
Technical Skills:
Data Warehousing/ETL Informatica Power Center
Data Modeling Dimensional Data Modeling, Star Join Schema Modeling, Snowflake
Modeling, FACT and Dimension Tables, Physical and Logical Data Modeling,
Exception Handling, Project Deployment, Configurations
Databases Oracle 11g/10g/9i, MS SQL Server 2008/2005, Teradata
Programming UNIX Shell Scripting
Environment Windows, UNIX

2. Other tools & Utilities Business Objects, Teradata, Toad, Version Manager, Remedy, Jira
PROFESSIONAL EXPERIENCE:
Cognizant Technology Solutions Pvt Ltd Dec 2011 – Till date
CSS CORP Pvt Ltd Apr 2010 – Dec 2011
Slogic Solutions Pvt Ltd May 2007 – Apr2010
Project # 1
Client: CareSource, Dayton OH Apr 2015 –Till date
Work Location: Dayton OH, USA
Role: Sr.ETL Developer
Project Description:
CareSource business requires an automated process for QI Clinical Quality Monitoring reporting. These
reports are used to monitor and track NCQA, state compliance and Case Management. These automated
reports may require manual edits to a certain level.
Client Description:
CareSource is a leading non-profit managed care company based in Dayton, Ohio. CareSource has been
meeting the needs of health care consumers for more than 25 years
Responsibilities:
• Complete understanding of Data in various sources, so as to support Business Intelligence (BI) Team
in creating SDLC
• Business walk-through on ETL high level of analysis before getting into it. Suggested client business
team on high level and low Level design changes (if required). Involved working with analysts and
Business teams by participating in status meetings and Business requirement understanding sessions
and Decision making.
• Prepared the estimates based on complexity involved in the ETL and Report development by keeping
all dependent factors.
• Responsible for loading, extracting and validation of client data.
• Analyzing raw data, drawing conclusions & developing recommendations
• Supported BI team to create Logical and Physical Data Models for Data Warehousing
• Created Incremental Iterative ETL releases using an Agile Process
• Supported and Created Source to Target Documentations, along with Business Analysts
• Supported and Fixed ETL bugs, Reporting bugs identified by QA Team using Agile Methodology
• Involved in extensive DATA validation by writing several complex SQL queries and Involved in
back-end testing and worked with data quality issues
• Performed all aspects of Verification, Validation including Functional, Structural, Regression, Load
and System Testing
• Migrated ETL Codes from Development Environment to Test Environment and Deploy ETL codes to
Production Environment
• Scheduled and Monitored Workflows in Production Environment under various circumstances and
create event wait and event raise tasks as per the need
• Identified bottlenecks through performance Testing and Applied SQL performance tuning techniques
extensively, working with DBA’s to resolve performance and tuning issues
• Attended Daily status meetings with the BI Team and updated the status of the Project under Agile
Methodology
Environment: Informatica , Windows , UNIX, SQL Server, Teradata

3. Project # 2
Client: Alliance Healthcare Services, California Mar 2015 –Apr 2015
Work Location: CA, USA
Role: Sr.ETL Developer
Project Description:
Alliance has adopted a phased approach for developing the Data Warehouse capability. The first phase to be
completed will be the Finance Data Mart. Cognizant team is involved in analysis and solution architecture for
the proposed EDW. We have provided the business understanding, technical architecture, Data model
suggestions, data quality recommendations and best practices to be implemented in the enterprise data
warehouse
Client Description:
Alliance HealthCare Services is a leading national provider of diagnostic radiology and radiation oncology
services. With over 30 years’ experience, our business model is based upon partnering with hospital and
healthcare providers to maximize the quality of care, operational efficiency and profitability of these essential
service lines, which typically account for a significant portion of their revenues.
Responsibilities:
• Participated in data modeling (logical and physical) for designing the Data Marts for finance, Sales,
Billing.
• Responsible to perform the data analysis for various Service requests, perform impact analysis to find
out the systems/programs that could be potentially affected by proposed change(s), coding, and
testing and implementation activities
• Business walk-through on ETL and Report development and doing high level of analysis before getting
into it. Suggested client business team on high level and low Level design changes (if required).
Involved working with analysts and Business teams by participating in status meetings and Business
requirement understanding sessions and Decision making.
• Prepared the estimates based on complexity involved in the ETL and Report development by keeping
all dependent factors.
• Responsible for loading, extracting and validation of client data
• Analyzing raw data, drawing conclusions & developing recommendations
• Writing SQL scripts to manipulate data for data loads and extracts
• Developing data analytical databases from complex financial source data
Environment: Informatica Power Center, SQL Server 2008
Project # 3
Client: McKesson Specialty Health, Arizona Mar 2012 –Jan 2015
Work Location: Chennai, India
Role: Sr.ETL and BI Developer
Project Description:
Mckesson Specialty Health (MSH) provides Patient Assistance Programs (PAP) to poor patients having life
threatening diseases like cancer etc. It has partnered with various drug manufacturers and other payers to
provide the support to the needy patients. It has various applications to support PAP and Reimbursement.
The datawarehouse provides the information on various KPI's like Turn Around Time (TAT) of Reimbursement
cases, Cycle time of drugs received by the patients etc.
Client Description:

4. McKesson distributes health care systems, medical supplies and pharmaceutical products. Additionally,
McKesson provides extensive network infrastructure for the health care industry. McKesson acquired leading
cancer services company US Oncology, Inc. which was integrated into the McKesson Specialty Care Solutions
business. McKesson Specialty Health (MSH) empowers the community patient care delivery system to
advance the science, technology and quality of care.
Responsibilities:
Responsibilities:
• Involved in full life cycle development including Design, ETL Strategy, Troubleshooting, Reporting, and
Identifying facts and dimensions.
• Prepared the required application design documents based on functionality required.
• Designed the ETL processes using Informatica to load data from Oracle, Flat Files (Fixed Width), and
Excel files to staging database and from staging to the target database.
• Implemented the best practices for the creation of mappings, sessions and workflows and
performance optimization.
• Responsible to perform the data analysis for various Service requests, perform impact analysis to find
out the systems/programs that could be potentially affected by proposed change(s), coding, and
testing and implementation activities
• Alerts Monitoring, Load Monitoring and Servers Monitoring. loads (workflows) whether the loads are
scheduled to respective timings
• Business walk-through on ETL and Report development and doing high level of analysis before getting
into it. Also be responsible for the Preparation of Requirement Traceability Matrix (RTM). Suggested
client business team on high level and low Level design changes (if required). Involved working with
analysts and Business teams by participating in status meetings and Business requirement
understanding sessions and Decision making.
• Manipulating, cleansing & processing Reporting data using Excel, Access, Oracle and SQL.
• Responsible for loading, extracting and validation of client data.
• Using Informatica to extract, transform & load source data from transaction Systems.
• Allocated the tasks to offshore team based on client’s requirements.
• Prepared the estimates based on complexity involved in the ETL and Report development by keeping
all dependent factors.
• Initiated DBA interactions for source requirements and modifications.
• Designed and developed the logic for handling slowly changing dimension table, loaded data by
flagging the record using update strategy for populating the desired.
• Involved in cleansing and extraction of data and defined quality process for the warehouse.
• Involved in performance tuning and optimization of Informatica mappings and sessions using
features like partitions and data/index cache to manage very large volume of data.
• Documented ETL test procedures, assumptions, and validations based on design specifications for
unit testing, system testing, expected results, preparing test data and loading for testing, error
handling and analysis.
• Used Debugger in troubleshooting the existing mappings.
• Involved in various testing activities like database testing, unit testing, system testing, performance
testing and was also responsible for maintaining of testing metrics, defect tracking.
• Involved in migration of mappings and sessions from development repository to test repository and
then to production repository.
• Involved in Unit testing, User Acceptance Testing to check whether the data is loading into target,
which was extracted from different source systems according to the user requirements.
• Created Stored Procedures to transform the Data and worked extensively in PL/SQL for various needs
of the transformations while loading the data.

5. Environment: Informatica Power Center, Oracle 10g, TOAD, Business Objects, JIRA, Version Manager and
Remedy.
Project # 4
Client: Presbyterian Health Plan and Insurance Company, Chennai Jan 2012 –Mar 2012
Work Location: Chennai, India
Role: ETL and BI Developer
Project Description:
The purpose of this project is to automate the GTF form for renewing existing business, processing new group
business (Large, Small, Commercial, ASO and SCI) through the IBM WebSphere Lombardi v7.5 platform. The
GTF system will be sued by internal stakeholders (Sales, Underwriting, Enrolment, and Finance) to review
and/or validate information pertaining to either a new group contract or renewing group contract.
Client Description:
PHP is health care systems and Insurance Company. Medical supplies and pharmaceutical products.
Additionally, provides extensive network infrastructure for the health care industry. Involved in Broker
describes the networks.
Responsibilities:
• Extensively worked with Source Qualifier Transformation to join the homogeneous sources
• Extensively worked with Joiner Transformation to join the heterogeneous sources
• Responsible for the Data Cleansing of Source Data using LTRIM and RTRIM operations of the
Expression Transformation
• Extensively worked with both Connected and Un-Connected Lookups
• Extensively worked with Look up Caches like Shared Cache, Persistent Cache, Static Cache, and
Dynamic Cache to improve the performance of the lookup transformations
• Created and exported Universes to the BO repository using Business Objects designer.
• Involved in defining source to target mappings and project specifications for design,
development and documentation.
• Developed Universes and Reports as per requirements.
• Initiated DBA interactions for source requirements and modifications.
• Prepared the estimates based on complexity involved in the ETL and Report development by
keeping all dependent factors.
• Initiated DBA interactions for source requirements and modifications.
• Developed multiple data providers for creating reports.
• Worked extensively with the major functionality of BO like Ranks, Alerts, Input Control,
Calculation context etc.
Project # 5
Client: Standard Charted Bank, Chennai Apr 2010 –Dec 2011
Work Location: Chennai, India
Role: ETL and BI Developer
Project Description:
eBBS - Core Banking System which handles the day to day operations of the bank. It interfaces with many
subsidiary systems like Branch Banking, ATM Transactions, Net Banking, Fund Transferring etc. It comprises of
many modules, among those modules Reports Section plays major role. It is classified as EOD and Online
Reports where EOD is categorized in to EOD, EOM, EOQ, EOH and EOY. EOD Reports spooled periodically in
the report server through the branch server and sequence of this operation dealt with batch process console.
Online Reports spooled on demand of the user. Scheduling the Reports Business Objects XI.

6. Client Description:
Standard Chartered Bank (A wholly owned subsidiary of Standard Chartered Bank Inc., UK), One of the
leading banks in the world. Currently involved 40 countries and above working. Bank can be provide the loan
and accounts management for world wide.
Responsibilities:
• Created and exported Universes to the BO repository using Business Objects designer.
• Involved in defining source to target mappings and project specifications for design,
development and documentation.
• Created and exported Universes to the BO repository using Business Objects designer.
• Initiated DBA interactions for source requirements and modifications.
• Developed multiple data providers for creating reports.
• Developed Universes and Reports as per requirements.
• Initiated DBA interactions for source requirements and modifications.
• Prepared the estimates based on complexity involved in the ETL and Report development by
keeping all dependent factors.
• Initiated DBA interactions for source requirements and modifications.
• Developed multiple data providers for creating reports.
• Worked extensively with the major functionality of BO like Ranks, Alerts, Input Control,
Calculation context etc.
Project # 6
Client: Phorotech India Pvt. Ltd., ILFS, Restaurant Information Suite, Chennai Apr 2007 –Apr 2010
Work Location: Chennai, India.
Role: Jr ETL and BI Developer
Project Description:
The financial accounting module will be a general accounting system which can handle the day to day
accounting activities of the organization till the preparation of profit and loss statements.
The transactions are Receipts, Payments, Purchase, Sales, Credit Note, Debit Note
Client Description:
Phorotech India’s Pvt Ltd ILFS One of the intermediate between the customers and banks. This organization
is good relationship with the customers like allocating the big project value cost loan. Fully translate with loan
accounting.
Responsibilities:
• Created and exported Universes to the BO repository using Business Objects designer.
• Involved in defining source to target mappings and project specifications for design,
development and documentation.
• Developed Universes and Reports as per requirements.
• Initiated DBA interactions for source requirements and modifications.
• Designed and developed complex Business Intelligence reports.
• Prepared the estimates based on complexity involved in the ETL and Report development by
keeping all dependent factors.
• Developed Universes and Reports as per requirements.• Initiated DBA interactions for
source requirements and modifications.
• Developed multiple data providers for creating reports.
• Worked extensively with the major functionality of BO like Ranks, Alerts, Input Control,
Calculation context etc.

7. ACHIEVEMENTS:
 Received ASSOCIATE of the Quarter award.
 Healthcare – Appreciation award
 Received Excellent Contributions for all my Appraisal Ratings.
 Received many appreciations from clients and high managements for responsible timely
responses and quick issue resolutions.
VISA STATUS:
Visa Type: H1B
US first Entry: 03/14/2015
Visa Max out: 2021