Srikanth NAMA

PROFESSIONAL SUMMARY

 

·               Over 18 years of IT experience in development and implementation of various projects for Financial, Insurance, Pharmaceuticals and Telecommunication domains.

·               Over 10 years of experience in Enterprise Data Warehousing, Business Intelligence, Business Analytics, ETL and Data analysis.

·               Over 10 years experience in active participation in database design and well versed in data modeling concepts.

·               Over 10 years experience with business analysis and proficient in working with stakeholders to gather, analyze, model and well versed with various tools to capture, trace, and manage business and functional requirements.

·               Highly experienced in creating Dimensional models, ODS, Relational modeling and Enterprise wide Warehouses.

·               Worked on Dimensional and Relational Data Modeling using Star Schema / Snowflake modeling, Fact and Dimension tables, Physical and Logical data modeling using Erwin.

·               Experience in software and application development, business analysis, requirements management, mapping, business and functional specification writing, rapid prototyping, JAD sessions, workshops facilitation and brainstorming sessions.

·               Extensive knowledge in designing and developing ETL solutions using Informatica, and other open source DI tools.

·               Strong in UNIX shell scripting and developed scripts to run oracle/ETL jobs, perform daily maintenance jobs such as system health check, data base health care, application start up and shut down, house keeping tasks, to alert on database issues like data base locks, data base size alerts, file system alerts etc.,

·               Strong interpersonal and communication skills, managed culturally diverse team, proven ability to work effectively with individuals on all levels, liaison to cross-functional project teams for launch of new projects.

·               Excellent analytical, problem solving, technical, project management, training and presentation skills.

·               Extremely focused on identifying potential business opportunities. Developed business plans and presented to the management.

 

 

Education

 

·               Bachelor of Computer Science, Osmania University, India

 

Technical skills

 

Data Modeling             Star-Schema, Snowflake Modeling, Fact and Dimensional Modeling, Erwin 7.2.x/7.3.x/9.5.x, MS Visio, Model Mart

Databases                   Oracle 11g/10g/9i/8i/8.0/7.x, Ms Sql Server 2000/7.0/6.5,Teradata 12, DB2 10

ETLInformatica Power Centre 9.1/8.6/8.5/8.1/7.x, Talend, SSIS, Pentaho

ProgrammingSQL, PL/SQL, PRO*C, Shell scripting, C, C++, VB 6.0, .NET

Methodologies              SDLC, Agile (Scrum/Kanban), RUP, UML

OSUNIX (Sun Solaris, HP-UX), Windows 2008/2003/2000

Other Tools                 SQL Developer, sql*loader, Autosys, TWS, Control-M, VSS, PVCS, Star Team, TFS, CVS, TOAD, SQL Navigator, Microsoft Visio, Microsoft Office products, FTP, SFTP

 

 

 

 

 

 

Professional Experience

 

Capital One, Rolling Meadows, IL Apr 13 – Present

Data Architect/ Data Modeler                          Apr 10 – Sep 12

 

Responsibilities:

·               Involved in requirement analysis, design and development of various Data Warehouses (Mortgage, Technology, Corporate, BASEL II, Marketing etc.) to support the respective analytical platform

·               Participate in JAD sessions and guide BSA’s in capturing and articulating the requirements.

·               Analyze source systems and its data and involved in data profiling activities, which covers the originations, servicing and default subject areas of the mortgage life cycle.

·               Created logical and physical data models by adhering to the Dimensional/Third Normal Form (3NF) data modeling principles, Enterprise data modeling guidelines and MISMO standards.

·               Collaborate with enterprise architects, Platform DBA’s and data modelers in designing the enterprise level data models.

·               Designed and modeled various ODS on SQL Server and DB2.

·               Participate in Data modeling peer review forums and assisted in resolving the modeling issues faced by other modelers.

·               Contributed in firming up the enterprise modeling standards and guidelines.

·               Created various Conceptual Models for different Line Of Business (LOB) to articulate the business process and flow.

·               Worked with business and data stewards in creating metadata, which is meaningful and useful.

·               Created various reports in Erwin to extract the data dictionary (metadata) to suit different user groups.

·               Assisted Tech Leads in creating the design specifications and in creating the source to target mappings.

·               Actively involved in verifying that the data loaded into the Warehouse is as intended and the referential integrity is maintained as per the business riles.

·               Mentored Junior Modelers and BSA’s and provide direction and insight.

·               Created complex SQL scripts and stored procedures to handle complex business requirements and transformations.

·               Participated in user trainings and briefing the user community on the various data models created.

 

 

 

McKesson, Carrolton, TXOct 12 – Mar 13

Consultant/IT SME

 

Project Description: McKesson AP (Accounts Payable) uses internal shared services department MFC TS to do their reporting services. These legacy reports are built on MS Access and involve lot of manual work, which is done on a regular basis by the report analysts. MFC TS engaged us to do an assessment to consolidate and optimize their current AP reporting environment and provide a proposal to migrate them to Business Objects 4.0. The existing reports uses data from heterogeneous data sources like SAP, SAP BW, People Soft, JD Edwards and many other local systems, which is imported into MS Access and SQL server. This assessment was grouped into two stages, one for rationalizing and optimizing the existing reports and the second one to do data source mapping for each report. This extremely convoluted reporting environment was assessed with in the given timeline and the customer was extremely satisfied with the assessment as we could bring down the reports to 60% once they are consolidated in the BO environment.

 

Responsibilities:

·               Met with business to understand the reports they are currently using and captured high-level definition of the reports.

·               Worked with report analysts to understand the technical details of the reports.

·               Analyzed the reports for consolidation scope and the approach for consolidation.

·               Grouped reports to facilitate effective implementation of them on the Business Objects environment.

·               Did a mapping exercise to capture the ultimate data source for each report field. This is done for all the reports, which would later help the Business Objects report development team.

·               Worked closely with MFC TS technical lead and gave technical guidance and overview on best practices to implement business objects environment.

·               Documented all the assessment results and briefed MFC TS technical lead on the documentation for future usage.

·               Liaison between MFC TS and McKesson IT team for data provisioning efforts.

·               Involved in Tollgate review meetings to give project updates to the senior leadership team.

 

 

 

 

 

 

LPL Financials, San Diego, CANov 09 – Apr 10

Sr. DW Consultant/Data Modeler

 

Responsibilities:

·               Involved in requirement analysis, design and development of Stock Option Administration project.

·               Created logical and physical data models by adhering to the dimensional data modeling principles.

·               Developed complex mappings in Informatica to load the data from Express Option using different transformations like, Look up (connected and unconnected), Expression, Aggregate, Update Strategy, Sequence Generator, Joiner, Filter, Update Strategy Rank and Router transformations. Used debugger to test the mapping and fixed the bugs.

·               Interpreted logical and physical data models for Business users to determine common data definitions and establish referential integrity of the system for Facts and Dimensions

·               Development of the data marts based on the requirement using Informatica Power Center.

·               Since the major part of the workload was to extract data from one stage to another, created and monitored workflows and tasks using Informatica Power Center Work flow Manager.

·               Documented the mappings used in ETL processes including the Unit testing and Technical document of the mappings for future reference.

·               Designed and developed Informatica workflows/sessions to extract, transform and load the data into Target.

·               Executed sessions, sequential and concurrent batches for proper execution of mappings and sent e-mail using server manager.

·               Wrote SQL, PL/SQL codes, stored procedures and packages for dropping and re- creating indexes, to generate oracle sequences, procedures that cleans up the base automatically in case the mapping already ran, the procedure that will logically expire existing records and update specific Code, packages to incorporate business rules to sometimes eliminates transformation dependency.

·               Generating data feeds using Informatica mappings from data mart fact and dimension tables for business owners for their analysis and business decisions.

·               Configuring Mapping / Session properties to handle different frequencies of reports; FTP to remote server; mapping parameters values for the start dates, end dates and target file names.

·               Performed tuning of the mappings and workflows to overcome complexities involving SQL overrides and AGG transformation properties settings for data feeds.

·               Setting up batches and sessions to schedule the loads at required frequency using Power Center Server manager.

·               Involved in writing shell scripts to automate Pre-Session and Post-Sessions Processes.

 

 

Med Impact, San Diego, CA   Dec 08 – Oct 09

DW Architect

 

Responsibilities:

·               Performed Requirements Analysis, Process Design, Data Design, Development, Testing and Implementation of load processes and Data transformation processes.

·               Collaborated with client’s team and enterprise architecture team to design data models for PDE WMT project.        

·               Extensively worked on Informatica Power Center – Designer, Workflow Manager and Workflow Monitor.

·               Created Technical Specification documents using MS Visio and maintained Technical specification documents throughout development life cycle.

·               Extensively used ETL processes to load data from various source systems such as Oracle and Flat Files into target systems Oracle and Flat files, by applying business logic on transformation mapping for inserting and updating records when loaded.

·               Extensively used the Designer to import source and target definitions into the repository and to build mappings.

·               Extensively used Informatica Workflow Manager and Workflow Monitor to develop, manage and monitor workflows and sessions.

·               Extensively used Expression, Filter, Joiner, Lookup, Router, Aggregator and Update Strategy transformations. Used debugger to test the mapping and fixed the bugs.

·               Simplified the data flow by using a Router transformation to check multiple conditions at the same time.

·               Created Sessions, Workflows, Link Tasks, Controls and Command Tasks using Workflow Manager and monitored the workflows using Workflow Monitor.

·               Did performance tuning at mapping and session level in order to improve performance.

·               Written Shell scripts to create parameter files, update process and compress files.

·               Performed Unit tests and validates results with Business Analyst and end users.

 

 

Abbott Laboratories, Chicago, IL                                                                                                                    Jun 08 – Nov 08

Sr. DW Consultant

 

Responsibilities:

·               Working with Power Center Designer tool to develop mappings and mapplets and to extract data from source systems like Oracle, AS400 and flat files.

·               Working and fixing the data issues and code bugs in SCM GPO projects and coordinate with Operations support team to resolve them.

·               Involving in estimations based on analysis of User Requirement Specifications and Functional specification documents.

·               Participated in Data Analysis, Data Model Analysis and Impact analysis based on requirements.

·               Prepared High Level Design documents based on Function Requirement Specifications.

·               Involving in the preparation of System Detailed Design Document and Unit Test documents.

·               Creating different transformations for loading the data into targets using Joiner, Update Strategy, Lookup, Rank Transformations, Aggregator, and Sequence Generator.

·               Creating reusable transformations and mapplets to use in multiple mappings.

·               Creating Informatica mapping to update a Type2 slowly changing dimension table to keep full history.

·               Created & scheduled workflows within Informatica using Autosys scheduler tool.

·               Setup and schedule On Success tasks like Email to The ETL Team, Ops Teams and Business Analysts.

·               Develop UNIX shell scripts for various tasks such as calling ETL’s in Autosys, calling Oracle jobs.

·               Written shell scripts to monitor DB space, file system space and report ETL jobs status.

·               Increased performance by tuning transformations and mappings and resolving database issues along with the DBA.

·               Developing auto-scheduling jobs for Informatica and set the dependencies to Autosys jobs to overcome the jobs conflict while running multiple jobs multiple times in a day.

·               Working on Production Remedy Tickets and resolving the issues and bugs.

·               Working on fixing the data issues in production system.

·               Involving in the code promotions to different environments like Integration (SIT), UAT and Production.

·               Involving in the enhancements to ETL mappings.

 

 

Citibank, Singapore                                                                                                                                                 Oct 05 – Mar 08

DW Team lead

 

Responsibilities

·               Successfully managed and implemented Transactor, a regulatory DW and reporting project for Indonesia and India.

·               Consulted business partners to understand requirements and provided technology recommendations.

·               Developed application modifications/enhancements to meet established requirements and specifications for mortgage and loans projects.

·               Leading a project team of 5 developers, monitoring the deployment of individuals to ensure that they are contributing effectively whilst developing skills and experience.

·               Guided team members with technical inputs and clarified the business requirements

·               Created and maintained database objects like Tables, Views, Synonyms and Sequences

·               Using the Designer imported source and target definitions into the repository and build mappings.

·               Extensively used Informatica Workflow Manager and Workflow Monitor to develop, manage and monitor workflows and sessions.

·               Used Expression, Filter, Router, Aggregator and Update Strategy transformations. Used debugger to test the mapping and fixed the bugs.

·               Developed mappings with transformations like joiner, update strategy and lookup (Connected & Unconnected, Flat file lookups) to mould the data in required form.

·               Used Workflow manager to create, schedule, monitor, and send the messages in case of process failures. Developed several reusable transformations and Mapplets.

·               Scheduling and coordination of the Informatica tasks is done using UNIX Korn scripts.

·               Developed PL/SQL code including Procedures, Functions, Cursors and Triggers

·               Used UTL FILE package for generating various type of reports and data files.

·               Used ETL processes to load data from various source systems such as Oracle and Flat Files into target systems Oracle and Flat files, by applying business logic on transformation mapping for inserting and updating records when loaded.

·               Designed and developed complex job scheduling using TWS (Job Scheduler)

·               Analyzed long running codes and recommended the steps to overcome the performance issues

·               Effort estimation and manage the work and team until implementation

·               Participate in regular meetings with the client and suppliers and getting the approvals for various pieces of work requests/enhancements

·               Mange the day to day activities of project developments and team

·               Proactively seek the work from the client and propose new system enhancements

·               Manage the issue and conflicts related to scope, resource, cost, quality and risks of project handled

 

 

 

Citibank, Singapore                                                                                                                                                Apr 05 – Sep 05

Oracle Developer

 

Responsibilities

·               Participated in meetings conducted to gather system requirements, contributed in documenting the system and database and functionalities and requirements.

·               Analyzed the requirements and created a logical model of the Oracle database and represented the entity hierarchy and relationship using ER diagrams.

·               Physically transformed the logical model of the database by generating scripts for creating schema objects.

·               Developed registration, billing and claims modules using Pro* C, Embedded SQL [Dynamic SQL], and PL/SQL with Oracle as the database

·                     Studied the performance of embedded SQL queries and the indexes created through    EXPLAIN PLANS

·               Optimized the embedded SQL queries using statement level optimizer hints when essential, to adhere to the defined OLTP response time.

·               Prepared test conditions and setup the test environment for Unit and Regression testing.

·               Developed CRON JOB files to sequentially schedule batch processing modules of the project from a UNIX shell.

·               Provided Production System support and module maintenance as part of a team

 

 

Singapore Telecommunications, Singapore    Jul 03 – Mar 05

Oracle/Informatica Consultant

 

Responsibilities

·               Leading a project team and tracking it’s progress and contribution to achieve the project goals

·               Gathered business requirements and obtained requirements sign off.

·               Involved in the design, development, training, and implementation stages.

·               Development of Business Processes and Interfaces to integrate ICON and Third Party applications.

·               Developed complex mappings in Informatica to load the data from various sources using different transformations like Look up (connected and unconnected), Expression, Aggregate, Update Strategy, Sequence Generator, Joiner, Filter and Router transformations.

·               Prepared control files and the necessary scripts for loading flat files using SQL Loader.

·               Written shell scripts for calling the data loading tasks.

·               Provided technical solutions to the team on problem resolutions either to improve the business processes or enhance technical performance.

·               Identified any strategic problems at the earliest opportunity and ensured that the solutions are identified and implemented

·               Designed and programmed a system to capture customer interactions, orders and processing the orders

·               Directed planning and service support.

·               Ensured that the production errors were resolved within the service level agreement

·               Ensured that the performance of the system was within the agreed SLA with the customer and took pro-active steps to enhance the performance by adding indexes to the database tables and re-coding some of the programs. Since the customer interaction data was growing rapidly affecting the performance of the online functions, recommended to archive the past interaction.

·               Prepared and maintained various documents like Systems documentation, Operations manual and Module specifications.

·               Assisted the project manager in internal and external quality audits and perform team appraisals.

 

 

Jurong Town Corporation, Singapore                                                                                                                    Aug 02 – Jul 03

Sr. Consultant

 

Responsibilities

·               Requirement gathering, technical design and coding.

·               Analyzing and extracting data from heterogeneous source systems like Flat files, Excel files, XML, relational sources like Oracle and SQL Server.

·               Used ETL processes to load data from various source systems such as Oracle and Flat Files into target systems Oracle and Flat files, by applying business logic on transformation mapping for inserting and updating records when loaded.

·               Using the Designer imported source and target definitions into the repository and build mappings.

·               Extensively used Informatica Workflow Manager and Workflow Monitor to develop, manage and monitor workflows and sessions.

·               Used Expression, Filter, Joiner, Lookup, Router, Aggregator and Update Strategy transformations. Used debugger to test the mapping and fixed the bugs.

·               Massage the data by applying the business rules and then generate reports for user perusal.

·               Developed UNIX Shell scripts for running the pre/post processes and PL/SQL procedures for performing different database tasks.

·               Created Unix shell scripts to automate the flat file loading process

·               Designed project models, prepared documentation on logical and physical data models.

·               Fixed all contexts and cardinals loopholes.

·               Ensure that the project is implemented and support post cutover issues.

 

 

Model Finance Ltd., India     Aug 01 – Jul 02

Tech Lead

 

Responsibilities

·               Analyzed the requirements with the business users and come up with the technical specifications.

·               Generating the Standards screen and templates for the reports, GU interfaces.

·               Involved in creating the target databases as required by the BPIS

·               Performed both Unit and System integration testing of the Application.

·               Involved in migrating the system from development to QA and to production environments.

·               Created requirements specifications, design document, project planning, change history, unit testing documents, and system testing documents.

 

 

 

 

 

 

 

Suryachakra Seafood’s Ltd., India     Jan 01 – Jul 01

Programmer

 

Responsibilities

·               Analyzed the requirements with the business users and come up with the technical specifications.

·               Generated the Standards screen and templates for the reports, GU interfaces. Involved in creating the target databases as required by the project requirements.

·               Performed both Unit and System integration testing of the Application. Involved in migrating the system from development to QA and to production environments.

·               Developed back end interfaces using PL/SQL stored packages, procedures, functions, Collections, Object types and Triggers.

·               Developed Shell scripts for automating the daily and monthly load process.

 

 

 

Reliance systems ltd., Compage Data Products    Mar 97 – Dec 00

Programmer

 

Responsibilities

·               Wrote PL/SQL procedures for processing business logic in the database

·               Worked on various Procedures and Functions using PL/SQL

·               Used entity relationship and normalization techniques

·               Created and customized various Database triggers using PL/SQL

·               Worked on optimizing existing procedures and functions using PL/SQL

·               Creating application schema as tables, view and indexes

·               Exception handling and cursor management in PL/SQL

·               Handled pre-defined and user-defined exceptions

·               Designed the cursors and packages and implements code reusability

·               Coded triggers at various levels for cascading functionality, cross checking and for referential integrity

·               Migration of Oracle forms and reports using migration tool

·               Performed the data migration using SQL*Loader

·               Created various SQL and PL/SQL scripts for verification of the required functionalities