Ragavi Ravi

Senior Data Visualization/Tableau Developer

Summary:

Overall 5+ years of experience in the IT Industry and worked on Tableau Desktop, Tableau

Server and efficient in connecting various data sources.

5+ years of extensive data analyst, Tableau Experience in Enterprise Environment, in Tableau

10.5/10.3/10.1/ 9.x/8.x/7.x as a Developer and Admin.

Strong hands on experience in implementing dash boards, data visualization and analytics using Tableau Desktop and Server.

Actively involved in testing new/upgraded features like new Visualizations, Forecasting, Data

Blending, Parallelized Dashboard, Hyperlink Objects, Color-coded tabs etc. in Tableau 10

desktop/Server.

Expertise Configuring Repository, Create/Manage Dashboards, Reports/Answers and Building Physical, Business Model and Presentation Layer.

Strong experience in creating tableau scorecards, dashboards using stack bars, bar graphs, heat map, pareto chart, scattered plots, geographical maps, Gantt charts using Show Me functionality.

Aided in the development of style guide for the development of design of components, BI visualisations, data source creation and naming.

Expertise in generating quick/context/global filters, parameters and calculated fields, table calculations, joins

Developed POCs by building reports and dashboards using Tableau 10.1 to demonstrate quick

wins.

Responsible to Deliver Proof of Concepts using, understanding customer business requirement.

Experience in the maintenance and scheduling of Tableau Data extracts using Tableau server and the Tableau Command utility.

Strong Data modelling experience using Dimensional data modelling and knowledge of T-SQL, SQL, PL/SQL, Teradata, Functions, Packages, Triggers, and scripting languages.

Well-versed with Microsoft Office Suite including Office365, Lync, MS Visio, MS Access, Project, Power Query, Power Pivot, DAX, SharePoint, and SharePoint Design.

Configuring Complex dashboards and workbooks

Experience in Configuring Interactive Dashboards with Drill-Down capabilities using Filters, sets, groups, calculated fields, parameters, bins, sorting etc. and Dashboard prompts.

Combined multiple data sources using blending in Tableau to keep track of sensor data, operator inputs, and real - time systems all in one dashboard.

Worked extensively with Advance analysis Actions, Calculations, Parameters, Background Images, Maps, Trend Lines, Statistics and Tableau Calculations.

Experience in handling Tableau Admin activities granting access, managing extracts and installations.

Extensive knowledge in various reporting objects like Facts, Attributes, Hierarchies, Transformations, filters, prompts, Calculated fields, Sets, Groups, Parameters etc., in Tableau.

Strong communication and interpersonal skills to interact with business partners to identify information needs and business requirements for reports.

Ability to handle multiple tasks concurrently and meet the deadlines.

EDUCATION:

University of Texas at Arlington, Arlington, TX

Master of Science in Industrial Engineering

Anna University, Chennai, India

Bachelor of Engineering in Electronics and Instrumentation Engineering

Technical Skills:

Specialties

Data Visualization, Business Intelligence BI, Software Management and Data Collection

BI Tools

Tableau 7.0, Tableau 10.5/10.3/10.1/ 9.x/8.x

Relational Databases

MS SQL Server 2005/2008/2012, Oracle 8i/9i/10g/11g, MS Access

Tools and Packages

SQL Server Management studio, Toad, Microsoft Visual Studio

Languages

SQL, PL/SQL, C, C++, HTML, XML, XSL

Operating Systems

Windows 2000/2003,2008 Server, Windows 95/98/2000/XP

Work Experience: -

Sr. Tableau Developer

OnBlick – Irving, TX

Nov 2018 to till now

Responsibilities:

As Tableau Developer, primary activities included designing technology roadmap for Tableau; product installation and implementation development of insightful dashboards;

Created Tableau dashboards using stack bars, bar graphs, scattered plots, geographical maps, Gantt charts etc. using show me functionality.

Created interactive data visualizations in Tableau, using relational and aggregate data sources.

Created complex dashboard using parameters, sets, groups and calculations and drill down and drill up in worksheets and customization using filters and actions.

Solving P1 priority tickets for issues for the users in the production.

Implemented row level security for the tableau dashboards and used various advanced table calculations for the dashboards.

Blended data from multiple databases into one report by selecting primary keys from each database for data validation.

Developed PL/SQL views master tables for automatic creation of primary key values.

Developed story telling dashboards in Tableau Desktop and published them on to Tableau Server which allowed end users to understand the data on the fly with the usage of quick filters for on demand needed information.

Created extracts and published data sources on tableau Server for the users from various databases in SQL Server/ Oracle. Used complex joins and validated them by running and tuning long SQL queries.

Tested dashboards to ensure data was matching as per the business requirements and if there were any changes in underlying data

Scheduled data refresh on Tableau Server for weekly and monthly increments based on business change to ensure that the views and dashboards were displaying the changed data accurately.

Tested dashboards to ensure data was matching as per the business requirements and if there were any changes in underlying data.

Maintaining the application, creating change controls

Environment: Tableau Desktop 10.5/10.3, Tableau Server 9.3, MS Office Suite, SQL Server, PL/SQL, MS Excel.

Sr. Tableau Developer

T-Mobile – Bellevue, WA

July 2017 to Oct 2018

Responsibilities:

Built Strategic, Analytical and operational dashboards using Tableau.

Created complex dashboard using parameters, sets, groups and calculations and drill down and drill up in worksheets and customization using filters and actions.

Responsible to Deliver Proof of Concepts using, understanding customer business requirement.

Secured Tableau server to protect the Tableau environment, security group and AWS Direct Connect.

Used Microsoft Power BI Power Query to extract data from external sources and modify data to certain format as required in Excel,

of the organization and implemented Tableau standard operational process for granting user access and for publishing workbooks, data sources & migration between Tableau Server environments.

Disaster Recovery setup, including Backup Primary setup and configuration.

Designed and developed remarkable Data Visualizations utilizing R

Extensive experience in configuration, implementation and maintenance for disaster recovery solutions using log shipping, transactional & merge replication in SQL server 2012.

Developing various tableau dashboards prototype for the future uses and conversion of current excel reports into tableau.

Implemented row level security for the tableau dashboards and used various advanced table calculations for the dashboards.

Created Bullet graphs to determine profit generation by using measures and dimensions data from SQL Server and MS Excel.

Blended data from multiple databases into one report by selecting primary keys from each database for data validation.

Created organized, customized analysis and visualized projects and dashboards to present to Senior Level Executives.

Hands-on development, assisting users in creating and modifying worksheets and data visualization dashboards.

Tableau dashboards embedding into Salesforce for the continuous data experience for the users, built custom tableau dashboards for the Salesforce for accepting the parameters from the Salesforce to show the relevant data for that selected object.

Setting up active directory on the tableau server for the effortless password management for the single sign on in the Salesforce and to view the embedded dashboards.

Designed and developed the reports per the requirements using Tableau and Power Map.

Ensure user login access, server level, and database level access to application users and developers.

Connecting and extraction to different data sources including Teradata, MS SQL Server, flat files using ODBC driver installation on the tableau server machines.

Developed tableau dashboard landing page for the embedding into Salesforce in order to provide integrated views and navigation inside Salesforce for the users.

Developed various dashboards for non-Salesforce group of users for their specific goals of understanding data.

Creating daily, weekly and monthly reports in Cognos for the internal teams and external vendors.

Addressing the Performance and other Production issues with the Cognos reports.

Best practices to enhance the response time of tableau dashboards and speed for the embedded dashboards.

Designed and deployed database, and developed the Pending Transactions feature, to ensure strict data consistency across multiple records in multiple tables.

Tableau administration and development roles and helping the client with the issues of data connections, extraction and maintenance.

Tableau server and desktop upgrade from 8.3 to 9.0.

Environment: Tableau Desktop 8.3/9.0, Tableau Server, Cognos 10.2, MS Office Suite, SQL Server, PL/SQL, R Programming, Teradata, MS Excel.

Tableau Developer/Data Analyst

Solix Technologies – Hyderabad, India

June 2014 to July 2016

Responsibilities:

Created Complex workbooks and Dashboards by connecting to multiple data source (Teradata) using data blending.

Involved in conducting trainings to user on interact, filter, sort and customize views on an existing visualization generated through Tableau desktop.

Extensively participated in translating business needs into Business Intelligence reporting solutions by ensuring the correct selection of toolset available across the Tableau BI suite.

Created complex data Views using multiple measures, also used sort, Filter, group, Create Set functionality.

Designed and developed two main technological components, a Database to store data of all transactions related with each purchase and a Data Warehouse to store historical forecast and real demand by vaccine and by country, to measure the forecasting changes.

Published various kinds of live, interactive data visualizations, dashboards, reports and workbooks from Tableau Desktop to Tableau servers.

Assisted users to publish and collaborate reports via a web browser & embed Tableau views in other web applications like SharePoint.

Created Advance connections, join new tables, create & manage Extract and Monitor Queries using SQL Assistant.

Extensively worked on Tableau Desktop, by creating Sears & Kmart Complex reports & Dashboards.

Published Reports, workbooks & data source to server and exporting the reports in different Formats.

Good experience in using URL's, Hyperlinks, Filters for developing Complex dashboards

Worked creating Aggregations, calculated Fields, Table calculations, Totals, percentages using Key Performance Measures (KPI) and Measure

Environment: Tableau 7.0, SQL Server 2008 R2, SSRS, SSIS, MS Excel, T-SQL.

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