Dharani Gavvagi
Cottage Grove
Summary
Dynamic Technical Manager with a proven track record at Verizon, excelling in data visualization and dashboard development using Tableau and Power BI. Adept at transforming complex data into actionable insights, I thrive on collaboration and innovation, driving project success while ensuring high-quality deliverables. Passionate about leveraging cloud technologies to enhance business outcomes.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Project Lead
MN Housing Dept
04.2025 - Current
- Successfully migrated MN Housing website with 200+ pages from OCM to Drupal and hosted in Oracle Cloud.
- Participate in defining project scope, objectives, deliverables, and timelines.
- Break down high-level requirements into actionable tasks and allocate work to team members.
- Create and maintain detailed project plans, schedules, and milestones.
- Coordinate daily/weekly stand-ups, sprint planning, and retrospectives.
- Track project progress and ensure deliverables meet scope, quality, and deadlines.
- Identify risks, issues, dependencies and drive resolutions proactively.
- Ensure documentation (technical specs, test cases, release notes, etc.) is up-to-date.
- Ensure changes are documented in RTM (status: implemented, in-progress, blocked).
- Successfully setup Disaster Recovery for Drupal project in OCI.
Technical Manager
Verizon
NY
03.2022 - 02.2025
- Collaborate with project managers to define technical objectives, scope, and milestones.
- Evaluate feasibility of technical solutions and propose alternatives.
- Worked with different levels of SME’s, Product owners and Directors to create manager level dashboards, Subscriptions, Detail level reports.
- Successfully launched and monitored Pre-ordering and Store launch for the last 4 releases of Iconic devices (Iphones/Watches/Airpods) and created Leadership level dashboards or KPI’s with Year to Year, Model to Model comparison with growth %.
- Ensure requirements are translated correctly into technical deliverables.
- Worked on adhoc requirements based on feature releases with different SME’s and set up subscriptions for business users.
- Document data flow, API contracts, dashboard logic, and architecture diagrams.
- Ensure the team follows best practices in coding, ETL, and dashboard development.
- Visits to stores to understand the issues facing by representatives while placing orders and resolve those at the earliest by allocating them to the team.
- Developed complex calculated fields for the business logic, field actions, level of detail calculations, sets and parameters to include various filtering capabilities for the dashboards, and to provide drill down features for the detailed reports.
- Performed Tableau Admin duties that comprised configuration, adding users, groups, managing licenses and data connections, scheduling tasks, embedding views in the Tableau Server.
- Created Parameters, Actions, and filters etc. for detailed Visualization to meet end user needs.
- Prepared Dashboards using calculations, Level of detail, Table Calculations, Actions, parameters, calculated fields, groups, sets, and created hierarchies in Tableau.
- Performed backup and restore of Tableau server repository, Periodic old cleanup log files.
- Followed administration guidelines for server upgrades, backups, patching, performance tuning, and security, and administration of the applications.
- Telecommunications company
Technical Manager | System Analyst
Baxter
09.2020 - 12.2021
- Converted functional requirements into technical specifications and performed required data analysis, data mapping, functional testing, unit testing, and test case preparation using required tools based on project needs.
- Used Power BI to develop data analysis prototype, and used Power View and Power Map to visualize reports.
- Expertise in creating different visualizations using Slicers, Lines, Pies, Histograms, Maps, Scatter, Bullets, Heat Maps, Tree maps, etc.
- Used DAX (Data Analysis Expressions) & MDX functions for the creation of calculations and measures in the Tabular Mode & multi-dimensional Cubes.
- Implementing Azure Logic Apps, Azure Functions, Azure Storage, and Service Bus Queues for enterprise-level systems.
- Implemented Azure Storage - Storage accounts, blob storage, and Azure SQL Server.
- Implemented scheduled data refreshes with on-premises data gateways as per the business requirement.
- In Power BI developed reports by different time intelligence like year to data (YTD), Month to date (MTD), same period last year.
- Created Row level security so based on role, the end user can view the data.
- Analyzing reporting requirements and develop various Dashboards, using trend lines and reference lines.
- Utilized Tableau visual analytics and best practices like Dashboard structure, view orientation, Sizing and Layout, Data Emphasis, Highlighting, Color, Fonts, Tooltips, and performance improvement of complex dashboards/reports.
- Created various reports like Master/Detail reports, Cross Tab reports, slice and dice reports, and drill down reports, Charts using Freehand SQL and Stored Procedure as data providers.
- Extensively used analytical features in Tableau like Statistical functions and calculations, trend lines, forecasting etc. in many tableau reports.
- Defined Custom Geo Coding to extend existing role, add new role and add new hierarchies to view on Geographic maps.
Technical Lead
Sullivan Cotter
01.2018 - 08.2020
- Define the overall architecture for data visualization solutions.
- Decide on the right tools and frameworks (Tableau, Power BI for dashboards, etc.).
- Ensure the solution integrates seamlessly with data sources (databases, APIs, cloud data warehouses like Teradata, Oracle, Snowflake).
- Analyzed the source data and handled efficiently by modifying the data types.
- Extensively used Calculations, Filters, Conditions, Sorting, drill down, and Charts for creating Tableau reports.
- Extracted the tables/data from the oracle database and generated reports by using Tableau Desktop.
- Developed different types of visualizations reports like bar charts, Line graphs, Text tables, stacked bars, donut charts etc.
- Used filters, quick filters, sets, parameters and calculated fields on Tableau reports.
- Developed the complex reports using data blending.
Sr. BI/Data warehouse Developer
Walmart
Bentonville
09.2016 - 12.2017
- Identified the factors involving the performance of the reports and coordinated in creation of indexes statistics to improve the query turnaround time efficiently.
- Installed and upgraded Tableau server and server performance tuning for optimization.
- Worked on creation of user group project workbooks and the appropriate permission sets for Tableau server logons and security checks.
- 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.
- Created extracts, published data sources/workbooks to the server and refreshed extracts using Tableau server for Client Analytics Team.
- Worked closely with the business users to identify various KPI's and designed solutions to enhance business decision-making.
- Retail corporation
Sr. OBIEE Developer
Cisco
San Jose
11.2013 - 05.2016
- Responsible for server administration, code migration, security implementation and management, OBIEE upgrade from 10g to 11g.
- Configured Sales and Product Facts using OBIEE Answers and generated reports using BI Publisher as per the business requirement.
- Created action filters, parameters and calculated sets for preparing dashboards and worksheets in Tableau.
- Migrated OBIEE reports to Tableau.
- Restricted data for particular users using Row level security and User filters.
- Developed Tableau visualizations and dashboards using Tableau Desktop.
OBIEE Developer
RBS
02.2013 - 10.2013
- Leading Implementation of Oracle BI Publisher Enterprise Edition 11.1.1.7. Setting up and documenting security groups, data access and query privileges.
- Created dimension hierarchies& level based measures in OBIEE BMM layer based on requirements and Time Series Functions.
- Involved in utilizing two types of Load plans were created for loading the Source system data into the OBIA Data warehouse (Domain Load plan and Data load plan).
- Successfully troubleshooted the ODI connection with oracle by fixing the tnsnames.ora file, TNS listener and DNS entries.
- Created ODI packages, scenarios using interfaces, variables, procedure.
- Used ODI commands like OdiFileMove, OdiFileAppend, odiFilecopy etc.
Education
Bachelor’s Degree - Information Technology
JNTUH
IndiaSkills
- Tableau Desktop
- Tableau Server
- OBIEE
- BI Publisher
- Informatica
- Power BI
- Power Query
- ORACLE 9i/8i
- SQL Server 70/2000
- PostgreSQL
- JDE
- SQL Server
- Snowflake
- My Sql
- SQL
- Plus
- TOAD
- Windows 7 Enterprise
- Mac OS
- Unix
- XP
- Vista
- PowerShell
- C
- C
- Java
- AWS
- GCP
- Azure
- OCI
- Azure DevOps
- TFS
- JIRA
Certification
- Tableau Desktop Specialist, Tableau Software, 02/22
- Oracle Business Intelligence Foundation Suite 11g Essentials Certified, 06/13
- Azure DevOps training
Timeline
Project Lead
MN Housing Dept
04.2025 - Current
Technical Manager
Verizon
03.2022 - 02.2025
Technical Manager | System Analyst
Baxter
09.2020 - 12.2021
Technical Lead
Sullivan Cotter
01.2018 - 08.2020
Sr. BI/Data warehouse Developer
Walmart
09.2016 - 12.2017
Sr. OBIEE Developer
Cisco
11.2013 - 05.2016
OBIEE Developer
RBS
02.2013 - 10.2013
Bachelor’s Degree - Information Technology
JNTUH