Ethel Ajanga

Ethel Ajanga

Certified Tableau Developer
United States of America

About Me

Experienced Developer skilled at interactive Visualization/Reporting, ETL, Data Modeling, & KPI Analytics. BI Developer with a passion for storytelling with the intent to answer business needs.

Experience

Senior Data Analyst

Karsun
Jan 2023 - Present · 3 years 9 months

Provide support to General Services Administration by interacting with business users to understand their data needs and generate visual reports that meet their requirements.
● Oversee the end-to-end development lifecycle of BI projects, from requirements gathering to deployment.
● Utilized my strong understanding of advanced Tableau features including calculated fields, parameters, table calculations, row-level security, joins, data blending to generate reports.
● Perform data analysis to identify trends, patterns, and opportunities for improvement within the Federal Government context.
● Addressed the challenges to data integration, profiling the data for peculiar anomalies in the data source, and subsequently reworked the integration efforts.
● Prepare and conduct presentations or training sessions on non-technical and technical topics to the user community.

Tableau Developer

TCC Fort Worth, TX
Jan 2026 - Jun 2026 · 5 months

<p>Designed, developed, tested, and maintained Tableau functional reports based on user requirements.<br>
Help administer & configure Tableau instances for accuracy and best practices.<br>
Automate key areas of business processes to improve efficiency within HR and Accounting departments.<br>
Also involved in administration tasks such as setting permissions, managing ownerships, and providing access to approved users.<br>
Optimize Indexes, Views, Stored Procedures and Functions using Oracle.</p>

Senior Data Analyst

Karsun Solutions, VA
Jan 2023 - Sep 2023 · 8 months

<p>Provide support to General Services Administration by interacting with business users to understand their data needs and generate visual reports that meet their requirements.<br>
Oversee the end-to-end development lifecycle of BI projects, from requirements gathering to deployment.<br>
Utilized my strong understanding of advanced Tableau features including calculated fields, parameters, table calculations, row-level security, joins, data blending to generate reports.<br>
Perform data analysis to identify trends, patterns, and opportunities for improvement within the Federal Government context.<br>
Addressed the challenges to data integration, profiling the data for peculiar anomalies in the data source, and subsequently reworked the integration efforts.<br>
Prepare and conduct presentations or training sessions on non-technical and technical topics to the user community.</p>

Sr. Tech Consultant

Perficient, Inc. St. Louis, MO
Feb 2022 - Aug 2022 · 6 months

<p>Participate in all aspects of the software development lifecycle which includes estimating, technical design, implementation, documentation, testing, deployment, and support of applications developed for a variety of clients.<br>
Develop and maintain reports, report schedules, dashboards, publishing, and user administration.<br>
Research data issues associated with reports and data accuracy.<br>
Use Jira to manage user stories, complete tasks, begin dashboard development and access blockers and testing.<br>
Experience working with Tableau Server, Tableau Prep, and Tableau Online.<br>
Help business partners and stakeholders understand best practices for needed insights: KPIs and visualizations, dashboard design, and approaches to effectively answer their questions and help them run their business unit/functional area.<br>
Modify SQL Queries to improve performance and develop reference documents or reports for the finalized project for the end client (AAIS).</p>

Sr. Tableau Developer

Keller ISD, Keller, TX
Jul 2019 - Dec 2021 · 2 years 5 months

<p>Play a key role in the architecture, delivery and governance of reporting and data delivery.<br>
Created Tableau Dashboard designing with effective data visualization of large data volumes analyzing student performance using various data sources (SQL server, oracle, spreadsheets, etc).<br>
Extract data from databases and data warehouses for reporting and to facilitate sharing between multiple data systems.<br>
Extensively used snowflake to manage HR Dashboards.<br>
Generated talent management dashboards using tableau and identified KPI’S that allowed companies to retain talent, avoid turnover rates and subsequently cut cost.</p>

Tableau Developer

International LT, Fort Worth, TX
Jun 2017 - May 2019 · 1 year 11 months

<p>Provide support for the district’s enterprise applications, database environments, and data integration processes by analyzing problems and solutions.<br>
Model data warehouse to best meet the needs of various departments.<br>
Maintain and QA existing reports on our Tableau Server as well as existing integrations.<br>
Built complex calculations to monitor student progress throughout the year by generating monthly quarterly and end of year reports.<br>
Recommended, scheduled, and performed software improvements and upgrades.<br>
Experience in publishing reports, data source and dashboards, scheduling, refresh, creating projects, groups, and users.</p>

Skills

Analytics Data Analysis Professional Information Systems Management Data Mining Microsoft Access Statistical Analysis System (SAS) Structured Query Language (SQL) Data Analysis Skills Power BI R Programming Language (R) Tableau Databases Data Analysis Interactive Visualization Reporting ETL Data Modeling KPI Analytics Calculated Fields Parameters Table Calculations Row-Level Security Joins Data Blending Data Integration Data Profiling Presentations Training Jira Tableau Server Tableau Prep Tableau Online Dashboard Design SQL Server Oracle Snowflake Stored Procedures Functions
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