David Olatunji-Aguda
@davidolatunji-aguda
I build BI dashboards and SQL data pipelines that improve reporting speed, accuracy, and self-service analytics.
NigeriaWhat I'm looking for
I've built Power BI and Looker Studio dashboards, SQL-driven ETL pipelines, and reporting automations for 10Alytics and Nebiant Analytics. My work supports sales, marketing, finance, training, and customer support teams with reliable KPI reporting.
At 10Alytics, I developed 10+ dashboards and reports, reduced report preparation time by 40%, and automated reporting workflows to cut generation time by 50%. I also improved SQL data retrieval efficiency by 30% through query restructuring and indexing.
At Nebiant Analytics, I built ETL pipelines for corporate performance dashboards, standardized KPI definitions and data dictionaries, and implemented Power BI Row-Level Security. I work across PostgreSQL, Google BigQuery, Power BI, Tableau, Python, Google Apps Script, and n8n to make analytics repeatable and accessible.
Experience
Work history, roles, and key accomplishments
Data Analyst / BI Analyst
10Alytics
Jan 2026 - Present (8 months)
Developed automated data validation pipelines and interactive dashboards in Power BI and Tableau, reducing data errors by 25% and report preparation time by 40%. Optimized SQL performance and automated reporting workflows, cutting report generation time by 50%.
Data Analyst / Data Associate
Nebiant Analytics
Sep 2024 - Dec 2025 (1 year 3 months)
Designed Power BI dashboards tracking Balanced Scorecard metrics, improving KPI visibility by 20%. Built SQL-driven ETL pipelines and standardized KPI definitions, reducing reporting cycle time by 25% and increasing governance maturity by 30%.
Intern
Chevron Nigeria Limited
Sep 2023 - Nov 2023 (2 months)
Collaborated with analysts to streamline system reimaging and workstation setup, reducing reimaging time by 25% and setup time by 40%. Supported video conferencing project delivery, reducing delivery time by 20%.
Intern
BaseOne
Aug 2023 - Nov 2023 (3 months)
Collaborated on RESTful API development to improve platform productivity by 10%. Debugged and troubleshot code to reduce product errors by 15% and implemented new product features that improved client satisfaction.
Education
Degrees, certifications, and relevant coursework
University of Ilorin
Bachelor of Engineering, Electrical and Electronics Engineering
Bachelor of Engineering in Electrical and Electronics Engineering from the University of Ilorin, Kwara State, Nigeria, completed in 2024.
DataCamp
Introduction to SQL, SQL
Completed the Introduction to SQL course on DataCamp in 2023.
DataCamp
Intermediate SQL, SQL
Completed the Intermediate SQL course on DataCamp in 2023.
Udemy
Complete Introduction to Microsoft Power BI, Power BI
Completed the Complete Introduction to Microsoft Power BI course on Udemy in 2023.
Udacity
AI Programming with Python Nanodegree, Artificial Intelligence
Completed the AI Programming with Python Nanodegree on Udacity in 2022.
Jobberman
Soft-Skills Training, Soft Skills
Completed the Jobberman Soft-Skills Training in 2022.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Salary expectations
Skills
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