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David Umanah
@david_umanah
Excel, Power Query, Power BI Data Analyst
Nigeria
Englisch
Über mich
Hi, I'm David, a Data Analyst skilled in Excel, Power Query, and Power BI.
I help businesses and individuals organize their data, automate repetitive tasks, and turn raw information into clear, useful reports.
My services include:
Excel data cleaning, formatting, simple formulas, and conditional formatting.
Power Query data cleaning, transformation, and report automation.
Power BI dashboard design and optimization.
I'm happy to help fixing an Excel file, cleaning a dataset, automating a report, and improving your Power BI dashboard.
Let's make your data work better for you.
Kompetenzen
David Umanah
offline •
Durchschnittliche Antwortzeit: 1 Stunde
Meine Dienstleistungen
Datenbereinigung
I will clean, format and organize your excel data
Datenbereinigung
I will automate your excel data using power query
Portfolio
Arbeitserfahrung
Data Analyst
IHS Towers
Dec 2023 - Present • 2 yrs 10 mos
* Analyze operational and energy data across 3,000+ telecom sites to identify trends, gaps, and improvement opportunities. * Develop and maintain Excel, Power Query, and Power BI reports for site performance, grid availability, token usage, and energy consumption. * Clean, transform, reconcile, and automate operational datasets to improve data accuracy and reporting efficiency. * Develop data-driven models and trackers, including a token forecasting model with ~95% prediction accuracy. * Analyze maintenance and vendor performance data to identify recurring issues and support a 60% reduction in grid fault resolution time. * Provide actionable insights and performance reports to support management decision-making and operational planning.
