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David Olufemi
@rexthefirst
Professional Data Analyst
Nigeria
English
About me
Hello,
I'm David, a Data Visualization Specialist and Marketing Analyst who turns messy marketing data into dashboards and reports people actually use. I currently manage monthly reporting for 20+ client accounts, building Looker Studio dashboards that combine GA4, Search Console, WhatConverts and social data. I also work in Power BI, Tableau and Excel.
With a background in Data Analytics, Computer Science and Statistics, I fix tracking gaps, clean up broken data blends and write clear summaries that explain what changed and why.
Let's make your data easy to read.
Skills
David Olufemi
Offline •
Average response time: 1 hour
See my services
Reports
I will build report dashboards in power bi, looker studio, tableau or excel
Data Dashboards
I will build looker studio dashboards, reports and monthly maintenance
Portfolio
Work experience
Marketing Analyst
DZ and Associates • Freelance
Jul 2026 - Present • 3 mos
Freelance Marketing Analyst on retainer with DZ + Associates, a US digital marketing agency serving insulation and home services companies. I own monthly performance reporting across 20+ client accounts, turning SEO, leads, social media and PPC data into client-ready reports. Key work: - Built and maintain Looker Studio dashboards for 24 clients, pulling GA4, Search Console, WhatConverts and social data through Windsor.ai - Rolled out a new Total Contact Volume section across every dashboard, combining form fills and tracked calls into one reliable lead metric - Diagnosed data blend and lead classification errors that were undercounting leads, and fixed tracking gaps across Google Business Profile listings - Designed a Microsoft Clarity website behavior report template covering conversion funnels and user friction signals - Built a YouTube analytics dashboard for a supply brand client - Write monthly summaries with year over year analysis that explain what drove each change, not just the numbers
9 Reviews
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Rating Breakdown
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1-5 out of 9 Reviews
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tech__agency_
United States
Excellent work! The seller delivered exactly what I needed. The Looker Studio report is clean, professional, well-structured, and provides clear insights from my Microsoft Clarity data. Communication was great, and the project was completed as discussed. I’m very satisfied with the final result and would definitely recommend his work.
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the_rightvalue
United Kingdom
Seller's Response
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akinyemialabi96
United States
Helpful?
mckinley8334
Netherlands
Ongoing collaboration
Helpful?
akgabriel
Canada
Ongoing collaboration
Thanks again for delivering on time and providing a great final look. It's been a pleasure working with you, and I will definitely keep you in mind for future projects!
Seller's Response
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