Cesar R.
FreelancerTop Rated PlusTop Rated Plus · 100% Job Success · $600K+ earned · Microsoft AI Cloud Partner. 13+ years in data, including BNY and the U.S. Department of Education.
I fix tracking and build the data layer behind it, from a single GA4 and GTM cleanup to unifying 25 sources for an eight-brand media group with an AI agent its team queries in plain language.
Most marketing analysts stop at the dashboard. Most data engineers never touch the tracking. I work on both sides, so the conversion on your site and the number in the board report come from one system, not pieces that don't connect.
THE PROBLEM I SOLVE
You're running multiple brands, divisions, or locations, and the numbers don't tie. Ad platforms claim conversions your CRM never sees. Each brand reports a little differently. Someone rebuilds the same spreadsheet every month, and by the time leadership sees a number, nobody fully trusts it.
Some clients need one tracking setup fixed this week; others need the whole data layer rebuilt. I do both, and the small jobs often show where the bigger problems are.
WHAT I BUILD
- Tracking and attribution: GA4, Google Tag Manager, Meta Pixel and Conversions API, Google Ads conversions. Clean conversion data you own, tied to the brand or location that earned it.
- Ingestion and warehouse: automated pipelines from your CRM, ad platforms, operational software, spreadsheets and APIs into BigQuery, Snowflake, or PostgreSQL.
- Modeling and metric definitions: SQL and dbt models orchestrated with Dagster, so every brand, division and report uses the same number.
- Reporting: Power BI, Looker Studio, or Tableau. By brand, by division, and rolled up.
- AI on your data: an AI agent your team can ask business questions in plain language, plus automated reconciliation between systems. Every automation ships with approval gates, an error queue, and an audit log.
KPIs get defined once in the data layer, not inside every report. AI comes last, once the data underneath is trusted.
WAYS TO START
- Tracking Audit & Fix: GA4, GTM, ad pixels and conversions checked end to end, a plain-English report, and the fixes made.
- Data Foundation, Phase 1: your highest-pain sources in one warehouse, KPIs defined once, and one dashboard everyone trusts.
- AI Agent Pilot: one agent answering your team's questions from approved data, with read-only access and an audit trail.
United States#197 / 149,029Top 0.13%
Cesar R. earns an estimated $17k/mo. That's 14.1× the typical freelancer and more than 99.97% of everyone we track.