Romain O.
FreelancerTop Rated PlusMarTech & Tracking Specialist | GA4, GTM, Meta CAPI, Zapier, Hubspot
Member since 2023 · 100% Job Success
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WorldTop 0.02%
FranceTop 0.01%
Google AnalyticsTop 0.25%
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$21k
MRR
est. monthly
#197
World rank
of 1,045,016
$604k
Lifetime earnings
since 2023
183
Total jobs
completed
About
🏆 Upwork Expert-Vetted Talent ( Top 1% Data, Tracking and Analytics)
🏆 100% Job Success
I design and build the data infrastructure behind marketing decisions: from server-side tracking to BigQuery pipelines to AI-powered reporting, using Python to automate and connect it all.
With 10+ years in analytics and martech, I help businesses move past basic tag implementation toward reliable, scalable data architecture that survives cookie deprecation, privacy regulation, and platform changes.
🌟 Data Pipeline & Architecture
- Server-side GTM (Stape, GCP Cloud Run) for durable, privacy-compliant tracking
- BigQuery pipelines: incremental syncs, backfills, multi-source data warehousing
- Python scripts for data normalization, backfills, and pipeline orchestration
- Cloud Functions / Cloud Scheduler orchestration for automated data flows
- CRM-to-warehouse integrations (HubSpot, Salesforce) for unified reporting
🌟 Conversion Tracking & CAPI
- Meta, TikTok, and Google Ads Conversion API implementation
- Offline conversion pipelines (Google Ads Data Manager API), built with Python for hashing, deduplication, and batch processing
- Cross-platform deduplication and event match quality optimization
- GDPR-compliant PII hashing and consent-aware tracking
🌟 AI-Powered MarTech
- Python-based automation connecting marketing data to AI APIs (Claude, OpenAI)
- Automated anomaly detection on tracking pipelines and conversion data
- AI-generated reporting summaries from Looker Studio / BigQuery data
- Natural-language querying layers for non-technical stakeholders
🌟 Why work with me
- Upwork Expert-Vetted Talent, 100% Job Success, $500K+ earned
- 10+ years across e-commerce, SaaS, and multi-market clients (EU, US, France)
- I don't just implement tracking, I build the architecture and automation that keeps your data trustworthy as platforms and regulations shift
Rankings
Where Romain O. ranks by monthly revenue, worldwide, in France, and in every Upwork skill it competes in.
World#197 / 1,045,016Top 0.02%
France#1 / 7,847Top 0.01%Google Analytics#13 / 5,291Top 0.25%
Google Tag Manager#7 / 3,447Top 0.2%
Data Analytics#3 / 3,705Top 0.08%
Data Analysis#5 / 20,236Top 0.02%
Google Analytics 4#6 / 2,821Top 0.21%
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Freelancer snapshot
On Upwork since2023
Rating100% Job Success
Skills tracked5
Skills
Google AnalyticsGoogle Tag ManagerData AnalyticsData Analysis
Romain O. works mainly in Google Analytics, ranking top 0.25% of freelancers in that skill.
MRR trendSoon
Last 12 weeks
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Competitors on the board
Who ranks just above and below by MRR across all freelancers.
This freelancer is #197 of 1,045,016 across all freelancers.
RankFreelancerMRRMRR trend
MRR benchmark
Romain O. earns more than 99.98% of all freelancers we track.
Top 0.02%
among all freelancers we track
$0–$500
32%
$500–$1k
12%
$1k–$2.5k
17%
$2.5k–$5k
13%
$5k–$10k
12%
$10k–$25k
10%
$25k–$50k
3%
$50k+
1%
Romain O.'s bracket · $21k
You32%$0–$500
You12%$500–$1k
You17%$1k–$2.5k
You13%$2.5k–$5k
You12%$5k–$10k
You10%$10k–$25k
You3%$25k–$50k
You1%$50k+
Romain O. earns an estimated $21k/mo. That's 14× the typical freelancer and more than 99.98% of everyone we track.
Freelancers with no recent MRR are excluded. Only the 151,012 freelancers with active monthly revenue are ranked here.
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MRR is an estimate from Upwork's public figures - not an Upwork-official number.