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David D.

David D.

Data Scientist | AI & Machine Learning Engineer

Data scientist and AI/ML engineer. I specialize in building hybrid AI, ML, database focused solutions and workflows. I have worked on predictive modeling, KPI analysis, and prioritization systems, helping organizations harness their data effectively. I excel at clear communication, rigorous problem-solving and timely project execution. If you're looking for a data expert who can turn messy data and complex domain knowledge into actionable strategies and workflows, you just found it.

🇪🇸Barcelona, Spain$30/hr100% JSSSince Mar 2026
GlobeUpwork

Earnings and projects

MRR
$759

Last 6 months ÷ 6

World#60,222 / 412k
🇪🇸Country#552 / 4,023
Revenue, last 30 days
$0

Last 6 months: $4.6k

Total earnings
$4.8k

Billed in all: $5.1k

World#258,536 / 412k
🇪🇸Country#2,541 / 4,023
Per project
$1.2k

$1.5k in the last 6 months

World#110,628 / 412k
🇪🇸Country#1,068 / 4,023
Projects, last 6 months
3

Across 4 contracts

25% fixed75% hourly
World#66,479 / 412k
🇪🇸Country#598 / 4,023
Projects in all
4

Across 5 contracts

40% fixed60% hourly
World#283,741 / 412k
🇪🇸Country#2,724 / 4,023

Earnings, last 30 days

$5.1kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$4.9k$5.0k$5.1k$5.2kOct 8Oct 23Nov 7

Skill rankings: Top 7% in Predictive Model

Ranked by MRR among everyone on Upwork with the skill.

  1. 2Predictive Model28 freelancers · 🇪🇸 #1Top 7%
  2. 3Data Analytics Expertise6 freelancers · 🇪🇸 #1Top 50%
  3. #4Large Language Model Fine-Tuning41 freelancers · 🇪🇸 #1Top 10%
  4. #8Data Analytics Framework42 freelancers · 🇪🇸 #1Top 19%
  5. #24ai agent orchestration70 freelancers · 🇪🇸 #1Top 34%
  6. #45Predictive Analytics294 freelancers · 🇪🇸 #3Top 15%
  7. #72Financial Analysis & Valuation498 freelancers · 🇪🇸 #1Top 14%
  8. #77Agentic Workflows340 freelancers · 🇪🇸 #1Top 23%