Data Scientist (Python & SQL) - Freelance AI Trainer

Mindrift
📍 barcelona, cataluña, Spain 💼 Full-time 🕒 Posted June 06, 2026

Job Description

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. This is a project-based role, not a permanent employment.

What This Opportunity Involves

While each project involves unique tasks, contributors may:

  • Design original computational data science problems that simulate real-world analytical workflows across industries (telecom, finance, government, e-commerce, healthcare)
  • Create problems requiring Python programming to solve (using Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, Seaborn)
  • Ensure problems are computationally intensive and cannot be solved manually within reasonable timeframes (days/weeks)
  • Develop problems requiring non-trivial reasoning chains in data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction
  • Create deterministic problems with reproduc...

Ready to Apply?

Submit your application today and join our talented team at Mindrift.

Submit Application

Job Details

  • Location barcelona, cataluña
  • Job Type Full-time
  • Category Informática y tecnología
  • Posted Date June 06, 2026
  • Application Deadline July 16, 2026