Mortgage Underwriter - Freelance AI Trainer

Mindrift • Barcelona, Catalonia • Posted June 24, 2026

Position Overview

Please submit your CV in English and indicate your level of English proficiency. 

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

What this opportunity involves

While each project involves unique tasks, contributors may:

  • Evaluate AI-generated mortgage underwriting decisions across loan types (conforming, jumbo, FHA, VA, cash-out refinance);
  • Create test cases involving qualifying income calculations for self-employed borrowers using Schedule C, K-1, and Schedule E;
  • Draft and audit conditional approval letters and adverse action notices for Reg B / ECOA compliance;
  • Distinguish Fannie Mae / Freddie Mac selling guide rules from lender overlays in jumbo and non-conforming loan scenarios;
  • Document problem ...