E2F

Human-in-the-loop AI data services and localization (annotation, evaluation, translation in 200+ languages) for AI/LLM training. Now branded TrustScale. Founded 2004, San Jose. Remote-friendly.

Services AI Data Services / Localization
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Remote-friendly (HQ San Jose, CA; global contributor network) HQ
51-200 company size
2004 founded

Open jobs at E2F

12 jobs

AI Fact-Checking & Response Evaluation Reviewer (Portuguese)

Response Rater Full-time
Brazil Nov 5, 2026
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Remote Home Video Recording Contributor - LATAM

Home Activities Video Full-time
Ecuador $5 per approved video hour Nov 3, 2026
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French AI Response Evaluator – Remote Freelance

Response Rater Full-time
Belgium Nov 2, 2026
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French AI Response Evaluator (Remote)

Response Rater Full-time
Senegal Nov 2, 2026
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French Fact-Checking & Content Analyst

Response Rater Full-time
Cameroon Nov 2, 2026
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Remote Home Video Recording Contributor — LATAM

Home Activities Video Full-time
Brazil, Ecuador $5 per approved video hour Oct 27, 2026
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AI Quality Reviewer - Portuguese Language

Response Rater Full-time
Brazil Oct 22, 2026
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FR – French Fact-Checking Annotators

Response Rater Full-time
Canada, Central African Republic Oct 16, 2026
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AI Quality Reviewer -French Language

Response Rater Full-time
Algeria Oct 9, 2026
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AI Research & Evaluation Analyst — Remote, Project-Based

LLM Evaluator (English) Full-time
United States Sep 22, 2026
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AI Claims Reviewer - Arabic Language

Response Rater Full-time
Egypt Aug 20, 2026
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AI Claims Reviewer - Hindi Language

Response Rater Full-time
India Aug 20, 2026
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One email per week, 5 hand-picked roles.