Welo Data

Welocalize's AI data brand with 500,000+ experts across 100+ countries, offering annotation, RLHF, and LLM fine-tuning services.

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New York, USA HQ

1000+ company size

2023 founded

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365 jobs

Prompt Optimization Vietnamese (Vietnam)

Language Expert (General) Freelance

Vietnam May 25, 2026

Prompt Optimization Ukrainian (Poland)

General Full-time

Ukraine, Poland May 25, 2026

Prompt Optimization Spanish (Spain)

General Full-time

Spain May 25, 2026

Prompt Optimization Czech (Czech Republic)

General Full-time

Czech Republic May 25, 2026

Prompt Optimization German (Germany)

General Full-time

Germany May 25, 2026

Prompt Optimization Thai (Thailand)

General Full-time

Thailand May 25, 2026

Prompt Optimization Greek (Greece)

General Full-time

Greece May 25, 2026

Prompt Optimization Danish (Denmark)

General Full-time

Denmark May 25, 2026

Prompt Optimization Serbian (Serbia)

General Full-time

Serbia May 25, 2026

Prompt Optimization Bulgarian (Bulgaria)

General Full-time

Bulgaria May 25, 2026

Prompt Optimization Catalan (Spain)

General Full-time

Spain May 25, 2026

Prompt Optimization American English (United States)

General Full-time

United States May 25, 2026

Search Quality Rater - English (USA)

AI & Data Training Full-time

United States May 24, 2026

Apus: Audio Transcription Verifier Spanish (Colombia)

Audio QA / Reviewer Freelance

Colombia May 22, 2026

Apus: Audio Transcription Verifier Turkish (Türkiye)

Audio QA / Reviewer Freelance

Turkey May 22, 2026

Apus: Audio Transcription Verifier Swedish (Sweden)

Audio QA / Reviewer Freelance

Sweden May 22, 2026

Apus: Audio Transcription Verifier Polish (Poland)

Audio QA / Reviewer Freelance

Poland May 22, 2026

Apus: Audio Transcription Verifier Portuguese (Portugal)

Audio QA / Reviewer Freelance

Portugal May 22, 2026

Apus: Audio Transcription Verifier German (Switzerland)

Audio QA / Reviewer Freelance

Switzerland May 22, 2026

Apus - Audio Transcription Verifier German (Luxembourg)

General Full-time

Luxembourg May 22, 2026