Sigma AI

Madrid-headquartered global AI training-data services company. Powers 4 of the 5 largest global tech giants across 600+ languages and dialects.

AI Training AI Training Data / Data Annotation Services

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Madrid, Spain HQ

201-1000 company size

Open jobs at Sigma AI

84 jobs

Turkish Linguistic Project - macOS (Remote) -- Sigma AI

Language Data Full-time

Turkey Jun 25, 2026

Proyecto lingüístico en español - macOS (Remoto) -- Sigma AI

Language Data Full-time

Remote (Global) Jun 25, 2026

Arabic Linguistic Project - macOS (Remote) -- Sigma AI

Language Data Full-time

Remote (Global) Jun 25, 2026

French Linguistic Project - macOS (Remote) -- Sigma AI

Language Data Full-time

Remote (Global) Jun 25, 2026

German Linguistic Project - macOS (Remote) -- Sigma AI

Language Data Full-time

Germany Jun 25, 2026

British English Linguistic Project - macOS (Remote) -- Sigma AI

Language Data Full-time

United Kingdom Jun 24, 2026

Telugu Linguistic Projects (Remote) -- Sigma AI

Language Data Full-time

Remote (Global) Mar 27, 2026

Marathi Linguistic Projects (Remote) -- Sigma AI

Language Data Full-time

Remote (Global) Mar 26, 2026

Portuguese Linguistic Projects (Remote) -- Sigma AI

Language Data Full-time

Remote (Global) Mar 26, 2026

Mandarin Chinese Linguistic Projects (Remote) -- Sigma AI

Language Data Full-time

Remote (Global) Mar 26, 2026

Dutch Linguistic Projects (Remote) -- Sigma AI

Language Data Full-time

Netherlands Mar 26, 2026

German Linguistic Projects (Remote) -- Sigma AI

Language Data Full-time

Germany Mar 24, 2026

Marathi Translator (Remote) | Sigma AI

Language Data Full-time

Remote (Global) Mar 20, 2026

Romanian Translator (Remote) | Sigma AI

Language Data Full-time

Romania Mar 13, 2026

Tamil Translator (Remote) | Sigma AI

Language Data Full-time

Remote (Global) Mar 10, 2026

Deutsche Audiodatenerfassungsprojekte (Remote)

Language Data Full-time

Remote (Global) Feb 6, 2026

German Linguistic Projects (Remote)

Language Data Full-time

Germany Jan 23, 2026

British English Audio Collection Projects (Remote)

Language Data Full-time

United Kingdom Jan 22, 2026

American English Audio Collection Projects (Remote)

Language Data Full-time

United States Jan 22, 2026

Australian English Audio Collection Projects (Remote)

Language Data Full-time

Australia Jan 22, 2026