
501 - 1000 employees
Founded 2008
💼 Consulting
🏥 Healthcare
📦 Logistics
Consulting • Healthcare • Logistics
Sigma AI is a global company that collects, prepares, and labels high-quality training data and delivers custom, data-centric AI solutions to help organizations build ethical, human-centered machine learning systems. Through its Sigma Cognition arm it offers bespoke AI services, and its workforce of annotators and specialists supports speech, text, image, and video data annotation at scale. The company emphasizes integrity, inclusivity, and sustainability while helping clients reduce bias and scale AI responsibly.
Selected: 🇺🇸 United States – Remote USA.
Selected: 🆕 Date Added.
🕒 September 24
Tamil Translator annotating, validating, correcting, and localizing AI data for Sigma.AI. Remote freelance work across audio, video, image, sentence, and word content.
🕒 September 24
Freelance German-English linguist performing annotation, transcription, translation, and validation for Sigma.AI’s ethical AI projects. Remote work through a 24/7 online platform.
🗣️🇩🇪 German Required
🕒 September 24
Mandarin Chinese linguistic freelancer performing annotation, translation, transcription, and validation for Sigma.AI’s artificial intelligence data projects. Remote commercial contract across multiple eligible countries.
🌐 United States, United Kingdom, +3 more countries – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
👻 Ghost score 10%
🗣️🇨🇳 Chinese Required
🕒 August 25
Freelance German audio contributor recording 500 natural utterances for Sigma.AI’s voice technology projects. Completing two remote recording sessions using Android or Windows equipment.
🗣️🇩🇪 German Required