
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 Kingdom – Remote (UK).
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.
🌐 United States, United Kingdom, +1 more countries – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🌎 Translator / Interpreter
👻 Ghost score 10%
🕒 September 24
Dutch linguistic freelancer annotating, translating, and validating multimodal data for Sigma.AI’s ethical AI projects. Completing remote tasks through an always-available online platform.
🌐 Netherlands, United Kingdom, +4 more countries – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
👻 Ghost score 10%
🗣️🇳🇱 Dutch 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
🕒 September 7
Freelance linguist annotating, translating, and validating Hindi, Tamil, and English data. Supporting Sigma AI’s global artificial-intelligence data collection and annotation projects remotely.
🌐 India, United Kingdom – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
👻 Ghost score 26%
🗣️🇮🇳 Hindi Required
🕒 August 25
Freelance Japanese audio annotator collecting 500 natural speech utterances for Sigma.AI’s AI technology. Completing remote recording sessions through a 24/7 online platform.
🗣️🇯🇵 Japanese Required