
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.
🕒 September 24
🌐 United States, United Kingdom, +3 more countries – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
👻 Ghost score 16%
🗣️🇨🇳 Chinese Required
Where this job comes from
Posted on Sigma AI's careers page, not through a job board
First seen by Remote Rocketship September 24
Still open on Sigma AI's site. Checked 34 minutes ago.

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.
• Perform linguistic project tasks including categorization, annotation, correction, transcription, evaluation, conversational interactions, voice recording, content creation, localization, and validation • Validate audio, video, images, sentences, or words • Complete tasks remotely through an online platform available 24/7 • Participate in qualification tests to assess suitability for projects
• Fluent in Mandarin Chinese; able to listen and write correctly without spelling mistakes • Fluent in English; able to listen and write correctly without spelling mistakes • Basic computer skills • Computer with minimum 4GB RAM • Microphone and webcam • Windows 10 or higher, or macOS 13 Ventura or higher • All operating system updates installed and supported by the vendor • Stable internet connection • Headphones • Secure internet location protected by a strong password • Mobile phone with Android OS for audio-collection projects • Tablets and iOS devices are not supported • Experience in data annotation or content rating preferred but not mandatory • Strong attention to detail preferred but not mandatory • Mandatory qualification tests after application
• Remote work through an online platform available 24/7 • Freelance commercial contract opportunity • Opportunity to participate in global, innovative AI projects • Ethical, transparent, and legally compliant selection processes • Professional and equitable work environment • Continuous improvement and teamwork culture
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