Sigma AI
501 - 1000 employees
Founded 2008
🤖 Artificial Intelligence
🤝 B2B
Artificial Intelligence • B2B
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.
Portuguese Linguistic Project
🔥 0 minutes ago
🗣️🇧🇷🇵🇹 Portuguese Required
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Sigma AI
501 - 1000 employees
Founded 2008
🤖 Artificial Intelligence
🤝 B2B
Artificial Intelligence • B2B
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.
📋 Description
• Annotation — audio, video, image, sentence, and word validation • Categorization and conversational interaction labeling • Content creation • Correction and revision • Evaluation • Localization
🎯 Requirements
• Native or near-native proficiency in European Portuguese (Portugal) • Native or near-native proficiency in English • Degree in one of the following fields: Psychology, Paralinguistics, Speech Therapy, or Pedagogy/Education • Strong understanding of emotions in speech production • High accuracy in detecting emotional changes in speech • Excellent writing, editing, and communication skills • Proficient computer skills • Preferred (not mandatory): experience in one or more of the following — computational linguistics, corpus analysis, language data annotation, or large language model (LLM) training • Strong attention to detail
🏖️ Benefits
• Connectivity & equipment: stable internet connection • Headphones • Secure workspace with password-protected internet access
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