Join Sigma .AI – Shaping the Future of Artificial IntelligenceWhat is Sigma?Sigma is a leading general technology company specializing in data collection and annotation for Artificial Intelligence. With over 30 years of experience, offices in Spain, the US, and the UK, and operations in more than 700 languages, we support top multinational clients in developing cutting-edge AI solutions.Soft Skills We ValueAre you a proactive professional who thrives on challenges, values collaboration, and approaches every task with empathy, integrity, and a passion for learning? If so, we’d love to hear from youWhat Will You Do?CategorizationAnnotationCorrectionTranscriptionEvaluationConversational interactionsVoice recordingContent creationLocalizationValidation of audio, video, images, sentences, or wordsAll tasks are remote, performed through an online platform available 24/7.This opportunity is offered for freelancers under a commercial contract.RequirementsBachelor’s degree in Linguistics, Languages, Literature,



or a related fieldLinguist with native or near-native proficiency in Mandarin ChineseFluent in English with the ability to accurately listen and write with excellent spelling and attention to detailSolid command of linguistic theory, grammar, and language structureStrong writing, editing, and communication skillsComputer literacy (Preferred (but not mandatory))Experience in data annotation or content ratingStrong attention to detailTechnical RequirementsComputer:Minimum 4GB RAMMicrophone and webcamOperating system:Windows 10 or highermacOS 13 Ventura or higherAll OS updates installed and supported by the vendorConnectivity & Accessories:Stable internet connectionHeadphonesSecure internet location, protected by a strong passwordFor audio-collection projects only:Mobile phone with Android OSTablets and iOS devices are not supportedImportant NotesSigma .AI does not hire through third parties. No agents’ intermediaries or third parties are authorized to represent benefit f

📌 Mandarin Chinese Linguist Expert | Sigma Ai (Madrid)
🏢 Sigma
📍 Madrid