
501 - 1000 employees
Founded 2008
š¼ Consulting
š„ Healthcare
š¦ 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: š Date Added.
š September 29
Freelance Venezuelan Spanish annotator supporting Sigma AIās global AI data-annotation projects. Completing transcription, evaluation, localization, and validation tasks remotely.
š Peru, Colombia ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Spanish
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š 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.
š United States, United Kingdom, +1 more countries ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
š Translator / Interpreter
š» Ghost score 10%
š September 24
Freelance German-English linguist performing annotation, transcription, translation, and validation for Sigma.AIās ethical AI projects. Remote work through a 24/7 online platform.
šŗšø United States ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠German
š» Ghost score 10%
š£ļøš©šŖ German Required
š September 24
Dutch linguistic freelancer annotating, translating, and validating multimodal data for Sigma.AIās ethical AI projects. Completing remote tasks through an always-available online platform.
š Netherlands, United Kingdom, +4 more countries ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
š¤ Artificial Intelligence
š» Ghost score 10%
š£ļøš³š± Dutch Required
š September 24
Mandarin Chinese linguistic freelancer performing annotation, translation, transcription, and validation for Sigma.AIās artificial intelligence data projects. Remote commercial contract across multiple eligible countries.
š United States, United Kingdom, +3 more countries ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
š¤ Artificial Intelligence
š» Ghost score 10%
š£ļøšØš³ Chinese Required
š September 24
Freelance Portuguese linguistic annotator performing annotation, transcription, validation, and voice tasks. Supporting Sigma.AIās global artificial-intelligence data-collection and annotation projects remotely.
š§š· Brazil ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
š¤ Artificial Intelligence
š» Ghost score 10%
š£ļøš§š·šµš¹ Portuguese Required
š September 24
Marathi linguistic freelancer supporting Sigma.AIās AI data collection and annotation projects. Performing transcription, evaluation, localization, validation, and voice-recording tasks remotely.
š®š³ India ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
š¤ Artificial Intelligence
š» Ghost score 10%
š September 24
Telugu linguistic freelancer annotating, translating, and validating AI training data for Sigma.AI. Completing remote language, audio, video, image, and text projects.
š®š³ India ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Linguist
š» Ghost score 10%
š September 24
Freelance Mexican Spanish annotator and translator supporting Sigma.AIās artificial intelligence data collection and annotation projects remotely. Performing transcription, evaluation, localization, validation, and voice-recording tasks.
š²š½ Mexico ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Spanish
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š September 24
Freelance linguistic annotator validating Costa Rican Spanish audio, video, images, and text. Supporting Sigma.AIās global AI data collection and annotation projects remotely.
šØš· Costa Rica ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Linguist
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š September 24
Freelance Chilean Spanish annotator and translator supporting Sigma.AIās global AI data projects. Completing remote categorization, transcription, validation, and content tasks.
šØš± Chile ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Spanish
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š September 24
Freelance Colombian Spanish annotator and translator supporting Sigma.AIās global AI data projects. Performing annotation, transcription, evaluation, localization, and validation tasks remotely.
šØš“ Colombia ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Spanish
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š September 24
Freelance Peruvian Spanish annotator and translator supporting Sigma AIās artificial intelligence data projects. Performing annotation, transcription, evaluation, localization, and multimedia validation remotely.
šµšŖ Peru ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Spanish
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š September 24
Freelance Argentinian Spanish annotator and translator supporting Sigma AI data collection and annotation projects. Completing transcription, validation, evaluation, and localization tasks remotely.
š¦š· Argentina ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Linguist
š» Ghost score 10%
š£ļøšŖšø Spanish Required
š September 7
Freelance linguist annotating, translating, and validating Hindi, Tamil, and English data. Supporting Sigma AIās global artificial-intelligence data collection and annotation projects remotely.
š India, United Kingdom ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
š¤ Artificial Intelligence
š» Ghost score 26%
š£ļøš®š³ Hindi Required
š August 25
Romanian linguist annotating, transcribing, evaluating, and localizing AI training data for Sigma.AI. Remote freelance work through a 24/7 online platform.
š·š“ Romania ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Linguist
š» Ghost score 22%
š£ļøš·š“ Romanian Required
š August 25
Freelance German audio contributor recording 500 natural utterances for Sigma.AIās voice technology projects. Completing two remote recording sessions using Android or Windows equipment.
šŗšø United States ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠German
š» Ghost score 22%
š£ļøš©šŖ German Required
š August 25
Freelance Japanese audio annotator collecting 500 natural speech utterances for Sigma.AIās AI technology. Completing remote recording sessions through a 24/7 online platform.
š Japan, Spain, +1 more countries ā Remote
ā³ Contract/Temporary
š” Mid-level
š Senior
⨠Japanese
š» Ghost score 22%
š£ļøšÆšµ Japanese Required
š June 30
Linguistic projects in Germany for fluent German and English speakers. Engaging in tasks like annotation, transcription, and content validation remotely.
š£ļøš©šŖ German Required
š May 4
Join Sigma.AI for Annotation & Translation work focused on Russian language tasks. Fully remote position for qualified candidates with a degree in Translation and Interpreting.
šµš± Poland ā Remote
ā° Full Time
š” Mid-level
š Senior
š Translator / Interpreter
š» Ghost score 45%
š£ļøš·šŗ Russian Required
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