What is Sigma? Sigma is a leading global 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 Value Are 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 you
What Will You Do? Categorization
Annotation
Correction
Transcription
Evaluation
Conversational interactions
Voice recording
Content creation
Localization
Validation of audio, video, images, sentences, or words
All tasks are remote, performed through an online platform available 24/7.
This opportunity is offered for freelancers under a commercial contract.




Requirements Fluent in British English – Able to listen and write correctly without spelling mistakes
Fluent in English – Able to listen and write correctly without spelling mistakes
Basic computer skills Preferred (but not mandatory):
Experience in data annotation or content rating
Strong attention to detail
Technical Requirements Computer:
Minimum 4GB RAM
Microphone and webcam
Operating system:
Windows 10 or higher
macOS 13 Ventura or higher
All OS updates installed and supported by the vendor
Connectivity & Accessories:
Stable internet connection
Headphones
Secure internet location, protected by a strong password
For audio-collection projects only:
Mobile phone with Android OS
Tablets and iOS devices are not supported.
Join us and be part of something general, innovative, and impactful. Sigma .AI – Data done right.
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📌 British English Linguistic Projects (Málaga)
🏢 Sigma
📍 Málaga