What is Sigma?
Sigma is a leading integral 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 global, innovative, and impactful. Sigma .AI – Data done right.

📌 British English Linguistic Projects (España)
🏢 Sigma
📍 España