Join Sigma.AI – Shaping the Future of Artificial Intelligence
What 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 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? As part of our linguistic projects, your responsibilities may include:
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




We are looking for candidates with the following qualifications:
Fluent in Korean & Chinese – Able to listen and write correctly without spelling mistakes
Fluent in Korean & Chinese – Able to listen and write correctly without spelling mistakes
Fluent in 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
Basic computer skills
Preferred (but not mandatory):
Experience in data annotation or content rating
Experience in data annotation or content rating
Strong attention to detail
Strong attention to detail
Technical Requirements
To participate in our projects, you will need:
Computer:
Minimum 4GB RAM
Minimum 4GB RAM
Microphone and webcam
Microphone and webcam
Operating system: Windows 10 or higher macOS 13 Ventura or higher
Operating system:
Windows 10 or higher
Windows 10 or higher
macOS 13 Ventu

📌 Korean & Chinese linguistic projects (Remote) (España)
🏢 Sigma Ai
📍 España