Mandarin Chinese Linguistic Projects - Sigma AI

Sigma; Malaysia; Remote; MYR 45,000 - 90,000; Full time

Job summary

Sigma is recruiting for a remote freelance data annotation role focused on linguistics projects. You will categorize, annotate, transcribe, and evaluate content across Mandarin and English datasets, participating in voice recording and content localization. All work is performed online via our platform.

This flexible contract offers the chance to work from anywhere, with tasks available on a 24/7 basis. Ideal candidates are detail-oriented, tech-savvy, and comfortable meeting quality standards

Qualifications

• Fluent in Mandarin Chinese, 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; experience in data annotation or content rating is a plus.

Responsibilities

• Categorization, annotation, correction, transcription, evaluation and validation of content.
• Conduct conversational interactions and voice recordings for annotation tasks.
• Create localization content and perform content validation across media.
• Operate remotely via our 24/7 online platform.

Skills

Mandarin

English

Attention to detail

Data annotation

Basic computer skills

Job description

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?

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

• Fluent in Mandarin Chinese – 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

Need Help?

We’re here for any questions or concerns.

Join us and be part of something global, innovative, and impactful. Sigma .AI – Data done right.