Posted 22 days ago
Cantonese Chinese (Traditional script) Linguistic Projects (Remote) | Sigma AI
@ Sigma Group
Ottawa, Ontario
Overview
Sigma Group is hiring freelance remote linguists for its Sigma AI linguistic projects, working in Cantonese Chinese (Traditional script) and English. Tasks include annotation, transcription, evaluation, voice recording and validation, performed on an online platform available 24/7 under a commercial contract. Candidates must pass mandatory language tests.
Responsibilities:
- Categorize, annotate and correct linguistic data
- Transcribe and evaluate audio and text
- Record voice and perform conversational interactions
- Create and localize content
- Validate audio, video, images, sentences or words
Requirements summary:
- Fluent Cantonese Chinese (Traditional script), written and spoken
- Fluent English, written and spoken
- Computer literacy
- Preferred: computational linguistics, corpus analysis or LLM training experience
- Strong attention to detail
Tools & skills
Source and dates
Source type not verified · jsonld
- Employer posting date
- 2026-10-19
- First seen by our source
- 2026-10-19
- Source record updated
- 2026-11-09
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Entry level |
| Travel | air: none · ground: none |
| Work setting | Home |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | Cantonese, English |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Sigma Group
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
Better human data annotation. Smarter AI.
Full company description
With 30+ years of experience in data annotation, we support AI innovators to build smarter AI. Sigma AI has sourced, vetted and trained 25,000+ experts who speak 600+ languages and dialects. We offer human data annotation, training data sourcing, and proprietary technology to accelerate these projects. We guarantee quality results and specialize in generative AI, rapidly scaling projects, and exceptional standards for ethics and security.
- LinkedIn followers
- 116,628
- People associated on LinkedIn
- 1,042
- Reported office locations
- 175 SW 7th St, Miami, Florida 33130, US
- Avenida de Burgos, 114 (ED CETIL), 1ºPLANTA, Madrid, Community of Madrid 28050, ES
- 26-28 Hammersmith Grove, London, England W67BA, GB
- Other recorded names
- Sigma Group
- Sigma AI
- Specialties
- Machine Learning
- Training Data Preparation
- Test Data Labeling
- Data Annotation
- Data Labeling
- Training Data
- Artificial Intelligence
- Data collection
- synthetic data
- generative ai
- conversational ai
- ethical AI
- data sourcing
- and secure data facility
- Profile identifies a recruitment agency
- No
With 30+ years of experience in data annotation, we support AI innovators to build smarter AI. Sigma AI has sourced, vetted and trained 25,000+ experts who speak 600+ languages and dialects. We offer human data annotation, training data sourcing, and proprietary technology to accelerate these projects. We guarantee quality results and specialize in generative AI, rapidly scaling projects, and exceptional standards…
| Field | Value |
|---|---|
| Industry | IT Services and IT Consulting |
| Company size | 501-1,000 employees |
| Headquarters | Miami, Florida |
| Organization type | Privately Held |
| Year founded | 2008 |
| Specialties | Machine LearningTraining Data PreparationTest Data LabelingData AnnotationData LabelingTraining DataArtificial IntelligenceData collectionsynthetic datagenerative ai |
| Open jobs on Jobsy | 10 |
| View page |
🌟 Join Sigma.AI – Shaping the Future of Artificial Intelligence 🌍
🔹 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
We are looking for candidates with the following qualifications:
Fluent in Cantonese Chinese - Able to listen and write correctly without spelling mistakes
Fluent in English - Able to listen and write correctly without spelling mistakes
Computer literacy
Preferred (but not mandatory):
Experience with one or more of the following: computational linguistics, corpus analysis, language data annotation, or LLM training
Strong attention to detail
💻 Technical Requirements
To participate in our projects, you will need:
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
📋 How to Apply
If you’re interested, click on “APPLY FOR THIS JOB” and follow the instructions.
After submitting your application, you will receive an email with the required tests to assess your qualifications. These tests are mandatory to move forward in the process.
📩 Check your inbox and spam folder, just in case!
🚫 Important Notes
Sigma.AI does not hire through third parties. No agents’ intermediaries or third parties are authorized to represent benefit from or participate in any way in the relationship. To this effect the Candidate agrees to provide any documentation or information reasonably requested by the Company to verify their identity and credentials. Should the Candidate fail to provide enough evidence of their identity to Sigma´s satisfaction, Sigma shall be entitled to withhold or terminate any offer with the Candidate.
The company may employ or rely on artificial intelligence systems in its selection processes. Such processing is carried out in an ethical, transparent, and legally compliant manner. The purpose of the processing is to evaluate the tests submitted in the course of the selection process (for instance the transcribed content provided by the candidate). The legal basis for processing your data is the pre-contractual relationship between the parties and/or the provision of requested services.
💬 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.
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