Industry & Sector
We operate in the AI training-data and data services sector, delivering high-quality labeled datasets that power machine learning models in computer vision, NLP, and speech recognition. Our clients span fintech, healthtech, ecommerce, robotics, and autonomous systems worldwide. This is a remote, freelance role open to candidates based in Vietnam.
Primary Title: Data Annotation Specialist (Freelance)
Role & Responsibilities
- Perform accurate, consistent annotation of images, video, audio, and/or text according to project-specific labeling guidelines and quality standards.
- Use web-based annotation platforms to create bounding boxes, polygons, segmentation masks, and entity tags with high throughput and low error rates.
- Conduct self-review and participate in QA cycles, fixing flagged annotations and implementing reviewer feedback to meet SLA and accuracy KPIs.
- Document edge cases, report ambiguities, and collaborate with project managers to refine labeling instructions and ontologies.
- Maintain strict data confidentiality and handle sensitive data in compliance with client and platform requirements.
- Manage time and deliverables as a freelance contributorcomplete tasks on schedule and update progress in project trackers.
Skills & Qualifications
Must-Have
- Proven experience performing dataset annotation for computer vision or NLP projects.
- Familiarity with annotation platforms such as Labelbox or CVAT.
- Practical knowledge of bounding box and polygon annotation workflows.
- Experience with semantic segmentation and pixel-level labeling (for vision projects) or Named Entity Recognition (for text projects).
- Strong attention to detail and ability to meet accuracy KPIs consistently.
- Proficiency in written English sufficient to follow documentation and communicate issues.
Preferred
- Prior freelance or crowdsourced annotation experience on commercial ML projects.
- Familiarity with audio transcription or speech annotation workflows.
- Experience using productivity tools (Google Sheets, Slack, or similar) for status reporting.
Benefits & Culture Highlights
- Flexible, fully remote freelance engagement with project-based or hourly pay.
- Access to onboarding materials, annotation guides, and feedback loops to upskill and increase rates over time.
- Opportunity to work across diverse domains (vision, NLP, speech) and build a portfolio of ML training-data projects.
Location & Work Type: Remote (Vietnam) Freelance / Contract
This role is optimized for data-labeling specialists who value quality, consistency, and flexibility. If you have a steady internet connection, a detail-oriented approach, and experience with annotation platforms and workflows, you'll thrive in this fast-paced, impact-driven environment.
Skills: annotation,content writer,data,seo,research keywords
