Freelance Annotation Quality Reviewer (Korean)

Toloka Annotators; Brasil; Remote; BRL 54,728 - 77,945; Part time

Benefits offered by this job

Competitive pay rates

Flexible part-time project

Experience on advanced AI projects

Job summary

A leading AI annotation firm is seeking a Freelance Annotation Quality Reviewer proficient in Korean for a part-time remote project. The role involves reviewing data quality, performing quality assurance checks, and providing constructive feedback. Candidates should have a degree and experience in annotation. Pay rates can reach $9/hour depending on skills and experience.

Qualifications

• Experience in mentoring/teaching/consulting, or editing/reviewing.
• Proven experience in annotation or data labeling.

Responsibilities

• Review and analyze data to ensure correct labeling.
• Perform quality assurance checks on other annotators' tasks.
• Label or classify content according to guidelines.
• Evaluate AI-generated content quality and correctness.
• Flag problematic material for compliance.
• Contribute to process improvements and mentor new team members.

Skills

Advanced proficiency in Korean

Written and spoken English (B2)

Attention to details

Excellent written communication

Ability to give constructive feedback

Interest in technology and AI

Education

Bachelor/Master/PhD Degree

Job description

Freelance Annotation Quality Reviewer (Korean)

1 day ago Be among the first 25 applicants

Please submit your resume in English and indicate your level of English.

What We Do

The Toloka Annotators platform connects individuals with Generative AI projects from leading tech innovators. Our mission is to unlock the full potential of AI by involving real people from around the world in the development process.

About The Role

Annotation is what helps AI make sense of the world — it's the bridge between raw data and intelligent understanding. As a Senior Data Annotator, you'll play a key role in shaping how AI systems interpret language, images, and information. You'll collaborate with cross-functional teams, provide feedback on data quality, and help maintain high annotation standards across diverse projects.

Responsibilities

• Review and analyze data — from text passages and product descriptions to social media posts, news articles, or visual content (such as marketing images and short videos) — ensuring it's correctly labeled and contextually accurate.
• Perform quality assurance (QA) checks on tasks completed by other annotators, identifying inconsistencies or labelling errors, and providing constructive feedback to help improve accuracy.
• Label or classify content according to detailed project guidelines — for example, tagging sentiment in user reviews, identifying medical terminology in clinical texts, or categorizing tone in marketing copy.
• Evaluate AI-generated content by rating response quality, factual correctness, and tone appropriateness — such as comparing different chatbot outputs or fact-checking generated summaries.
• Flag problematic or sensitive material, including biased language, misleading claims, or inappropriate visual content, to ensure compliance with ethical and safety standards.
• Contribute to process improvements, such as suggesting refinements to annotation guidelines, improving workflow efficiency, and mentoring new team members on best practices.

Important note: This is project-based work. Tasks are available only when projects are active. You may be invited to one or more projects depending on your profile and current opportunities.

Requirements

• You hold or are currently pursuing a Bachelor/Master/PhD Degree in any professional field.
• You have advanced proficiency in Korean (C1) and at least English (B2), both written and spoken.
• Experience in mentoring/teaching/consulting, or editing/reviewing/consulting work in a professional or academic setting.
• Excellent written communication and ability to give clear, structured and constructive feedback.
• Proven experience in annotation or data labeling.
• Attention to details and ability to understand and follow instructions.
• Genuine interest in technology and artificial intelligence.

Benefits

• Get paid for your expertise, with rates that can go up to $9/hour depending on your skills, experience, and project needs.
• Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments.
• Work on advanced AI projects and gain valuable experience that enhances your portfolio.
• Influence how future AI models understand and communicate in your field of expertise.

Seniority level

Mid‑Senior level

Employment type

Part‑time

Job function

Other

Industries

IT Services and IT Consulting