AI Data Specialist - Korean

About the role

You will own the meticulous evaluation and refinement of AI-generated Korean content, ensuring that the linguistic quality and contextual appropriateness meet rigorous standards. This position places you at the center of quality assurance, where your decisions directly influence the safety and performance of AI models in the Korean language. You are responsible for conducting pairwise comparisons and data counting tasks that provide critical insights into model behavior. A core part of your ownership involves comprehensive data collection, annotation, and object tagging across diverse media formats including audio, video, and static images. You will exercise judgment in assessing content suitability and accuracy, determining whether outputs align with intended guidelines. Your role requires a high level of native-level fluency to identify subtle nuances and idiomatic expressions that non-native review might miss. You will contribute to shaping the future of AI by providing high-quality, human-verified data that trains more reliable systems. This is a critical function where your expertise in data evaluation helps steer the development of responsible AI technology.

Key facts

What you'll do

Perform exhaustive data collection from varied digital sources to build robust Korean language datasets for AI training.

Conduct rigorous evaluation of AI-generated Korean text, assessing coherence, relevance, and factual accuracy against predefined criteria.

Execute detailed annotation processes, assigning precise labels to entities, sentiments, and intents within Korean language content.

Carry out pairwise comparisons between multiple AI outputs to determine which response is more accurate, fluent, and contextually appropriate.

Engage in systematic counting tasks to quantify occurrences of specific linguistic patterns, errors, or desirable responses in datasets.

Apply specialized object tagging techniques to audio, video, image, and text data to prepare materials for machine learning pipelines.

Monitor and document data quality issues, identifying anomalies, biases, or inconsistencies within the collected Korean language data.

Support data preprocessing activities, cleaning, and normalizing raw Korean text to ensure suitability for model ingestion.

Collaborate with internal teams to understand evolving project requirements and adjust evaluation criteria accordingly.

Provide qualitative feedback on the usability and safety of AI-generated content based on your expert assessment.

Maintain detailed records of all evaluation outcomes to support longitudinal analysis of AI performance improvements.

Utilize native-level linguistic intuition to validate the naturalness and cultural appropriateness of Korean language outputs.

Adhere to strict project guidelines and timelines to ensure the reliable delivery of high-assurance data products.

Act as a quality gatekeeper, preventing low-quality or unsafe content from influencing AI model development.

Requirements

You must be a native speaker of Korean with flawless comprehension and expression in both written and spoken forms.

You must possess fluent or advanced English proficiency, demonstrated at levels B2-C2 on standardized language assessments.

You must have a strong capability to understand and work with AI concepts, including how models generate and process language.

You must have experience or demonstrable skills in data collection methodologies for building language datasets.

You must be proficient in data preprocessing techniques, including cleaning, filtering, and structuring raw information.

You must have a background in data evaluation and quality assurance practices to assess content accuracy.

You must have hands-on experience with data annotation and labeling across multiple content modalities.

You must be comfortable working with diverse content types such as audio transcripts, video scripts, and image metadata.

Nice to have

Preferred experience in machine learning tasks that involve training or fine-tuning language models.

Familiarity with common AI evaluation frameworks and benchmarking tools.

Knowledge of linguistic analysis techniques specific to the Korean language.

Experience working with large-scale text or multimedia datasets.

Understanding of ethical considerations in AI data collection and model training.

Practical notes

This is a freelance position with a part-time commitment of 10+ hours per week.

The schedule is flexible, allowing you to work whenever you want within your availability.

The engagement is long-term, offering stable work over an extended duration.

The role is fully remote, designated as Work from home, eliminating the need for commuting.

Payments are issued on a timely basis, typically via standard freelance payment methods.

The hourly rate is set at 10 USD, subject to variation based on the contractor's country of residence.

This opportunity is ideally suited for students, recent graduates, stay-at-home parents, gig workers, and other professionals seeking supplemental income.

Applicants must reside in or be able to work from Seoul, as local regulatory and communication requirements apply.

Proficiency in Korean is non-negotiable; you must operate at a native level to perform assessment duties accurately.

English skills are mandatory for comprehending instructions and collaborating with global teams.

You will need access to stable internet connectivity and standard digital devices to perform remote assessments.

The start date is immediate, allowing you to begin contributing to AI quality initiatives without delay.

This role is classified under the specific listing identifier #LI-PR1505 for tracking purposes.