AI Model Reinforcement Korean Speaking Graduate (Safety Model Operations) - 2027 Start

Written by the T&S Network from TikTok's posting.

Builds and maintains the machine learning models and operational processes behind TikTok's automated Trust & Safety systems, which find harmful content and reduce risk across regions. This graduate role sits in Safety Model Operations and focuses on the training and evaluation data that shapes how those models perform, with Korean-market work.

What you'd do

• Help shape and revise the quality bars, decision rules, and sign-off standards used to judge training and eval data.
• Review data outputs against those standards, flag issues, and close the loop on corrections.
• Dig into hard, unclear, and borderline cases, then convert what you learn into rules the team can reuse.
• Track quality metrics, find root causes, and push fixes into production processes.
• Coordinate with production, product, algorithm, and strategy teams on the standards-to-feedback loop.
• Liaise daily with the local team in the Korean market and communicate business information accurately.

What it asks for

• Bachelor's degree required; law, philosophy, economics, journalism, language, or social science majors are favored.
• Strong English across listening, speaking, reading, and writing, able to follow English video and text; IELTS 7.5, TOEFL 105, or equivalent.
• Korean proficiency required for daily liaison with the Korean market team.
• Prior work in data quality, moderation, compliance, content ops, AI data, or annotation, through internship or project (preferred).
• Familiarity with Excel and common data-processing tools.
• Hands-on use of consumer LLM tools such as ChatGPT, Claude, or Gemini, plus a grasp of what AI can't do well (preferred).

Our best summary of the posting, and it can be wrong. The employer's posting is what counts: read it in full on TikToknorth_east before you apply. If we got something wrong, report this listing.