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

Responsibilities

About the Team

Generative AI and large language models are reshaping the core capabilities of global content platforms — and high-quality training and evaluation data is one of the key factors that determines a model's ceiling.

The Safety Model Operations [SMO] team is responsible for building, optimizing, and maintaining machine learning models and operational processes that support TikTok's Trust & Safety systems. We ensure that automated safety models perform effectively in identifying harmful content, mitigating risks, and maintaining a safe user environment across regions.

We are looking for talented individuals to join our team. As a graduate, you will get opportunities to pursue bold ideas, tackle complex challenges, and unlock limitless growth.

Successful candidates must be able to commit to an onboarding date by the end of the year. Please state your availability and graduation date clearly in your resume.

Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to our Company and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

Responsibilities

• For large-model training and evaluation scenarios, participate in formulating and continuously iterating data quality standards, judgment rules, and acceptance criteria.
• Review and assess data outputs against quality standards, identify issues, and close the loop on corrections to ensure accuracy and consistency.
• Participate deeply in the assessment and discussion of complex, ambiguous, and edge cases, turning findings into reusable judgment rules and knowledge assets.
• Track quality performance, identify root causes, and drive improvements in production processes and execution.
• Collaborate with production, product, algorithm, strategy, and other teams to align quality standards and connect the “standards—production—acceptance—feedback” loop.
  
  

Qualifications

Minimum Qualification

• Bachelor's degree; majors in law, philosophy, economics, journalism, languages, social sciences, or related fields are preferred.
• Internship or project experience in data quality, content moderation, compliance, content operations, AI data, or annotation is preferred.
• Excellent English listening, speaking, reading, and writing skills, including accurate comprehension of English video and text. IELTS 7.5, TOEFL 105, or equivalent.
• Familiarity with Excel and other common data-processing tools. Deep experience with mainstream foundation-model products such as ChatGPT, Claude, Gemini and a basic understanding of AI capability boundaries, are preferred.
• Clear logic and strong structured decomposition, abstraction, synthesis, judgment, and communication skills. Detail-oriented, with an independent view of what constitutes high-quality data.
• Korean proficiency is also required, as it is mandatory for daily liaison with the local team in the Korean market and the accurate communication of business information.
  
  

Job Information

About TikTok

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day.

We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.