Fullstack Engineer - TikTok PGC AI Platform

TikTok dominates the global short video space. Join us to accelerate the adoption of AI across TikTok. Our team's mission is to democratize AI through a powerful platform that lowers the barrier to entry, empowers non-technical roles, and enables fast, reliable iteration. Our business covers a wide range of areas, including content governance, PGC, local services, livestreaming, music, etc.

We're looking for a highly skilled and innovative software engineer to join our cutting-edge AI Platform team. In this role, you'll work closely with product and algorithm teams across TikTok to build the infrastructure that powers agile model iteration and brings AI into every corner of the business.

As a member of TikTok PGG AI Platform team, you will:
- Responsible for developing our AI Platform by using cutting-edge AI technologies such as LLM, MLLM, RAG, and Agents.
- Work closely with product managers, algorithm teams, and other cross-functional stakeholders to tackle complex, high-impact problems.
- Design and evolve system architecture to ensure scalability, performance, and reliability. Build robust infrastructure to integrate LLM capabilities into real-world business applications.
- Learn how TikTok core products work, and discover the magic underlying systems that power the fastest-growing platform on the planet.

Minimum Qualifications:
- BA/BS Degree in Computer Science or related major.
- Proficiency in at least one of the following programming languages: Golang, Python, or JavaScript, along with familiarity with common development frameworks and tools.
- Curiosity towards new technology and outstanding ability to analyze and solve problems.
- Practical experience working with genAI/LLM systems, AI agents, and related data processing workflows

Preferred Qualifications:
- Active participation in open-source projects and strong familiarity with the AI/ML community.
- Solid understanding of machine learning fundamentals, deep learning frameworks (e.g., PyTorch, TensorFlow), and widely used AI development tools.
- Deep passion for AI — you think about it, read about it, and build with it every day.