Senior Research Scientist/Software Engineer, LLM/Agent Platform (TikTok-Content Ecology AI Innovation & Platform)

The Content Ecology Algorithm Team drives TikTok’s AI innovations in LLMs, NLP, Computer Vision (CV), multimodal learning, and recommendation algorithms. We develop cutting-edge AI capabilities that power multiple business lines.

We are seeking exceptional, experienced Research Scientists / Architects in the areas of LLM / Agent Platform. This is a unique role for innovators who are passionate about building the "bones" (scalable infrastructure) of next-generation AI and Agent. You will design and implement novel LLM/Agent frameworks with self-improving capabilities and architect the robust, high-performance infrastructure that brings these LLMs and agents to life at a global scale. This is an opportunity to shape the future of AI at one of the world's most dynamic technology companies.

What You’ll Do - Architect and build standardized, configurable, and reusable pipelines for the entire lifecycle of models and agents—from data processing and training to deployment, monitoring, and governance. - Partner with algorithm teams to understand their needs and provide a world-class infrastructure platform that accelerates their research and development cycles. - Build robust observability and evaluation frameworks to ensure the reproducibility, reliability, and cost-efficiency of AI workloads at scale. - Design and implement core platform infrastructure, including model/agent registries, feature stores, and high-throughput retrieval/RAG systems. - Design, build, and optimize advanced Agentic AI systems, focusing on core components like planning, tool use, and memory.