The Infrastructure System Lab is a hybrid research and engineering group focused on building next-generation AI-native data infrastructure. ByteBrain is a platform that provides AI services for infrastructure at Bytedance. The goal is to leverage AI to automatically optimize system performance and reduce labor and resource costs. Responsibilities include researching in the direction of AIOps, AI4DB/Storage/Networking, AI4OR, LLM, NLP&Knowledge Base. Also, designing and implementing ByteBrain architecture and modules, exploring and implementing state-of-the-art methods in AI for systems, collaborating with teams, and writing papers and patents.