Senior Software Engineer – Global E-Commerce Search Infrastructure (TikTok Shop)
Core
Design and ship AI search agents, LLM query understanding pipelines, and personalized memory infrastructure for TikTok Shop's global commerce platform.
Role type
Senior IC software engineer (AI search & agent systems)
Builds
ReAct-based agents, RAG pipelines, personalized memory systems, and model-serving infrastructure for e-commerce search
Domain
E-commerce, AI/ML, Distributed Systems
Deliverable
production ML models
Required skills
C++/Go/Java, distributed systems, LLM/agent technologies, system design, low-latency optimization
Preferred skills
e-commerce search at scale, agentic systems, LLM inference optimization, post-training workflows, research publications
Technologies
vLLM, TensorRT-LLM, SGLang, MCP, DAG orchestration
Responsibilities
Design and ship ReAct-based agents with planning and tool use; optimize LLM query understanding and answer generation pipelines; build high-throughput personalized memory infrastructure; contribute to training and inference infrastructure; bridge research and engineering for production deployment
Seniority
Senior, hands-on IC
