Research Scientist Graduate (Conversational AI)- 2027 Start (PhD)
Core
Building the runtime, memory, post-training, and evaluation systems for a self-evolving conversational AI agent that powers TikTok's global e-commerce customer service.
Role type
Research Scientist Graduate (PhD)
Builds
Agent runtime, context/memory management systems, post-training pipelines, and evaluation frameworks for a self-improving AI loop.
Domain
E-commerce, Conversational AI, Large Language Models (LLMs), Agent Systems
Deliverable
production ML models
Required skills
Python, C++/Go/Rust/Java, Machine Learning, Deep Learning, NLP, Statistical Literacy, LLMs, Agent Systems
Preferred skills
Agent runtime/harness development, Post-training (SFT/DPO/RLHF), Evaluation & Experimentation, Self-improving systems, Inference & Serving
Technologies
vLLM, TensorRT-LLM, MoE, MCP, RAG
Responsibilities
Orchestrate agent skills and tools; manage context and memory for long multi-turn agents; implement post-training and data flywheel loops; build tool libraries and skill governance; design robust evaluation and experimentation systems; maintain safety and anti-gaming guardrails; ship end-to-end surfaces to production.
Seniority
Graduate (PhD), Hands-on IC
