Coupang
Staff Back-end Engineer [L6-1] (GenAI Creative)
Shanghai, China. Posted 15 days ago
The role
This person will lead the architecture design and core development of Multi-Agent systems based on LLM/multimodal models. They will work on GenAI video creative systems and AI-native software development lifecycles.
What you will do
- Lead Multi-Agent system architecture design and core development
- Handle long-cycle managed Agent, sandbox execution environment, and persistent storage
- Manage layered context and Function Calling orchestration
- Deliver end-to-end complex Agent/RAG systems from design to online deployment
- Convert research papers into engineering implementations
- Design high-concurrency and high-availability backend architectures
Required qualifications
- Solid technical theoretical foundation
- Solid backend distributed service development theory and practice experience
- Proficient in Java/Python
- Experience in large-scale distributed system design and deployment
- Understanding of asynchronous, concurrency, idempotency, and rate limiting
- Familiar with large model principles and latest technologies including model network structure, attention mechanisms, and MoE modules
- Familiar with large model serving principles and technology
- Lead Multi-Agent system architecture design and core development
- Possess end-to-end delivery experience for complex Agent/RAG systems
- Familiar with Memory, Long Context, Planning, and Tool Use
- Familiar with one or more AI development frameworks including LangChain/LangGraph/Deerflow/Claude Code/Hermes
- Good engineering architecture skills with deep understanding of design patterns
Nice to have
- Computer, Mathematics, Physics, or Electronic majors preferred
- Experience in implementing latest self-harness directions preferred
- Ability to read open source framework source code
About the company
Coupang is one of the world's largest and fastest-growing e-commerce platforms. The NCA & TW Ads team is responsible for the development of new user acquisition ads, TW site ads, and other new advertising products.