15 hours ago
Shanghai, ChinaStaff+
Responsibilities
- Develop and operate backend distributed services for Coupang’s NCA and TW advertising products.
- Lead the architecture and core development of LLM- and multimodal-model-based multi-agent systems.
- Design long-running agent hosting, sandbox execution environments, layered context management, persistent storage, and function-calling orchestration.
- Deliver complex Agent/RAG systems end to end, from solution design through production deployment.
- Build and operate GenAI video-creative generation, AIOps fault diagnosis, ranking-algorithm improvement, and AI-native SDLC automation systems.
- Translate advances in memory, long context, planning, and tool use from research into production engineering solutions.
Requirements
- Strong theoretical and practical experience developing backend distributed services.
- Proficiency in Java or Python and experience designing and launching large-scale distributed systems.
- Understanding of asynchronous processing, concurrency, idempotency, rate limiting, code quality, and maintainable system design.
- Knowledge and practical experience with large language model architectures, attention mechanisms, MoE, and model serving.
- Experience leading architecture and core development for LLM or multimodal multi-agent systems.
- End-to-end production delivery experience with complex Agent/RAG systems.
- Familiarity with self-harness, memory, long context, planning, and tool-use technologies.
- Experience with at least one AI development or agent framework, such as LangChain, LangGraph, Deerflow, Claude Code, or Hermes.
- Strong software architecture and design-pattern fundamentals, high-concurrency and high-availability backend design capability, and some ability to read open-source framework source code.
- A background in computer science, mathematics, physics, electronics, or a related field is preferred; strong learning ability and independent problem-solving skills are also expected.
Categories
About Coupang
Coupang builds and operates a South Korea–focused e-commerce marketplace with an end-to-end logistics network (Rocket Delivery), plus food delivery, video streaming, and fintech under brands such as Coupang, Eats, and Play. Revenue comes from first-party retail, third-party marketplace services, advertising, and memberships (Rocket WOW). Founded in 2010, the company is headquartered in Seattle and is publicly listed on the NYSE (CPNG).