Staff Back-end Engineer (NCA and TW Ads)
Core
Design and build AI agent platforms, GenAI video creative systems, ranking algorithms, and AI-native SDLC pipelines for Coupang's global advertising business.
Role type
Staff back-end engineer (AI agents & GenAI systems)
Builds
GenAI video creative systems, AIOps platforms, Ranking algo RSI systems, AI Native SDLC tools
Domain
E-commerce advertising, Generative AI, Large Language Models (LLM)
Deliverable
production ML models | product features
Required skills
Java/Python, distributed system design, LLM architecture, multi-agent system design, RAG implementation, AI framework integration (LangChain/LangGraph), high-concurrency backend architecture, system observability
Preferred skills
Self-harness implementation, long-context memory, tool use orchestration, paper-to-engineering translation
Technologies
Java, Python, LangChain, LangGraph, Deerflow, Claude Code, Hermes
Responsibilities
Architect and develop multi-agent systems with sandbox execution and function calling; build automated pipelines for video creative generation and ranking algorithm optimization; implement AI-native software development lifecycle tools; deliver end-to-end complex Agent/RAG systems to production
Seniority
Staff, hands-on IC with strategic scope
