Development and operation of agent systems using LLM models Experience in developing and operating RAG (Retrieval-Augmented Generation) based models Generative AI chatbot service development experience Proficiency in Node.js/Docker, open-source analysis & debugging, Linux, and databases (backend) Experience: New graduate or up to 2 years' professional experience Education: Bachelor's degree or higher Experience with Generative AI, RAG, and AI service platforms Programming languages: JavaScript, TypeScript, Node.js, Python Preferred domain expertise: Open API, diverse open-source libraries/frameworks, database management and optimization, Docker Web platform development experience (Node.js) Experience with RDBMS such as MySQL Git version control experience English: Business-level communication skills