AI Transformation (AI Engineer) (Shopee)

About the team

We are looking for a Junior AI Engineer to join our team. You will work on building and maintaining AI-powered internal tools that directly impact how our teams operate. This is a hands-on engineering role where you will ship production code from day one, contributing to systems that serve hundreds of internal users daily. If you are excited about applying LLMs, vector search, and modern web technologies to solve real business problems, this role is for you.

What you'll do

AI

• Develop and maintain Retrieval-Augmented Generation (RAG) pipelines for internal knowledge retrieval and Q&A systems
• Implement intent classification and message filtering (e.g., distinguishing questions from greetings/acknowledgments in Thai language contexts)
• Work with vector databases for document embedding, indexing, and similarity search
• Fine-tune confidence scoring, self-correction heuristics, and response quality evaluation
• Integrate with LLM APIs (OpenAI-compatible, Anthropic) and internal model endpoints

Requirements

Internal Tooling & Web Applications

• Build and maintain internal web applications using Next.js, TypeScript, and PostgreSQL
• Contribute to frontend performance optimization (React rendering, state management, caching strategies)
• Write and optimize SQL queries, database migrations, and RLS policies

Automation & Infrastructure

• Build and maintain workflow automation using n8n, including custom nodes and integrations