VN
VNG Corporation
Ho Chi Minh City · On-site
AI Engineer, Zalopay
PythonRails
Company Overview
Work Information
Work Hours
9:00 AM – 6:00 PM
Paid Leave
12+ days / year
Contract
Full-time (Permanent)
Insurance
Social & Health Insurance
Về vị trí này
We are hiring an AI Engineer to design and operate production-grade AI/ML systems that directly improve product and operational outcomes. Our current focus is building an AI Agent Platform with a modular architecture: Gateway à Orchestrator à Agents → Tools → Guardrails → Feedback, enabling automation of complex workflows with strong control, validation and continuous learning. This role is intentionally broader than AI agents. Depending on priorities, you may also work on: Search and retrieval systems (keyword, semantic, hybrid) Recommendation, ranking and personalization systems AI evaluation, monitoring and reliability systems Other AI-powered product or operational systems with measurable business impact We are not looking for someone who only knows how to prompt models. We are looking for a strong engineer who can turn ambiguous problems into reliable systems in production. What You Will Build AI Agent Platform components: orchestration, agent coordination, tool usage, guardrails and feedback loops Search and retrieval systems using keyword, semantic or hybrid approaches Recommendation, ranking and personalization systems Backend services and APIs that expose AI capabilities safely and reliably Monitoring, evaluation and human-in-the-loop workflows for continuous improvement Responsibilities Design and build end-to-end AI/ML systems from problem definition to production rollout and iteration Develop and evolve AI Agent workflows, including context handling, tool calling, validation and fallback logic Build retrieval, search, ranking and personalization components that connect user intent to the right data or action Integrate LLMs with structured and unstructured data via context construction and tool-enabled workflows Must-have 1 - 2+ years of experience in AI Engineering or ML Engineering Strong software engineering foundation with a production mindset, strong Python skills Experience building backend services and APIs Hands-on experience building LLM-based applications Understanding of: RAG, embeddings, vector databases Retrieval and search pipelines Experience in at least one of the following: AI agent or multi-step AI workflows Search, retrieval or relevance systems Recommendation, ranking or personalization systems Nice to Have Experience with large-scale search or recommendation systems Experience with agent orchestration frameworks or tool-using LLM systems Experience with A/B testing, experimentation or evaluation pipelines Experience with observability, monitoring and production reliability Experience with multimodal systems (voice, OCR, image) Experience in high-scale operational domains (fintech, payments, customer operations) Experience mentoring or leading projects How You Work You are an engineer first: you care about clean code, maintainability and production reliability You have an AI mindset: you understand when to use rules, ML, LLMs or hybrid approaches You have an applied mindset: you start from the problem and choose the simplest effective solution You are proactive: you propose, build, test and improve continuously