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P

Phan B.

AI & Machine Learning Engineer · Senior

Vietnam · Rate on request · Active in the last 24h

Professional Overview

I am an AI Engineer with 3+ years of experience building production-oriented AI agents, multi-agent workflows, RAG systems, and conversational applications. I work mainly with Python, FastAPI, LangChain, LangGraph, vector databases, MCP, and LLM APIs. I built an open-source multi-agent orchestration platform with 192 registered MCP tools, multi-channel chat integrations, provider fallback, and 1,373 automated tests. I also designed hybrid RAG and GraphRAG pipelines with retrieval fusion and reranking, plus voice AI systems using STT, streaming TTS, and VAD. I help teams turn an AI idea into a reliable, testable product.

Services · fixed price

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Experience

Company
Freelance
Jun 2023 – Present
Role title
AI Engineer / Multi-Agent & RAG Developer

Employment Type

Full-time

Areas of Expertise

AI & Machine Learning Engineers

Design, train, and ship production ML models — from data pipelines to model inference at scale. Covers supervised learning, neural networks, LLM integration, and model optimisation.

NLP & Prompt Engineering

Build natural language processing systems, fine-tune large language models, and craft reliable production prompts for AI-powered products.

Automation & AI Workflows

Build intelligent automation pipelines, integrate AI APIs into existing tools, and replace manual workflows with agentic AI systems.

Open to

Freelance

Skills

Python LangChain RAG LangGraph ai agents

Experience Level

Senior

Current location

Vietnam

Time Zone

Ho Chi Minh UTC+7

Primary Work Language

English

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