You will get an evaluation harness that measures and protects your LLM quality

Let a pro handle the details

Buy Machine Learning services from Zhibin, priced and ready to go.

Let a pro handle the details

Buy Machine Learning services from Zhibin, priced and ready to go.

Project details

Most teams ship LLM changes on vibes — a prompt 'feels better,' the headline number ticks up, and a rare but high-stakes slice quietly regresses. You hear about it from a customer.

I build evaluation harnesses that turn 'feels better' into evidence: a labeled test set from your task, scored with the right metrics, broken down by slice/intent — because an aggregate hides the failure that hurts. Then I wire it into a CI gate so every change is checked.

WHAT YOU GET
• A labeled eval set built from your task and data
• Right metrics: accuracy, recall/precision, MRR, faithfulness, or LLM-as-judge
• A stratified report — strong slices vs. failing ones, with examples
• A CI regression gate that blocks quality drops before they ship (Standard+)
• Reproducible scripts + a short Loom walkthrough

WHY ME
• 6 years building & evaluating conversational AI at a top insurer (BERT → LLM); 3 years in data mining.
• Open-source eval demos on my GitHub: stratified routing/tool accuracy + RAG recall/precision/MRR.
• 100% async — written updates, GitHub PRs, recorded walkthroughs. No meetings.

Tell me what 'good' means for your system and I'll tell you how to measure it.
Machine Learning Tools
BERT, ChatGPT, GPT-3, MLflow, NLTK, NumPy, pandas, Python, scikit-learn
What's included
Service Tiers Starter
$200
Standard
$600
Advanced
$1,300
Delivery Time 5 days 10 days 18 days
Number of Revisions
123
Model Validation/Testing
Model Documentation
Data Source Connectivity
-
Source Code

Frequently asked questions

Zhibin C.Status: Offline

About Zhibin

Zhibin C.Status: Offline
Enterprise AI Agent & Conversational AI Engineer | LLM, RAG, NLP
Macau, Macao - 7:29 pm local time
Enterprise AI Agent & Conversational AI Engineer | 9+ years building production AI

I help companies turn LLMs into reliable, production-grade AI agents and conversational systems - not demos, but systems that handle real users at scale.

For 6 years at Ping An Life Insurance (one of the world's largest insurers), I built conversational AI from the BERT era through large-language-model fine-tuning: intent understanding, dialogue management, and customer-service automation serving millions of users. Before that, 3 years at Ctrip (China's largest online travel platform) doing large-scale data mining, recommendation, and risk/fraud modeling.

What I can build for you:
- AI Agents & multi-agent systems - tool use, function calling, orchestration (LangChain / LangGraph)
- RAG pipelines & knowledge bases - vector DB, retrieval, grounding, hallucination control
- LLM fine-tuning & evaluation - SFT, LoRA/PEFT, domain adaptation, prompt engineering
- Conversational AI, chatbots & customer-service automation
- NLP, anti-fraud, knowledge graphs, recommendation & CTR models

Tech I use daily: Python, PyTorch, Hugging Face, LangChain / LangGraph, OpenAI & Claude APIs, BERT, vector databases (pgvector / FAISS / Milvus / Pinecone), SQL.

How I work: I confirm scope and acceptance criteria up front in writing, send clear written progress updates, and deliver clean code with documentation.

If you're building an AI agent, a chatbot, or a RAG system - or need an ML expert for fraud / recommendation - message me your goal and I'll reply with a concrete approach.

Steps for completing your project

After purchasing the project, send requirements so Zhibin can start the project.

Delivery time starts when Zhibin receives requirements from you.

Zhibin works on your project following the steps below.

Revisions may occur after the delivery date.

Agree on metrics & acceptance criteria

We define what 'good' means, the metrics, and the slices that matter most - in writing - before any scoring begins. No surprises later.

Review the work, release payment, and leave feedback to Zhibin.