Hello, my English name is Change Law(while Qunzhi Luo is the Pinyin of my Chinese name, which is on my national ID). I have more than 7 years of experience in system/hardware/database admin, about 3 years of programming(C++ and python).
2016.03 IBM Certified System Administrator AIX V1
2007.10 Oracle Certified PL/SQL Developer Associate
2007.05 Advanced Programmer Certification
2006.05 College English Test-6 with 552 degrees out of 750
Python
C++
Bash
Linux System Administration
Network Administration
Storage Area Network
Microsoft Windows
AutoHotKey
MikroTik RouterOS
Amazon Web Services
Yu Chiang H.
Taipei, China
$40/hr
5.0
1 jobs
I have extensive experience in various technical fields, including front-end development, back-end processing, and data analysis, across industries such as e-commerce, chatbot development, and blockchain technology.
React
NodeJS Framework
Python
SQL
NoSQL Database
Google Cloud Platform
Amazon Web Services
ETL Pipeline
Docker
Kubernetes
Web Scraping
Pengfei D.
Beijing, China
$30/hr
4.9
57 jobs
I am an AI Solutions Architect, RAG Specialist, AI Agent Developer, and Senior DevOps Engineer with over 15 years of cross-industry experience, including automotive, telecommunications, retail, digital agriculture, e-commerce, and enterprise IT consulting.
My expertise lies in integrating cutting-edge AI technologies with robust cloud infrastructure to build scalable, reliable, and business-driven intelligent systems.
⸻
🚀 AI / LLM / Agent Expertise
AI Agents & Automation Systems
Experienced in designing and building end-to-end intelligent agent workflows using:
• n8n, Agno, Composio
• LangChain, PydanticAI
• Multi-agent collaboration architectures
• Enterprise automation & workflow orchestration
Retrieval-Augmented Generation (RAG)
Deep expertise across the entire RAG stack:
• Enterprise knowledge bases
• Document ingestion (PDF, HTML, Confluence, SharePoint, email, etc.)
• Vector databases (Qdrant, Pinecone, Milvus, LanceDB)
• Multi-modal retrieval
• Latency/accuracy optimization for production RAG pipelines
Large Language Models (LLMs)
Hands-on experience with:
• Azure AI Foundry / Azure OpenAI
• Google Gemini
• Anthropic Claude
• DeepSeek
• Alibaba Qwen (DashScope)
Expert in prompt engineering, tool integrations, agent planning, and Model Control Protocol (MCP).
Model Deployment & Infrastructure
• On-prem / hybrid / cloud model hosting
• LLM traffic routing & gateway design
• Cost optimization strategies
• Enterprise security, audit, and compliance
⸻
🛠️ DevOps / Cloud / SRE Expertise
• Kubernetes: ACK, AKS, EKS, GKE, K3s
• Cloud: AWS, Azure, GCP, Alibaba Cloud
• IaC: Terraform, Terragrunt, Crossplane
• CI/CD: GitHub Actions, GitLab CI, Azure DevOps
• Observability: Prometheus, Grafana, Thanos, ELK, CloudWatch
• Secure infrastructure: IAM, VPC, RBAC, Secrets management
• High availability, auto-scaling, service mesh (Istio / Kuma)
⸻
💻 Software Development Skills
• Backend: Go, Python, Node.js, Java
• Frontend: React, Next.js, Vue
• API Design: REST, GraphQL, gRPC
• Automation: Shell, Python, TypeScript
• Databases: PostgreSQL, MySQL, Redis, MongoDB
Capable of delivering full life-cycle development from architecture to deployment.
⸻
🎓 Industry Certifications
• AWS Certified Solutions Architect – Professional
• Microsoft Certified (Azure Fundamentals & Professional)
• HashiCorp Certified: Terraform Associate
• Certified Kubernetes Administrator (CKA)
• SAFe® 5 DevOps Practitioner
⸻
🌍 Key Strengths
• Strong cross-cultural communication; extensive experience with global teams
• Deep understanding of China’s technology ecosystem, compliance, and cloud environment
• Ability to bridge business needs with technical execution
• Proven record of delivering complex projects with clarity and leadership
• Customer-centric mindset with a focus on long-term value
⸻
⚡ My Value Proposition
I help organizations:
• Build advanced AI Agent automation systems
• Deploy enterprise-grade RAG knowledge platforms
• Establish modern DevOps & cloud-native infrastructure
• Integrate AI into real-world workflows
• Improve engineering efficiency, reduce operational costs, and scale intelligently
I specialize in turning complex technical problems into simple, stable, and effective solutions.
⸻
🤝 Let’s Work Together
If you’re looking to enhance your business with AI, automation, or modern cloud engineering, I can help you design and deliver a solution tailored to your goals.
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