Pengfei D.

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.