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English
$
USD
I will build ai agents and chatbots using langchain, dify, and rag
lambert
About this gig
Want an AI agent that actually understands YOUR business? Let's build it.
Senior Engineer with AI invention patents and production AI agent experience. I build intelligent chatbots and automation systems that go beyond simple Q&A.
WHAT I BUILD:
- Custom AI chatbots (customer support, knowledge base Q&A)
- RAG systems - chat with your documents (PDF, web, database)
- Multi-agent workflows for complex business processes
- AI-powered automation with n8n / Dify
- OpenAI / Claude / local LLM integration
- Vector database setup (Milvus, Pinecone, ChromaDB)
- API integration with your existing systems
TOOLS AND FRAMEWORKS:
LangChain, LlamaIndex, LangGraph, Dify, n8n, Flowise, OpenAI API, Claude API, Ollama, Milvus, Pinecone, ChromaDB, pgvector, Python, Java/Spring Boot, Docker
WHY ME:
- Invention patents in AI technology
- Production AI agents serving real users
- 9 years software engineering experience
- Full service: development, testing, deployment
- 7-day FREE support after delivery
HOW TO START:
1. Tell me what you want your AI to do
2. I propose the best architecture
3. You get a working AI agent + docs + deployment
Message me now - I reply within 0.5 hour!
Get to know lambert
lambert
Fullstack Java Developer and AI Agent Engineer and 9 Years Experience
- FromChina
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, Chinese, Japanese
Senior Software Engineer with 9 years in enterprise Java, cloud architecture, and AI.
WHAT I DO:
- Java, Spring Boot, Spring Cloud, REST APIs, microservices
- AI Agent Development with LangChain, Dify, n8n, RAG
- MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch
- DevOps with Docker, Kubernetes, Jenkins, Ansible
WHY ME:
- Led teams at SF Express and DiDi
- 15K QPS production systems
- AI Agents in production environments
- Invention patents in AI and Cloud Computing
Clean code, daily updates, on-time delivery, 7-day free support. Message me now!
FAQ
What AI models do you support?
I work with OpenAI GPT-4, Claude, Gemini, and open-source models like Llama and Qwen. I can recommend the best model for your budget and use case.
Can you build a RAG system with my own documents?
Yes. I can build a knowledge base Q&A system using your PDF, Word, or web content. The system uses vector databases like ChromaDB or Pinecone for accurate retrieval.
Do you deploy the AI agent for me?
Yes. The Premium package includes full deployment with Docker. I can deploy to your server, AWS, or any cloud platform.
Can the AI agent connect to my existing APIs or databases?
Absolutely. I specialize in building agents with custom tool calling that can interact with any REST API, database, or third-party service.
Which AI models do you support?
I work with OpenAI , Anthropic Claude, Google Gemin
Can the chatbot learn from my documents?
Yes! Using RAG (Retrieval-Augmented Generation), I can build a system that ingests your PDFs, websites, databases, or any documents and answers questions based on YOUR data accurately.
Will I need to pay for AI API costs?
Yes, the AI model API costs (e.g., OpenAI) are separate from my service fee. However, I can also set up local/open-source models if you want to avoid ongoing API costs.
Can you integrate the AI with my existing app?
Absolutely! I can provide the AI agent as a REST API that integrates with any existing system — web apps, mobile apps, Slack, Discord, WhatsApp, and more.
