I will be generative ai ml llm engineer ai agent ai chatbot python full stack developer


1 order in queue
About this gig
I'm a USA-based Senior AI/ML and LLM Engineer with 9+ years building AI chatbots, intelligent RAG systems, and LLM SaaS platforms.
I build production-ready AI systems RAG pipelines, AI agents, and custom chatbots using Python, LangChain, and LlamaIndex.
I ground LLMs in your own data (PDFs, databases, APIs) so responses are accurate, not hallucinated, and I build multi-step agents that can search, calculate, and act on real tasks.
What you get:
- Custom RAG systems built on your documents or database, with vector search (Pinecone, Chroma, Weaviate)
- AI agents with tool-use browsing, calculations, API calls, multi-step reasoning
- Full-stack AI applications, from FastAPI backend to deployed frontend
- Prompt engineering and fine-tuning for better accuracy and lower token cost
- Secure API endpoints and cloud deployment (Docker, AWS, GCP)
Why work with me:
- Clean, production-grade Python and LLM code, not notebook prototypes
- Deep hands-on experience with LangChain and LlamaIndex
- Clear communication and on-time delivery, every time
Send me your use case and I'll tell you honestly whether RAG, a fine-tune, or a simple prompt fix is the right call before we start.
Get to know Jon Thak
Senior Full Stack Web Developer: React I Node I Wordpress I Shopify I AI ML LLM
- FromUnited States
- Member sinceNov 2024
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Japanese, Dutch, Norwegian, German, Chinese, Arabic, Danish, Italian, Spanish, French
Other Software Development Services I Offer
FAQ
Q: What do I need to get started?
A: You’ll need your OpenAI (or others) API key, and any documents or knowledge base if you want retrieval (PDFs, text, URLs, etc.). I’ll handle setup and integration.
Q: What technologies do you use for the full stack?
I specialize in the modern, scalable stack: Python with FastAPI for the backend, LangChain/LlamaIndex for LLM orchestration, and Next.js/React for the frontend (AI Website). Everything is containerized with Docker for easy deployment.
Q: What is the difference between a simple chatbot and an AI Agent?
A: A simple chatbot only answers based on pre-set knowledge. An AI Agent is much more powerful; it can reason, plan, and use tools (like fetching live data or performing calculations) to complete complex, multi-step tasks.
Q: Why do I need a RAG system if I'm using GPT-4?
A: Even the best LLMs have knowledge cut-offs and cannot access your private or proprietary data. A RAG system is essential because it grounds the LLM in your documents, guaranteeing accurate, company-specific answers and eliminating factual errors (hallucinations).
Q: What kind of data can your RAG system work with?
My RAG systems can index and retrieve information from almost any data source, including PDFs, CSVs, Excel, websites (sitemap/crawled data), Notion, databases
Q: Do you also design the UI/UX?
A: Absolutely — I can design a modern, minimal UI or integrate it into your existing website/app.
Q: Can the AI use my company data for answers?
A: Yes. That’s what RAG (Retrieval-Augmented Generation) does — it lets your AI reference your own documents securely.
Q: Can you deploy the system for me?
A: Yes! I’ll deploy your chatbot or full-stack app to Vercel, Render, or AWS and ensure it’s live and accessible.
Q: I'm not sure what I need. Can you help?
A: Absolutely. Message me with your business goal and the data you have. We can discuss your project in detail and define the most effective LLM SaaS platform architecture to meet your needs.
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S shaunalin

United States
Clear communication throughout, delivered exactly what we asked for. Our analyst team now gets structured outputs automatically instead of spending hours pulling data manually. Documentation was thorough enough for our team to maintain it in house. On time, no surprises. Will hire again. highly recommend.
Up to $50
Price
1 day
Duration
Helpful?
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S shaunalin

United States
Clear communication throughout, delivered exactly what we asked for. Our analyst team now gets structured outputs automatically instead of spending hours pulling data manually. Documentation was thorough enough for our team to maintain it in house. On time, no surprises. Will hire again. highly recommend.
Up to $50
Price
1 day
Duration
Helpful?
