I will build custom agentic ai rag and llm saas apps with langgraph and langchain
AI, Machine Learning, Data Analytics, Power BI and Automation Expert
Highly Responsive
Known for exceptionally quick replies
About this Gig
Production-ready AI products, not just an API connection?
I build custom agentic AI, RAG systems, and LLM SaaS apps using LangGraph and LangChain.
What I Deliver:
- Custom agentic AI workflows with memory, reasoning, tools, and multi-agent orchestration
- RAG systems for PDFs, websites, databases, CRMs, and knowledge bases
- LLM SaaS apps with auth, dashboards, APIs, subscriptions, and deployment
- LangGraph flows for approvals, retries, branching, and long-running tasks
- LangChain pipelines for retrieval, embeddings, prompts, tools, and model integrations
- Custom agentic AI connected to APIs, MCP servers, databases, and business tools
- RAG systems using Pinecone, pgvector, Chroma, FAISS, reranking, and citations
- LLM SaaS apps with FastAPI, vector databases, monitoring, and cloud hosting
- LangGraph and LangChain architecture built for reliability and scale
Why Choose Me?
- Clean, documented, production-ready code
- Secure and scalable system design
- Clear communication and milestone delivery
- Support for custom agentic AI, RAG systems, and LLM SaaS apps
Need custom agentic AI, RAG systems, LLM SaaS apps, LangGraph, or LangChain development?
Message me before ordering!
My Portfolio
Other Data Science & ML Services I Offer
FAQ
What can you build with custom agentic AI?
I build custom agentic AI for research, support, sales, automation, and internal workflows. Using LangGraph and LangChain, I create AI agents with memory, tool calling, API access, approvals, and reliable multi-step execution.
What are RAG systems and why do I need one?
RAG systems let LLMs answer from your PDFs, websites, databases, or knowledge base. I build RAG systems with LangChain, vector databases, citations, reranking, and guardrails for accurate, context-aware responses.
Can you build complete LLM SaaS apps?
Yes. I build LLM SaaS apps with authentication, dashboards, subscriptions, APIs, databases, RAG systems, and cloud deployment. Your LLM SaaS app can include custom agentic AI powered by LangGraph and LangChain.
Do you use LangGraph and LangChain together?
Yes. I use LangGraph for stateful agent workflows, branching, retries, memory, and human approval. I use LangChain for prompts, tools, retrieval, embeddings, and model integrations. Together they power custom agentic AI and RAG systems.
Can you connect AI agents to my APIs and tools?
Yes. I connect custom agentic AI to CRMs, databases, Slack, Google services, payment APIs, internal tools, and MCP servers. LangGraph and LangChain handle tool calling, workflow logic, data retrieval, and secure integrations.
Which vector databases do you support?
build RAG systems with Pinecone, pgvector, Chroma, FAISS, Weaviate, Qdrant, and other vector databases. I also improve chunking, embeddings, metadata filters, hybrid search, reranking, and citations using LangChain.
Can you improve my existing RAG or AI app?
Yes. I audit and improve existing RAG systems, LLM SaaS apps, LangGraph workflows, and LangChain pipelines. I fix poor retrieval, hallucinations, slow responses, broken tools, weak prompts, memory issues, and deployment problems.
Do you deploy the final AI application?
Yes. I deploy custom agentic AI, RAG systems, and LLM SaaS apps on AWS, GCP, Azure, Vercel, Render, Railway, or your server. Deployment can include FastAPI, Docker, databases, monitoring, setup, and documentation.
What do you need before starting the project?
Please share your use case, users, data sources, APIs, preferred LLM, required features, and deployment platform. For custom agentic AI, RAG systems, LangGraph, LangChain, or LLM SaaS apps, message me before ordering.
Are API, hosting, and database costs included?
No. LLM API usage, hosting, domains, vector databases, and third-party services are paid by the client. I recommend cost-effective tools for your custom agentic AI, RAG systems, LangGraph, LangChain, and LLM SaaS apps.
2 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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J jonethan09

United States
Built a custom machine learning model with great accuracy and precision and delivered exactly what was promised. Will definitely hire again
Up to $50
Price
1 day
Duration
Helpful?H hayafa11

Saudi Arabia
Excellent work , very understanding ! And good communication
$50-$100
Price
1 day
Duration
Helpful?
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
J jonethan09

United States
Built a custom machine learning model with great accuracy and precision and delivered exactly what was promised. Will definitely hire again
Up to $50
Price
1 day
Duration
Helpful?H hayafa11

Saudi Arabia
Excellent work , very understanding ! And good communication
$50-$100
Price
1 day
Duration
Helpful?

