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I will build ai chatbot and voice bot using langchain, rag, langgraph and openai gpt
Usama Yaseen
5.0
5.0
About this gig
You explain what you need in simple terms. Your developer talks in code, your business team talks in metrics, and your system talks in data. Somewhere between all that, meaning gets lost.
Thats where I step in turning your goals into working AI solutions that actually make sense.
I design and build chatbots, voice agents, and automation systems powered by LangChain, LangGraph, RAG pipelines, and LLMs. Every solution is tailored to your data and workflow not a copy-paste template.
From customer support bots that pull live answers from documents, to multi-agent systems handling CRM or scheduling, or voice AI assistants that talk like humans I deliver reliable, production-ready builds with clear logic and strong performance.
Tech stack includes FastAPI, LiveKit, Groq, and Python, with optional deployment on AWS, GCP, or Azure.
Lets discuss your problem, align on the goal, and build an intelligent system that saves time, reduces effort, and simply works powered by real engineering, not buzzwords.
Get to know Usama Yaseen
Usama Yaseen
Turning Ideas into Smart AI Chatbots, Voice Bots, and Automation
- FromPakistan
- Member sinceMar 2020
- Last delivery7 months
Languages
Urdu, English
I design intelligent systems that think, learn, and act not just respond.
With 2+ years of experience as a Data Scientist & AI Engineer, I specialize in crafting production-grade chatbots, voice agents, and automation workflows powered by LangChain, LangGraph, and RAG architectures.
Over 30 AI solutions delivered across finance, healthcare, and enterprise automation each built for clarity, speed, and scale.
Let’s turn your ideas into an AI that truly understands.
My Portfolio
FAQ
Can you assure the model accuracy to 99%?
Model accuracy depends heavily on your data's quality and quantity. I use advanced techniques to optimize performance, but a specific percentage can't be guaranteed. I'll work with you to define clear success metrics.
Does your gig price fixed for every type of solutions ?
No, the price is not fixed. It depends on the project's complexity, required features, data volume, and customization level. Please contact me with your project details to get a personalized quote.
Do you provide post-deployment support for AI applications?
Yes! I offer support for bug fixes, model updates, performance tuning, and guidance on integrating AI solutions into your workflow, ensuring your system remains reliable and scalable.
What kind of AI solutions can you build?
I build smart chatbots, generative AI content tools, and multi-agent automation systems. Solutions are tailored to your business needs, leveraging LLMs, RAG, LangChain, LangFlow, and LangGraph for intelligent, actionable results.
Do you offer AI consulting before starting a project?
Yes, I provide consultations to understand your requirements, recommend the best AI approach, and design a roadmap. This ensures your investment aligns with business goals and achieves measurable results.
Reviews
4 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
H hiramfeed
Repeat Client
United States
Another excellent experience with him, and everything went perfectly once again. Reliable, friendly, and delivers exactly what I need.
$100-$200
Price
4 days
Duration
Helpful?H 
harry_bouy
United Kingdom
Truly exceptional work! Usama delivered a fully functional AI-powered Slack bot that intelligently detects actionable messages and automates task creation in Jira/Trello. Integration with Google Sheets, Notion, and n8n workflows was flawless. His professionalism, clear communication, and detailed documentation...
Up to $50
Price
2 days
Duration
Helpful?J jace_henry
France
Truly impressive work! Usama delivered a powerful RAG chatbot with flawless logic and clean architecture. His communication and professionalism made the entire experience stress-free. Will definitely collaborate again on upcoming AI projects.
$50-$100
Price
1 day
Duration
Helpful?H hiramfeed
Repeat Client
United States
The RAG chatbot was delivered earlier than expected and exceeded all expectations. Smooth process, exceptional communication, and high-quality work. If you want results that speak for themselves, this is the person to work with!
$50-$100
Price
5 days
Duration
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
H hiramfeed
Repeat Client
United States
Another excellent experience with him, and everything went perfectly once again. Reliable, friendly, and delivers exactly what I need.
$100-$200
Price
4 days
Duration
Helpful?H harry_bouy
United Kingdom
Truly exceptional work! Usama delivered a fully functional AI-powered Slack bot that intelligently detects actionable messages and automates task creation in Jira/Trello. Integration with Google Sheets, Notion, and n8n workflows was flawless. His professionalism, clear communication, and detailed documentation...
Up to $50
Price
2 days
Duration
Helpful?J jace_henry
France
Truly impressive work! Usama delivered a powerful RAG chatbot with flawless logic and clean architecture. His communication and professionalism made the entire experience stress-free. Will definitely collaborate again on upcoming AI projects.
$50-$100
Price
1 day
Duration
Helpful?H hiramfeed
Repeat Client
United States
The RAG chatbot was delivered earlier than expected and exceeded all expectations. Smooth process, exceptional communication, and high-quality work. If you want results that speak for themselves, this is the person to work with!
$50-$100
Price
5 days
Duration
Helpful?
