You will get AI Agent Developer | ChatGPT Integration Expert | Custom Chatbot Solutions
Project details
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Looking to boost your business with AI? Need a custom chatbot, virtual assistant, or seamless AI integration to automate tasks, enhance engagement, and drive growth? As an expert in AI agent development, chatbot creation, and OpenAI integrations, I deliver smart, scalable, and user-friendly solutions.
My Expertise Includes:
✅ Custom Chatbot Development – AI chatbots for support, e-commerce, and SaaS to engage users and streamline operations.
✅ OpenAI Agent Development – Intelligent assistants for real-time, accurate responses and automation.
✅ AI Integration – Seamless AI embedding into websites, apps, CRMs, and workflows with cutting-edge tools.
✅ Natural Language Processing (NLP) – Advanced models for natural, context-aware interactions.
✅ AI-Powered Automations – Automate tasks and boost productivity for all business sizes.
✅ API & Platform Connectivity – Integrate AI with existing systems and tools for efficiency.
Looking to boost your business with AI? Need a custom chatbot, virtual assistant, or seamless AI integration to automate tasks, enhance engagement, and drive growth? As an expert in AI agent development, chatbot creation, and OpenAI integrations, I deliver smart, scalable, and user-friendly solutions.
My Expertise Includes:
✅ Custom Chatbot Development – AI chatbots for support, e-commerce, and SaaS to engage users and streamline operations.
✅ OpenAI Agent Development – Intelligent assistants for real-time, accurate responses and automation.
✅ AI Integration – Seamless AI embedding into websites, apps, CRMs, and workflows with cutting-edge tools.
✅ Natural Language Processing (NLP) – Advanced models for natural, context-aware interactions.
✅ AI-Powered Automations – Automate tasks and boost productivity for all business sizes.
✅ API & Platform Connectivity – Integrate AI with existing systems and tools for efficiency.
Programming Languages
JavaScript, Python, GoWhat's included
| Service Tiers |
Starter
$99
|
Standard
$250
|
Advanced
$750
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 10 days |
Number of Revisions | 1 | 3 | 5 |
Number of Pages | 1 | 3 | 5 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
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GT
Gregg T.
Jul 8, 2026
Foundation URL Project
Best developement team that I've ever worked within in 25 years of business. I highly recommend them and constantly use their services.
AM
AYAN M.
Jun 1, 2026
Build a RAG-Based AI Chatbot for Sales, Support & Lead Capture
Deepayan delivered the complete project based on our PRD with strong technical quality. He has solid expertise in AI engineering and AI agent development, and he understood the requirements clearly.
It took a couple of rounds to refine, but that process worked out well because he brought practical improvements that made the final product stronger and closer to the outcome we wanted. Communication was clear throughout, and the overall experience was very positive.
It took a couple of rounds to refine, but that process worked out well because he brought practical improvements that made the final product stronger and closer to the outcome we wanted. Communication was clear throughout, and the overall experience was very positive.
AM
AYAN M.
Dec 17, 2020
Experienced Shopify Developer
He did an awesome job. Top class Shopify developer. Will hire again.
KR
Kazi Rezwanoor R.
Apr 29, 2019
Web Scraping
Great job Deepayan. Quick and accurate. Highly recommended to all 👍
AM
Alexander M.
Feb 14, 2019
Web scraping using Python
Fantastic work!
Fast, accurate & great service-mentality
- very pleased, recommended!
Fast, accurate & great service-mentality
- very pleased, recommended!
About Deepayan
AI Agent & RAG Engineer | LangChain, FastAPI, Python & Golang
100%
Job Success
Khulna, Bangladesh - 5:54 pm local time
I build production-ready AI agents, knowledge-base chatbots, and LLM automation systems using Python, Golang, LangChain, FastAPI, and modern vector databases. I have 10+ years of software engineering experience, 100% Job Success on Upwork, and recent 5-star work delivering a RAG-based chatbot for sales, support, and lead capture.
I can help you build:
• AI agents and multi-agent workflows
• RAG chatbots over PDFs, websites, internal documents, and structured data
• Customer-support and lead-qualification assistants
• OpenAI, Claude, Gemini, and OpenRouter integrations
• Tool calling, memory, routing, guardrails, and structured outputs
• AI research, crawling, extraction, and enrichment pipelines
• Vector search with Pinecone, Weaviate, FAISS, and ChromaDB
• Production APIs with FastAPI, Python, Golang, REST, gRPC, and WebSockets
• Dockerized deployment, monitoring, evaluation, cost controls, and performance optimization
Recent systems I have developed include:
• A multi-tenant RAG customer-support platform with citations, streaming, analytics, an embeddable chat widget, and human-agent handoff
• An agentic grant-intelligence platform that discovers official sources, crawls websites and PDFs, evaluates eligibility, and produces structured listings
• A conversational grant-discovery assistant that extracts user interests and locations, searches structured data, answers through RAG, and maintains context
• Multi-stage LLM pipelines with validation, retry handling, audit trails, model routing, token controls, and per-run cost safeguards
Why work with me:
• Production-focused engineering—not disposable AI demos
• Clean, tested, maintainable, and documented code
• Clear communication and dependable progress updates
• Careful attention to security, reliability, scalability, latency, and cost
• End-to-end support from architecture and prototyping through deployment
Send me your goal, current stack, and biggest technical challenge. I’ll recommend the most practical path to a reliable working solution.
Steps for completing your project
After purchasing the project, send requirements so Deepayan can start the project.
Delivery time starts when Deepayan receives requirements from you.
Deepayan works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Consultation
Discuss your project goals, requirements, and preferences via Upwork Chat to create a tailored plan
Requirement Analysis
Review the provided details and materials to understand the scope, platform, and integration needs