You will get an AI SaaS, AI agent, or intelligent web application
Project details
Build a powerful AI-powered SaaS, web application, chatbot, or automation system tailored to your business.
I’ll develop a production-ready AI solution using technologies such as React, Next.js, Node.js, Python, OpenAI, Claude, LangChain, RAG, and AI Agents.
Whether you need an AI SaaS MVP, intelligent chatbot, RAG system, multi-agent workflow, AI automation, or custom AI integration, I can handle the complete development process, from architecture and AI strategy to development, testing, and deployment.
Your solution can include AI model integration, custom workflows, database integration, authentication, dashboards, APIs, third-party integrations, and scalable SaaS architecture.
I focus on building systems that are reliable, maintainable, scalable, and ready for real users—not just prototypes.
Share your idea and requirements, and I’ll turn them into a functional AI-powered product.
I’ll develop a production-ready AI solution using technologies such as React, Next.js, Node.js, Python, OpenAI, Claude, LangChain, RAG, and AI Agents.
Whether you need an AI SaaS MVP, intelligent chatbot, RAG system, multi-agent workflow, AI automation, or custom AI integration, I can handle the complete development process, from architecture and AI strategy to development, testing, and deployment.
Your solution can include AI model integration, custom workflows, database integration, authentication, dashboards, APIs, third-party integrations, and scalable SaaS architecture.
I focus on building systems that are reliable, maintainable, scalable, and ready for real users—not just prototypes.
Share your idea and requirements, and I’ll turn them into a functional AI-powered product.
AI Algorithms
Large Language Model, Transformer ModelAI Applications
AI Chatbot, AI Content Creation, Conversational AIAI Development Language
PythonAI Tools
PyTorch, TensorFlowAI Models
ChatGPT, GPT-3, GPT-4What's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 15 days |
Number of Revisions | 1 | 2 | 3 |
AI Model Integration | |||
Batch Normalization | - | - | - |
Database Integration | - | ||
Detailed Code Comments | - | ||
Image Upscaling | - | - | - |
MLOps | - | - | |
Model Deployment | - | ||
Model Documentation | - | ||
Model Monitoring | - | - | |
Model Testing & Optimization | - | ||
Model Tuning | - | - | |
Natural Language Processing | |||
NLP Tokenization | - | - | - |
Pre-Training | - | - | - |
Prompt Engineering | |||
Setup File | |||
Source Code |
Frequently asked questions
7 reviews
(7)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
MK
Mr M B K.
Aug 22, 2026
Fix AI Agent Message Response Issue - Nodejs, Nextjs & OpenAI
Really impressed with the work. The issue was identified quickly, and the fix was handled with a thoughtful approach. Communication was easy throughout the project, and everything was completed on time with great attention to detail. The final result exceeded expectations, and I’d gladly work together again.
MK
Mr M B K.
Aug 18, 2026
AI SaaS project bug fixing
I had a great experience working with Mithun. He understood the project requirements quickly and handled the AI SaaS development and bug fixes with a strong understanding of both frontend and backend development. He was easy to communicate with, paid attention to the details, and made sure everything was working properly before wrapping things up. I really appreciated his approach to solving problems and keeping the project moving forward. I’d be happy to work with him again on future projects.
MK
Mr M B K.
Aug 12, 2026
Full Stack Mern Developer - React/Nextjs, Nodejs, ExpressJs, MongoDb/PostgreSQL
Great experience working with Mithun on our AI hiring SaaS platform. He handled full-stack development, automated interviews, AI-powered candidate screening and evaluation, dashboards, and workflow automation. His React/Next.js, Node.js, and AI integration skills were excellent. Reliable, responsive, and highly recommended for AI SaaS development.
JO
Joel O.
Jul 16, 2025
Full Stack Dev - React/NextJS
DL
Diane L.
Jul 12, 2025
Full Stack Event Management WebApp Development
Job has been done as required and on time. so thank you. we are cheking to see for the next one
About Mithun
AI Agent Developer | LLM, RAG, LangChain & Python
100%
Job Success
Dhaka, Bangladesh - 1:18 am local time
I help startups, SaaS companies, and growing businesses design and build intelligent AI systems from AI agents and RAG applications to AI chatbots, workflow automation, and full-stack AI products.
I create and implement AI agents, AI integration, chatbots, automation systems, AI SaaS solutions, custom web applications, AI-powered MVPs, AI healthcare solutions, AI writing tools, GPT clone, full stack application, multi-tenant and unique AI solutions in production.
Before writing a single line of code, I design a full-fledged AI strategy for your company, so you will have a clear understanding of what to build, how much it will cost, and what to exclude. Most mistakes related to AI budgets are related to development of the wrong things first.
Primary Expertise:
* AI Agent Development
* AI Automation
* LLM Application Development
* RAG Systems
* AI Chatbot Development
* Generative AI
* Multi-Agent Systems
* AI SaaS Development
* OpenAI API Integration
* LangChain Development
* Python AI Development
* Full-Stack AI Applications
Supporting Expertise:
* React.js
* Next.js
* TypeScript
* Node.js
* Express.js
* REST APIs
* WebSockets
* SaaS Architecture
* Multi-Tenant Applications
Technical Stack:
AI & LLM Development:
Python | AI Agents | LLMs | Generative AI | OpenAI API | LangChain | LlamaIndex | RAG | Multi-Agent Systems | Prompt Engineering | NLP | AI Chatbots
Backend Development:
Python | Node.js | Express.js | REST APIs | GraphQL | WebSockets | JWT Authentication | API Integration
Frontend Development:
React.js | Next.js | TypeScript | Tailwind CSS | Redux | Context API
SaaS & Application Development:
AI SaaS | Multi-Tenant SaaS | SaaS Architecture | RBAC | Subscription Systems | Billing Integration | Admin Dashboards
WHAT I'VE SHIPPED IN PRODUCTION:
1. AI Interview: AI Hiring Assistant SaaS Platform with Automated Interviews & Smart Candidate Screening
* AI-powered automated interviews 24/7
* Reduces hiring time by almost half
* SaaS dashboard
* Features: Interview recording, playback, bias-free screening, parallel processing
AI Hiring Platform | AI SaaS | Automated Interviews | Candidate Screening | AI Evaluation | Recruitment Automation
2. Multi-Agent Autonomous SEO Publishing Engine
* 6 Synchronized AI Agents working autonomously
* Automated daily SEO publishing
* Fact-checking AI built-in
* 23 schema types, 30+ language support
AI Agents | Multi-Agent Systems | AI Automation | Autonomous Agents | Generative AI
3. Chat SEO: SaaS SEO Chat Platform with Google Search Console Intelligence System
* AI-powered SEO chat interface
* Replaced 5 SEO subscriptions with one tool
* Full SaaS with billing, team management, affiliate tracking
* Live GSC integration, competitor analysis, crawl error detection
Generative AI | SEO Automation | AI Agents | Google Search Console | SaaS
4. Appointment AI Automation Platform with Social DM Lead Qualification
* AI lead qualification from Instagram DMs
* Converted DMs into sales calls
* Full SaaS platform (plans, billing, affiliate tracking)
* Multi-channel routing, ROI calculator
RAG | AI Chatbot | Knowledge Base | LangChain | LLM | OpenAI API
Send me your requirements, existing architecture, or product idea. I'll outline the recommended architecture, AI approach, and development roadmap before we start.
Steps for completing your project
After purchasing the project, send requirements so Mithun can start the project.
Delivery time starts when Mithun receives requirements from you.
Mithun works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Project Planning
I review your requirements, goals, existing systems, and AI use case to define the best technical approach and project scope.
UI & System Architecture
I design the application structure, database architecture, AI workflow, APIs, user roles, and integrations needed for your solution.