You will get a custom AI tool for your business (chat, automation, summaries)
Project details
I build custom AI chatbots that companies can embed directly into their websites.
Your chatbot can answer questions using your content only — PDFs, documents, website pages — and can be integrated as a floating widget or a full-screen chat.
With 7+ years of experience in full-stack development (TypeScript, React, Next.js, Node.js) and modern LLM frameworks (OpenAI, LangChain), I deliver fast, reliable, production-ready AI agents that improve customer support, reduce workload, and increase conversions.
You will receive:
• A custom-trained AI chatbot using your data
• A beautiful web UI (floating button widget)
• Complete integration instructions or I can integrate it for you
• Clean, maintainable code
• Fast delivery & excellent communication
I focus on simple, practical AI tools that bring immediate business value, not over-engineered systems.
Your chatbot will be accurate, stable, and easy for you to maintain or extend in the future.
Your chatbot can answer questions using your content only — PDFs, documents, website pages — and can be integrated as a floating widget or a full-screen chat.
With 7+ years of experience in full-stack development (TypeScript, React, Next.js, Node.js) and modern LLM frameworks (OpenAI, LangChain), I deliver fast, reliable, production-ready AI agents that improve customer support, reduce workload, and increase conversions.
You will receive:
• A custom-trained AI chatbot using your data
• A beautiful web UI (floating button widget)
• Complete integration instructions or I can integrate it for you
• Clean, maintainable code
• Fast delivery & excellent communication
I focus on simple, practical AI tools that bring immediate business value, not over-engineered systems.
Your chatbot will be accurate, stable, and easy for you to maintain or extend in the future.
AI Algorithms
Gated Recurrent Unit, Large Language Model, Multimodal Large Language Model, Transformer ModelAI Applications
AI Chatbot, AI Content Creation, AI Mobile App Development, AI Text-to-Image, Conversational AI, Natural Language Generation, Natural Language Understanding, Sentiment Analysis, Speech SynthesisAI Development Language
PythonAI Tools
Azure OpenAI, GitHub Copilot, Hugging Face, ReplitAI Models
ChatGPT, DALL-E, GPT-4, Midjourney AI, WhisperWhat's included
| Service Tiers |
Starter
$149
|
Standard
$349
|
Advanced
$799
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 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 |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$49 - $99
Additional Revision
+$49Frequently asked questions
About Roman
Senior Full-Stack Software Engineer | AI Automation Specialist
Augsburg, Germany - 4:00 am local time
I also run a small independent AI lab and maintain several live AI tools, used by people worldwide.
I work best independently, without endless meetings or micromanagement.
Give me your problem → I deliver a clean, fast, working solution.
What I can do for you
✔ Full-stack web development (React, Next.js, Node.js, TypeScript, AWS, Firebase)
✔ App development (React Native, Expo)
✔ API integrations & automation (OpenAI, 3rd-party APIs, data pipelines)
✔ AI-powered tools (image/video generation workflows, chatbots, assistants)
✔ AI content creation (Canva design, AI images, AI video clips for social media)
Why clients like working with me
• Very fast delivery
• Clear communication without unnecessary calls
• Ability to handle tasks end-to-end
• Strong problem-solving and architecture background
• Startup-friendly speed + enterprise-level quality
Tech stack
TypeScript, Node.js, React, React Native, Next.js, Firebase, AWS, Lambda, NoSQL, PostgreSQL, PHP (Symfony), REST, GraphQL, OpenAI, LangChain, Canva, Adobe tools.
If you need someone who can take a task, run with it, and deliver, let’s work together.
Steps for completing your project
After purchasing the project, send requirements so Roman can start the project.
Delivery time starts when Roman receives requirements from you.
Roman works on your project following the steps below.
Revisions may occur after the delivery date.
AI Agent Development
I build and train the chatbot on your content, set up the logic, UI, and run tests.
Integration
You receive the embed code (simple script tag) or I integrate the chatbot into your website for you.