You will get AI chatbot or RAG application for your business
Project details
You will get a practical AI chatbot, RAG application, or backend API system that can help your business use documents, internal data, and AI models more effectively.
I build AI-powered applications that go beyond simple prompt demos. Depending on your package, I can help you create a chatbot interface, document-based Q&A, knowledge search, backend APIs, database integration, admin dashboard, deployment setup, and technical documentation.
With over 10 years of experience as a full-stack and backend engineer, I have delivered 33+ projects across AI, fintech, commerce, GIS, blockchain, data labeling, SaaS, and enterprise systems. My core stack includes Python, FastAPI, Java Spring Boot, Node.js, React, PostgreSQL, Docker, Kubernetes, AWS, and OpenAI/Azure OpenAI integrations.
This project is ideal for startups, agencies, and companies that need a reliable engineer who can understand business requirements, design a practical architecture, and deliver a working AI product from idea to production.
I build AI-powered applications that go beyond simple prompt demos. Depending on your package, I can help you create a chatbot interface, document-based Q&A, knowledge search, backend APIs, database integration, admin dashboard, deployment setup, and technical documentation.
With over 10 years of experience as a full-stack and backend engineer, I have delivered 33+ projects across AI, fintech, commerce, GIS, blockchain, data labeling, SaaS, and enterprise systems. My core stack includes Python, FastAPI, Java Spring Boot, Node.js, React, PostgreSQL, Docker, Kubernetes, AWS, and OpenAI/Azure OpenAI integrations.
This project is ideal for startups, agencies, and companies that need a reliable engineer who can understand business requirements, design a practical architecture, and deliver a working AI product from idea to production.
AI Algorithms
Convolutional Neural Network, Deep Belief Network, Feedforward Neural Network, Gated Recurrent Unit, Large Language Model, Multimodal Large Language Model, Radial Basis Function Network, Self-Organizing Map, Transformer Model, YOLOAI Applications
AI Chatbot, AI Content Creation, AI Mobile App Development, AI-Generated Art, Automatic Speech Recognition, Conversational AI, Image Analysis, Image Recognition, Neural Style Transfer, Object Localization, Sentiment Analysis, Sequence ModelingAI Development Language
PythonAI Tools
Azure OpenAI, GitHub Copilot, Hugging Face, Jasper AI, Microsoft 365 Copilot, Microsoft CNTK, NVIDIA AI Platform, PyTorch, Replit, TensorFlowAI Models
AlphaCode, BERT, BLOOM, ChatGPT, DALL-E, Dolly, LaMDA, LLaMA, Midjourney AI, Naive Bayes Classifier, OpenAI Codex, Stable DiffusionWhat's included
| Service Tiers |
Starter
$300
|
Standard
$900
|
Advanced
$1,800
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 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
About Sanghyeon
AI Apps, RAG Chatbots & Backend APIs | Spring Boot, Python, React,SaaS
Seoul, South Korea - 9:57 am local time
I am a Senior Full-Stack Engineer and AI/Backend Developer with 10+ years of experience across AI, fintech, commerce, healthcare, blockchain, GIS, data labeling, and enterprise systems. I have led and delivered 33+ client projects from requirements analysis and architecture design to development, deployment, QA, and maintenance.
My core stack includes Java Spring Boot, Python, FastAPI, Django, Node.js, React, Vue.js, Next.js, PostgreSQL, PostGIS, Oracle, Redis, Docker, Kubernetes, AWS, and CI/CD.
I can help with:
- AI chatbot and RAG application development
- Backend API and database design
- Admin dashboard and internal tool development
- SaaS MVP development
- Business workflow automation
- Legacy system modernization
- Technical project management and architecture consulting
If you need a practical engineer who can understand your business requirements and deliver a working product, I can help you move from idea to production.
Steps for completing your project
After purchasing the project, send requirements so Sanghyeon can start the project.
Delivery time starts when Sanghyeon receives requirements from you.
Sanghyeon works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Review
I review your business goal, target users, documents, APIs, existing system, and expected chatbot or RAG workflow.
Architecture & Scope Planning
I define the chatbot flow, RAG structure, backend API design, database schema, integrations, and delivery scope.