You will get an AI feature added to your website or app
Project details
Add a smart AI feature to your existing product — without rebuilding it. I integrate AI into your website or app: chatbots, text generation, summarization, classification, or automation workflows. I work with your current stack and your data, keep API costs low with a cost-aware setup, and deliver clean, documented code you fully own.
Whether you want an assistant that answers from your documents (RAG), a feature that generates or summarizes content, or a multi-step automation, I'll build it to fit your app and your users. I use OpenAI, Groq or Gemini depending on your needs and budget, with source citations and sensible fallbacks where they matter.
I've built several production AI assistants and tools — you can see live demos in the gallery. Tell me what you want the AI to do and I'll suggest the best approach for your budget before we start.
Whether you want an assistant that answers from your documents (RAG), a feature that generates or summarizes content, or a multi-step automation, I'll build it to fit your app and your users. I use OpenAI, Groq or Gemini depending on your needs and budget, with source citations and sensible fallbacks where they matter.
I've built several production AI assistants and tools — you can see live demos in the gallery. Tell me what you want the AI to do and I'll suggest the best approach for your budget before we start.
AI Development Type
Knowledge Representation, Model Tuning, Recommendation SystemAI Tools
Keras, PyTorch, TensorFlowAI Development Language
PythonWhat's included
| Service Tiers |
Starter
$120
|
Standard
$350
|
Advanced
$700
|
|---|---|---|---|
| Delivery Time | 4 days | 9 days | 16 days |
Number of Revisions | 1 | 2 | 3 |
AI Model Integration | |||
Detailed Code Comments | |||
Knowledge Graph | - | - | |
Model Documentation | - | ||
Ontology | - | - | - |
Source Code | |||
Taxonomy | - | - | - |
Optional add-ons
You can add these on the next page.
Extra AI feature
(+ 3 Days)
+$90
RAG over your documents
(+ 5 Days)
+$150
Voice input & output
(+ 4 Days)
+$120Frequently asked questions
About Aleksa
Full-Stack Developer - React/Next.js, Node & .NET + AI/LLM (RAG)
Nis, Serbia - 1:31 pm local time
Frontend
• React, Next.js & TypeScript for fast, responsive, intuitive interfaces
• Angular for enterprise-grade dashboards and complex data-driven systems
• Clean UI/UX with Tailwind, MUI and custom, reusable components
Backend
• .NET / C# and Node.js for reliable, secure, scalable APIs
• Clean Architecture, SOLID principles and professional engineering practices
• Third-party integrations, authentication and core business logic
Databases
• PostgreSQL, SQL Server and EF Core — efficient queries, indexing, large datasets
AI / LLM (my edge)
• RAG assistants grounded in your own documents, with sources for every answer
• OpenAI, Groq and Gemini integrations, vector search with pgvector
• AI-powered features: chatbots, text generation, classification, automation
Selected work (live demos in my portfolio): AI knowledge assistants (RAG), marketplace & e-commerce platforms, and business systems.
I communicate clearly, meet deadlines and take full ownership of my work. Whether you need a brand-new app, an AI feature, or improvements to an existing system — let's build something great together.
Steps for completing your project
After purchasing the project, send requirements so Aleksa can start the project.
Delivery time starts when Aleksa receives requirements from you.
Aleksa works on your project following the steps below.
Revisions may occur after the delivery date.
Define the AI feature
I clarify what it should do, the data it uses, and what success looks like.
Build & integrate
I implement the AI feature and connect it into your app and UI.