Kramarenko Yaroslav
From: Ukraine
Location: Kharkiv, UA
On Useme since 6 January 2026
About me
AI + Full-Stack Developer specializing in Agents, RAG pipelines, and API integrations. I build production-ready web apps that combine modern frontends with reliable backends and real-world AI features-chatbots, voice/VoIP automation, and computer-vision workflows.
On the frontend, I deliver clean, responsive UIs with React.js. On the backend, I work across Python, C#, PHP (Laravel), C++, designing secure APIs, background jobs, and scalable services. I’m strong with data layers too-PostgreSQL and Microsoft SQL Server-including schema design, performance tuning, and complex queries.
For AI work, I develop AI agents, RAG systems (document ingestion, embeddings, retrieval, tool-calling), and AI chatbot solutions tailored to business workflows. I also handle advanced media and real-time needs: Twilio API integrations, VoIP workflows, and voice-driven automation. For vision and graphics-heavy tasks, I use OpenCV and OpenGL to build systems that process images/video or render high-performance visuals.
Categories
Portfolio
Fitness App
A complete Fitness app for females to save workouts, progress and stats. This app allows users to choose or create (custom) workouts and diet plans and routes along with an e-shop to buy supplements and workouts equipments.
Conversational AI Chatbot | LLM, Langchain, RAG
Amelia puts Conversational AI and Generative AI to work for businesses, elevating engagement, empowering employees and transforming operations. Discover what AI can do when it’s more than just idle chatter.