Stanislav R.

Senior Python Developer | AI Agents, RAG & LLM Integration | Django

Senior Python developer and team lead — 10+ years in Python, Top Rated, 100% Job Success. I design and ship production AI systems: AI agents, RAG pipelines, and LLM integrations on Django/DRF and FastAPI backends. I own the architecture myself, and for larger scopes I bring in my team at Flexipy. Need AI that works in production rather than a demo? That's my core strength — agentic AI: AI agents that carry out multi-step work (LangGraph, tool calling, MCP), RAG over your own data, and the Python backends that make them reliable. Recent builds include an AI voice agent platform (telephony, Python/Azure), an SMS-to-AI assistant serving users with no internet access, and a multi-agent system for an existing product team — client feedback: "quickly ramped up on a complex multi-agent AI architecture." Two are posted in my portfolio below: Dev13, an AI agent operating system running 25+ specialist agents under a human-approval workflow, and Osvitly, a school platform with AI lesson drafting over MCP. I also own backend-heavy work end to end — database and API design, integrations, deployment — and help teams fix slow, messy, or hard-to-maintain Python/Django codebases by restructuring logic, stabilizing APIs, and cutting technical debt. I deliver end-to-end SaaS MVPs too: admin flows, auth, billing, deployment. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱: 🟢 AI agents & LLM features — OpenAI API (GPT-5), Claude, LangChain, LangGraph, MCP (Model Context Protocol) 🟢 RAG pipelines — embeddings, vector search (pgvector), document Q&A over your own data 🟢 AI document processing — PDF parsing & structured data extraction 🟢 Multi-agent systems & AI automation — agent orchestration, workflow automation (Celery, Redis) 🟢 AI chatbots, AI assistants & voice agents (Twilio, Azure) 🟢 Machine learning & generative AI features shipped into live products 🟢 SaaS backends and MVPs (Django / DRF, FastAPI, PostgreSQL) 🟢 REST APIs, webhooks, and third-party integrations 🟢 Admin panels, authentication, roles & permissions 🟢 Refactoring & scaling legacy Python / Django systems 🟢 Docker-based deployment, AWS, and CI/CD 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲 𝘁𝗼: 🟢 Add AI / LLM features to an existing platform — assistants, document Q&A, automation 🟢 Build an AI-first product — AI agents, chatbots, RAG over their own data 🟢 Turn an AI prototype into a production system 🟢 Launch the backend for a new SaaS product 🟢 Stabilize and scale an existing Django application 🟢 Automate manual business workflows with AI 🟢 Get senior-level execution without unnecessary complexity 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: Over 10+ years I've shipped products across SaaS, fintech, and internal business tools. I build modular, well-structured systems that stay easy to extend as your product grows — especially strong in API-heavy platforms, async workflows, and third-party integrations. As a senior Python developer I lead a team of 1–5 engineers and review everything that ships. I'm currently retained long-term as a principal AI-native software engineer and agentic development architect. My GitHub: s-rybonka 𝗖𝗼𝗿𝗲 𝘀𝘁𝗮𝗰𝗸: Python · Django · Django REST Framework (DRF) · FastAPI · PostgreSQL (pgvector) · Qdrant · MySQL · Celery · Redis · Docker · AWS · GitLab CI/CD · REST APIs · Webhooks · Stripe · Twilio · OpenAI · Claude API · LangChain · LangGraph · MCP · React 𝗛𝗼𝘄 𝘄𝗲 𝘀𝘁𝗮𝗿𝘁: For projects where the scope needs validation, I offer a paid discovery phase (AI consulting & architecture review) — a practical way to align on architecture, priorities, and a delivery plan before a larger engagement. You leave with a clear roadmap, fixed next steps, and no guesswork. If you need a senior Python developer for AI agents, RAG, LLM integration, or a solid Django/FastAPI backend — send me a message. I'll reply with honest feedback on your project.