Oleg K.

Hi! I'm an AI Developer and AI Agent Developer from Portugal 🇵🇹. I build AI Agents that handles 300+ support cases/day, and apps that raised $6M+. 47 projects shipped: production AI agents, RAG systems and AI SaaS that make money ABOUT ME "You built an interesting project in very short time." Saket Agarwal (Director of Engineering at Salesforce), CTO at evluv 10+ years, $600K+ earned on Upwork, 10,472+ hours billed. Top Rated Plus. AI Developer & AI Agent Developer. What is running in production right now as AI Developer | AI Agent Developer: ✅ Healify: AI health companion. Idea to production MVP in 6 months, ~$2M raised ✅ 300+ chats/day on a RAG support and lead-gen chatbot for a UK energy company ✅ 100K+ documents through RAG and OCR pipelines — invoices and bills of lading for port logistics ✅ 6M+ users on RL Garage, cross-platform mobile app ✅ Production AI support agent on LangChain — intent classification, structured tool calling, multi-turn regression evals in LangSmith, and a full compliance pass for a regulated subscription business ✅ Self-hosted RAG over engineering drawings — SVG/DXF parsing, vector retrieval, knowledge-graph layer for auditable answers with citations ✅ AI voice agent — inbound and outbound calls, lead qualification, appointment booking, CRM-connected ✅ 10,000+ active users on a multi-tenant AI SaaS platform — Stripe billing, RBAC, row-level security ✅ 25+ AI automation workflows (LanChain, Agents SDK) wiring AI agents into CRMs, Slack, Telegram and WhatsApp 💬 3 of my last 3 paid consultations turned into ongoing projects WHERE I DELIVER AI Developer, 25+ agent built: custom AI agents and agentic systems with LangChain, LangGraph and MCP: tool calling, multi agent workflows, error handling, observability, evals, production deployment. AI Mobile Developer, 6M users, mobile AI apps and MVPs on React-Native, Next.js, Node.js, Python FastAPI, Supabase and Stripe billing. Idea to production in 6-12 weeks. AI Developer/ AI Chatbot Developer, 300+ chats/day: RAG chatbots and AI assistants for customer support and lead generation: WhatsApp, Telegram, web widgets, CRM integrations, human handoff. MCP Developer, 5+ platform integrations: custom MCP servers connecting your APIs, databases and internal tools to Claude Desktop, ChatGPT and Cursor. AI Developer | RAG Developer / LLM Developer — retrieval pipelines with pgvector and Pinecone: embeddings, hybrid search, reranking, grounded answers with citations. Generative AI Developer / Python AI Developer — OpenAI API and Anthropic Claude API integrations inside existing products, without breaking what already works. INDUSTRY IMPACT as AI Developer and AI Agent AI SaaS Platform, AI Chatbot SaaS, RAG Knowledge Base — 10,000+ users, subscription and usage-based billing, 99.9% uptime. Document Automation, Document Intelligence, OCR AI — 2K+ documents processed, 90%+ manual work reduction in port logistics. Ecommerce Chatbot, WhatsApp Automation, Customer Support AI — 300+ chats/day with lead capture and human handoff. Healthcare AI Developer, Real Estate AI, Fintech MVP, EdTech AI — AI agents, RAG systems and AI SaaS delivered across regulated and non-regulated domains. Voice-to-Book AI App, Cross-Platform Mobile AI — 5.0 stars on App Store and Google Play, shipped solo as an AI application developer. HOW I BUILD 25+ agent builds: langchain, langgraph, mcp server, tool calling, function calling, multi agent systems, agentic workflows, prompt engineering, rag pipeline, retrieval augmented generation, langsmith evals. 15+ platforms: nextjs, react, typescript, nodejs, python fastapi, supabase, postgres, pgvector, pinecone, stripe, aws, azure, vercel. 10+ bots: whatsapp chatbot, telegram bot, conversational ai, knowledge base chatbot, customer support ai, openai api, anthropic claude api, gpt-5. One full stack AI Developer, no hand-offs: agent logic, RAG layer, backend, frontend, deployment, and the evals that prove it still works next month. 🤝 HOW WE START Need an AI Agent developer or AI Developer who actually ships? Shoot me a message or invitation and I'll send you a personalised loom on how I can help!