Oleksandr T.

Your AI chatbot should answer customers and close deals at 3 a.m., not just look good in a demo. I'm an AI Chatbot Developer who builds the ones that run in production: 53 Upwork projects, 3,000+ hours, 100% Job Success, Top Rated. 🧠 AI Agent Developer · 🤖 AI Chatbot Developer · 📚 AI RAG · 💬 Telegram, Slack & WhatsApp bots · 🚀 18+ yrs coding 👋 About Me I'm Alex, a senior AI Chatbot Developer and AI Agent Developer from Kyiv, Ukraine, with 18+ years of coding and bots since 2013, from simple Slack bots to AI RAG and LLM-powered AI agents. Before going full-time freelance in 2018 I built banking software for Barclays and Deutsche Bank, so every project gets enterprise-grade code: secure, tested and documented. One agentic AI developer, no hand-offs: as your AI Chatbot Developer and AI Agent Developer I handle AI Chatbot Development, AI Agent Development, backend, admin dashboard and deployment myself. You get one point of contact, daily updates and a working demo every week. 🧠 What I Build • AI Agent Development of multi-agent systems on LangChain, LangGraph, CrewAI and AutoGen with tool calling, memory and human handoff, for sales, support and lead generation (30+ agents shipped as AI agent builder) • AI Chatbot Development of Python chatbots for websites, Telegram, WhatsApp, Slack and Messenger with Natural Language Processing (NLP) → 70%+ of customer queries resolved without a human • AI RAG systems that ground Generative AI answers in your docs, CRM and databases on FAISS, Pinecone and Chroma, with source citations • AI sales agents & deal closer chatbots to qualify leads, book calls and follow up 24/7 → up to 35% higher conversion • AI Agent Development & AI agent automation with AI agent n8n workflows and API integrations connecting agents to your CRM → 400+ hours/month saved on average • Full-stack ai chatbot development and Web Development with React, HTML5 & Node.js admin dashboards, PHP and WordPress plugins, Stripe & Blockchain payments (AI Bot and bot development end to end) 🚀 Recent Projects • CRM & booking SaaS: as AI Agent Developer I built a multi-tenant AI agent service of 3 agents (booking, sales, analytics) with 12+ API tools for 40+ businesses → bookings 100% automated, 60% less admin time • Telegram networking startup: end-to-end AI Chatbot Development of a GPT-4 AI agent for double opt-in warm intros, shipped in 6 weeks → 1,200+ users, 300+ intros made, 85% opt-in rate • Online community: AI Chatbot Development of a Generative AI chatbot with AI RAG over 500+ documents auto-translating for 5,000+ members in 12 languages → 80% of questions answered without an admin • AI product team (long-term): as AI Agent Developer and AI agent creator I build LangChain + LangGraph agents with AI RAG on MongoDB Atlas, adding reranking, retries and automated evals → 10K+ documents searchable, answer accuracy 72% → 91%, 40% lower LLM cost • Spreadsheet chatbot SaaS: as lead AI Chatbot Developer I built a Telegram + WhatsApp chatbot that answers natural-language questions via AI RAG over spreadsheet data (Data Analysis without formulas) → 10K+ users, 1M+ queries answered, 5+ years in production 🏗 Industries: 7+ sectors across 30+ countries • SaaS & CRM: AI agent development for bookings, sales chats and lead qualification, support based on AI RAG • Healthcare & telemedicine: patient FAQ RAG chatbot, medical documentation AI agent with AI RAG • E-commerce & retail: as AI Chatbot Developer I built order-taking chatbots and chatbot marketing on Telegram, Messenger and Shopify • Insurance & fintech: chatbot for quotes and claims, payment bots with Stripe, AI agent crypto for Blockchain • Recruitment & HR: AI chatbot for hiring sites, AI Agent Development for Telegram warm intros • Communities & social apps: Telegram bots for 5,000+ members Open to any domain where AI chatbot development or AI agent development can save time or drive business development 🛠 AI Chatbot Development & AI Agent Developer Stack • AI Agent Development: LangChain, LangGraph, CrewAI, AutoGen, OpenAI • LLM: Open AI chatbot, Claude, Gemini, GPT-3+ integrations • Python: Flask, FastAPI, PyTorch & TensorFlow • AI RAG: FAISS, Chroma, Pinecone, Weaviate, MySQL, PostgreSQL, MongoDB • Messengers: Website chat, Telegram bot, WhatsApp chatbot, Facebook chatbot, Instagram chatbot, Slack bot & Discord bot • Platforms: DialogFlow, ManyChat, Botpress, Voiceflow chatbot, Tidio, Conversiobot, Rasa & GHL chatbot • Web developer: JavaScript, Node.js, React, PHP • AI/ML: Artificial Intelligence, Machine Learning, Deep Learning, Natural Language Generation 🤝 How We Start Send me your idea: 2–3 lines about your business and what the AI agent should do. Within 2 hours you get a clear plan with the stack, 3 quick wins and a realistic launch date, free of charge. Prefer to talk first? Book a 30-minute consultation. 📩 Looking for an AI Chatbot Developer or AI Agent Developer who ships to production, not demos? Let's build it.