Andrii N.

Senior AI Engineer (15 yrs, Top Rated Plus, 100% JSS) building production AI agents, RAG chatbots and LLM integrations for marketing and e-commerce teams. Your AI demo worked. Then it hit real data, real users and real ad spend, and broke. I fix that. 📩 Send your brief today - expect a concrete action plan back within 2 hours. 🏆 Why work with me? 🥇 Senior AI Developer and OpenAI developer with a track record of production-ready systems. 🥇 Expert AI Agent architect, agentic AI developer, and AI agent saas specialist delivering 10x ROI across SaaS, E-commerce, and Fintech. 🥇 Top-Rated AI Chatbot Developer - OpenAI developer, Bolt AI Developer, chatbot developer, and GPT-4 expert. ❇️ Custom AI Agent & Autonomous Systems As a dedicated AI Developer, I build robust business logic - not wrappers. My AI Agent architecture relies on LangChain, LangGraph, and CrewAI. As an AI Developer with LangChain and Zapier expertise, I connect AI agent automation workflows to Slack, Shopify, and enterprise backends. Every AI Agent doubles as a 24/7 AI sales agent. As a Bolt AI Developer and AI web developer, I ship AI agent saas systems with front-end developer AI interfaces. As an OpenAI developer and generative AI agent specialist, the OpenAI API, GPT-4, and ChatGPT sit at the core of every AI Agent build. My AI agent python and AI agent n8n experience covers every layer of the automation stack. ❇️ AI Voice Chatbot, AI Phone Agent & AI Call Agent As an AI voice chatbot and AI voice assistant specialist, I build AI voice VAPI systems, AI phone agent flows, and AI call agent pipelines for sales, support, and AI agent real estate. My AI voice chatbot covers AI voice clone, AI voice chat, AI voice call, and WhatsApp AI chatbot channels. My AI agent real estate deployments use AI phone agent flows to qualify leads 24/7. ❇️ AI Chatbot Developer, LLM Engineering & AI Agent RAG As an AI Chatbot Developer, I build bots for WhatsApp, Telegram, and Web - GPT chatbot, OpenAI chatbot, and Telegram chatbot solutions. As a chatbot developer and AI bot developer, I integrate GPT-4, ChatGPT, and LLM backends. My AI agent rag and advanced RAG pipelines rely on Pinecone, Weaviate, and Milvus. As a Generative AI Developer, I handle LLM prompt engineering for OpenAI, Anthropic, and Llama. Medical documentation agent AI RAG is a specialist engagement for healthcare clients. ❇️ AI Agent for Sales, CRM & Digital Marketing Automation As an AI Agent architect and AI Backend Developer, I build AI sales agent and business development automation covering HubSpot marketing automation, Zoho marketing automation, digital marketing automation, YouTube automation, and social media marketing automation via API integration Python. My AI agent real estate and AI agent marketing work covers full-funnel automation pipelines. ❇️ Machine Learning, AI Deep Learning & Data Science As a machine learning expert, AI deep learning specialist, and data scientist, I build computer vision models using PyTorch and TensorFlow. My work covers Python data analysis, AI data analytics, Python web scraping, and AI classifier builds. As a Python full stack developer and AI app developer, I handle API integration Python, analytics engines, and AI model training. ❇️ AI SaaS, Full Stack AI & Enterprise As a Full Stack AI SaaS Developer, Bubble Developer AI, and iOS Developer AI, I build web application platforms and mobile AI. For Enterprises: multi-agent systems for 500k+ users and AI voice chatbot for enterprise sales. For Startups: AI Chatbot Developer and Python full stack developer shipping AI Agent and AI phone agent fast. For Deep Tech: AI deep learning, AI agent rag, and medical documentation agent AI RAG made actionable. Still wondering if I'm the right AI Developer for this? ▪ Agency AI - US based client. Shopify, Google Ads, Meta Ads Marketing App. AI Strategist, MCP, Claude official connector, GPT official plugin, shopify plugin. ▪ DoLead - France based performance marketing client. Google Ads, Meta Ads, TikTok, Taboola, Snapchat. Metrics, AI Solutions & ▪ Clevergig (Beepl) - Dutch Shift planning service (b2b) with 1k+ partners & 10k+ active users per day. ▪ Credible - US Mortgage refinance service with 10+ third party integrations. ▪ BeLive - Multi-provider interactive streaming video platform (youtube, linkedin, facebook, amazon, etc) Ready to fix your workflow or start new project? Let's talk. Last Update: 19.10.2026