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Mykhailo K.
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Mykhailo K.

AI Developer | AI Voice Agent | AI Chatbot Developer | AI Agents | RAG

Hey! I'm Mike, top 1% AI developer and machine learning engineer. In short, you've found your best AI developer and partner: I've helped more than 200 companies in fintech, healthcare, real estate and e-commerce scale faster without scaling headcount. Want to start small? Book a consultation with an AI developer who'll show you how to turn your missed opportunities into revenue. Working with me as your AI developer means you'll walk away with revenue-ready, production-grade AI systems for SaaS, healthcare, real estate and fintech businesses. What I build: ✅ AI Agents & AI Chatbots – As an AI developer, I do Python-based chatbot development with conversational AI that connects to your CRMs, APIs, and internal tools. Real automation, not just chat interfaces. MCP integration. Whether you need a sales agent, support bot, or an AI agent handling complex multi-step workflows, I build systems that actually work. ✅ AI Voice Bots – Phone agents for restaurants, hospitality, and service businesses, built by an AI developer who knows voice. 24/7 availability with reservation and support capabilities. ✅ LLM RAG Systems – Machine learning-powered document search for contracts, knowledge bases, and internal data. As an AI developer, I build on retrieval-augmented generation (RAG) for accurate, grounded answers from your own data. ✅ AI Co-pilots – Internal tools for finance, operations, and customer support teams. Think GPT-4-powered assistants with prompt tuning by an AI developer, tailored to your workflows. ✅ SaaS AI Products & MVPs – Full stack AI developer expertise from architecture to first paying users. Complete web and AI developer capabilities for end-to-end AI applications. I handle everything from full stack app architecture and REST API design to frontend builds in React and Next.js, so you get a complete product, not just a backend. ✅ Machine Learning Solutions – Time series forecasting, recommendation engines, fraud detection, and data science implementations from an AI developer with a real ML background. Recent case studies: - AI Healthcare Recommendation Engine – Python-based machine learning system helping UK patients search, compare, and book medical services by price, location, and availability. - AI CFO for Small Businesses – AI chatbot that connects to financial tools, surfaces insights, and runs business scenarios automatically. A great example of what a skilled AI developer can deliver for finance teams. - AI Travel Concierge – Multi-step AI agent handling flight/hotel search with business logic and booking-ready outputs. Built by an experienced AI developer and chatbot developer with deep knowledge of conversational AI flows. - Restaurant AI Voice Agent – 24/7 phone AI agent built in Python by an AI developer, handling reservations via API and reducing missed calls. - AI Document Analysis (Legal/Mortgage) – Machine learning pipeline that reads complex documents, extracts data, and flags issues for compliance, delivered by an AI developer. Tech Stack: ✅ AI & Machine Learning OpenAI (GPT-4/4o/o1/o3), Claude, Gemini, LangChain, LlamaIndex, LangGraph, RAG, LLM RAG, MCP, vector databases ✅ Python Development Python, FastAPI, scikit-learn, pandas, NumPy, PyTorch/TensorFlow for machine learning. I write clean, well-structured Python code that's easy to maintain and scale — not the kind of spaghetti scripts you inherit from someone's side project. From Python scripting and automation to building full Python backends with async support and proper error handling, this is where most of my work lives. ✅ Chatbot Development & Voice AI Conversational AI, AI agents, chatbot developer tools, prompt tuning, Twilio, VAPI, Ultravox, WhatsApp, Telegram, web chat widgets ✅ Full Stack & Web Development Python backend, Node.js, React, Next.js, REST APIs, Stripe integration. I'm comfortable owning the full stack — database schema, backend logic, API layer, and a clean frontend. Whether it's a full stack web app from scratch or plugging AI into an existing product, I can take it from Figma to deployed. That includes full stack integrations with third-party tools, auth flows, dashboards, and anything else that makes a product actually shippable. ✅ Data Science & ML Time series analysis, recommendation systems, fraud detection, analytics dashboards (Streamlit, Dash) ✅ DevOps & Cloud Docker, AWS, GCP, CI/CD pipelines for AI products ✅ Security & Compliance GDPR-friendly architectures, PII handling, on-prem/VPC deployments for enterprise Not sure where to start? Book a consultation and let's turn your AI idea into reality! 100% job success. See client reviews!

🇵🇹Lisbon, Portugal$70/hr100% JSS4.98 (44)Since Dec 2019

Earnings and projects

MRR
$626

Last 6 months ÷ 6

World#68,547 / 412k
🇵🇹Country#288 / 2,011
Revenue, last 30 days
$0

Last 6 months: $3.8k

Total earnings
$191k

Billed in all: $191k

World#16,548 / 412k
🇵🇹Country#124 / 2,011
Per project
$2.5k

$3.8k in the last 6 months

World#65,297 / 412k
🇵🇹Country#374 / 2,011
Projects, last 6 months
1

Across 2 contracts

100% fixed0% hourly
World#128,092 / 412k
🇵🇹Country#538 / 2,011
Projects in all
77

Across 85 contracts

80% fixed20% hourly
World#38,397 / 412k
🇵🇹Country#178 / 2,011

Earnings, last 30 days

$191kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$188k$190k$192k$194kOct 8Oct 23Nov 7

Skill rankings: Top 15% in Deep Learning

Ranked by MRR among everyone on Upwork with the skill.

  1. #200Conversational AI782 freelancers · 🇵🇹 #1Top 26%
  2. #401Deep Learning2,743 freelancers · 🇵🇹 #2Top 15%
  3. #441Natural Language Processing2,688 freelancers · 🇵🇹 #3Top 16%
  4. #520LLM Prompt Engineering2,457 freelancers · 🇵🇹 #2Top 21%
  5. #537Prompt Engineering2,859 freelancers · 🇵🇹 #5Top 19%
  6. #561AI Consulting2,321 freelancers · 🇵🇹 #6Top 24%
  7. #607Chatbot Development3,106 freelancers · 🇵🇹 #1Top 20%
  8. #652AI Implementation2,382 freelancers · 🇵🇹 #4Top 27%