Mikhail Koviazin, Developer in Shanghai, China
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Mikhail Koviazin

Bio

Mikhail is a senior full-stack engineer with 12+ years of experience specializing in web scraping and browser automation under anti-bot protection. He's built scraping systems covering 5+ million products across 1,000+ sites and shipped 50+ browser extensions for Chrome, Firefox, and Safari. Mikhail's recent focus is on AI agents and browser automation, including LLM extraction with deterministic validation, CAPTCHA solving without a headless browser, and systems achieving 99%+ reliability.

Portfolio

Verifast, Inc
JavaScript, TypeScript, AI Agents, OpenAI, Large Language Models (LLMs)...
Saleo Inc.
React, Chrome Extensions, Node.js, Amazon Web Services (AWS), AWS Lambda...
Numen Capital LLP
JavaScript, React, Chrome Extensions, Full-stack, MV3, MV2...

Experience

  • Web Development - 12 years
  • JavaScript - 11 years
  • Web Scraping - 11 years
  • React - 11 years
  • Node.js - 11 years
  • NoSQL - 10 years
  • TypeScript - 10 years
  • Chrome Extensions - 10 years

Preferred Environment

Git, WebStorm, Windows, Node.js, Playwright

The most amazing...

...work I've done is a browser-automation workflow that cut a property-management job from 8 minutes, often timing out, to 70 seconds at over 99% reliability.