Senior full-stack engineer from Kyiv. 15+ years shipping production software. I build, rescue and AI-enable SaaS products and WooCommerce stores. Top Rated on Upwork · 100% Job Success · 3,600+ hours · 50+ projects.
What I do
- 🛟 Legacy PHP/Laravel/WordPress rescue: audits, performance, safe upgrades
- 🛒 WooCommerce & payments: gateways, subscriptions, webhooks
- 🚀 SaaS & MVPs: Laravel / Next.js, Stripe billing, Docker
- 🤖 AI features: RAG search, in-app assistants, LLM workflows
- 🧭 Fractional tech lead for small teams
Selected work (full case studies at dorokhov.dev/case-studies)
- Real-time crypto arbitrage engine: 50+ exchanges, ~80M calc/s, <0.5 ms repricing · TypeScript, Node.js worker threads, Next.js
- AI news aggregator: embeddings-based story clustering and LLM post generation for a US media startup · Symfony, PostgreSQL
- Multithreaded data-mining system: parallel workers with proxy rotation and retries, 1M+ records processed into leads · PHP, Yii 2, Selenium, Docker
- Link-building platform: anchor management, shared donor-site base, one-click placement and auto-publishing to a site network · PHP, MySQL
- Freelance marketplace job monitor: built on the platform's official GraphQL API, ~3,900 postings/day, ~500 targeted Telegram alerts · Next.js, TypeScript, Drizzle
- WooCommerce recurring payments gateway: 7 payment methods, 0 card numbers stored (code)
Stack: PHP · Laravel · WordPress/WooCommerce · TypeScript · Next.js · Node.js · PostgreSQL/MySQL · Redis · Docker