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Andrii Kovalenko
Andrii Kovalenko

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I am a SASS engineer (React, Next.js, Supabase)

Many founders and product teams struggle with sluggish performance, complex database bottlenecks, or development cycles that drag on forever. I fix that by building fast, secure, and highly scalable web applications using a modern, battle-tested stack: Next.js, React, Supabase, and Node.js.

By combining the server-side power of Next.js with the real-time capabilities and robust relational structure of Supabase, I build MVPs and enterprise features in half the time of traditional legacy stacks—without cutting corners on security or code quality.

🛠️ MY CORE TECH STACK
• Frontend: React, Next.js (App Router, SSR, SSG, ISR), Tailwind CSS, TypeScript
• Backend & APIs: Node.js, Next.js API Routes, Express, RESTful APIs, Webhooks
• Database & Auth: Supabase, PostgreSQL, Row Level Security (RLS), Realtime Sync, PostGIS
• Ecosystem/Integrations: Stripe Payments, Third-Party APIs, Edge Functions, Vercel

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