🚀 Hi, I’m Andrei — Senior Frontend Engineer (with a Backend Twist)

I build scalable, high-performance web applications with a focus on clean code, smooth UX, and solid testing.
From GIS mapping platforms and cybersecurity tools to high-frequency trading (HFT) applications and backend services in Go, I thrive on solving complex problems and delivering impactful products.

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💡 What I Do Best

• Frontend wizardry with React, TypeScript, and modern tooling
• Creating robust test suites (Unit, Integration, E2E) with Jest, Testing Library, Playwright
• Designing scalable architectures and clean component patterns
• Golang backend development — gRPC/HTTP APIs, PostgreSQL integration
• Quick to adapt and learn — I pick up new tech stacks

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🛠️ Tech Toolbox

• Frontend: React.js, TypeScript, JavaScript, HTML, CSS/SCSS
• Backend: Go (gRPC, Chi, PostgreSQL, SQLite), Node.js
• Testing: Jest, Testing Library React, Playwright
• Databases: PostgreSQL, SQLite
• DevOps: Docker
• Methodologies: Agile / Scrum

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🌍 What I’ve Worked On

• 🗺️ GIS Platform — Map-heavy, data-rich interfaces for geo-data visualization
• 🛡 Cybersecurity Tools — Contributed to unit & e2e testing with Jest, Testing Library, and Playwright
• ⚡ High-Frequency Trading App — Performance-focused frontend with extreme optimization requirements
• 🔑 GophKeeper (learning project) — Secure client-server password & secret manager in Go with TLS authentication
• 🔗 URL Shortener (learning project) — Go-based service with JWT auth, gRPC & HTTP servers, PostgreSQL storage, and background workers — built to deepen my backend architecture skills

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🎯 Fun Facts

I debug better after coffee and cookies — sugar seems to boost both my patience and my console.log test skills 🍪☕.