Open to opportunities

Andrej Petrulák

@andrejpetrulak

I build and deploy custom websites, web apps and business automations for small companies. React, React Native, Cloudflare Workers, no templates.

Slovakia

Message

What I'm looking for

I'm looking for work building custom websites, web apps and business automations, with clear scope, ownership of the code, and projects delivered live, tested and monitored.

I've built custom-coded websites, web apps and business automations for small companies under TatraByte, delivering projects live, deployed and monitored on client domains.

At ServisPCdoma, I moved from IT support and network/server administration into software and web development for businesses, schools and medical clinics. I rebuilt servispcdoma.sk in React and Vite, created a printer-fleet monitoring SaaS, and automated Microsoft 365 and Graph administration across six schools.

My products include Rezerva, a production request-to-book system for guesthouses built with Cloudflare Workers, D1 and cron, and Nákupný Zoznam, a React Native shared shopping-list app with offline sync, widgets, notifications and voice input.

I work hands-on from copy and UI design through deployment, technical SEO, monitoring and automation. I agree fixed scope and price up front, share live previews while I build, and hand over tested code that clients own.

Experience

Work history, roles, and key accomplishments

Current

Founder & Full-Stack Developer

Current

TatraByte

Jun 2026 - Present (2 months)

My own brand for custom websites, web apps and business automation. Hand-coded business websites on Cloudflare Workers and Pages, a request-to-book reservation system for small guesthouses running on Workers, D1 and cron, React Native apps for Android and iOS, and automations that connect invoicing, Microsoft 365 and other systems over APIs.

Cloudflare Workers Cloudflare Pages React Native APIs Business Automation Microsoft 365

Current

IT Specialist / Web & Software Developer

Current

ServisPCdoma

Sep 2019 - Present (6 years 11 months)

Started in IT support, network and server administration for businesses, schools and medical clinics, then moved into building software and websites for the same clients. Redesigned servispcdoma.sk in React and Vite with full technical SEO, and built a printer-fleet monitoring SaaS whose self-updating agents report toner levels across multiple sites.

React Vite Technical SEO SaaS Microsoft 365 Network Administration Server Administration