Jacek Grecki

Meet Jacek

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I'm Jacek, a one-person web studio in Rotterdam working under the name G.O.T Developer Studio. I design and build websites, online shops and small apps, and I handle the whole job myself: design, code, SEO, hosting and the launch.

What I build:
• Websites for small businesses: fast, smooth on phones, multilingual (PL / NL / EN), set up for Google and AI search from day one
• Shopify stores: custom themes built on the client's own store
• Web apps and SaaS: Next.js + Supabase (DietCoach, a diet-planning platform for personal trainers)
• G.O.T Panel: a simple client panel where business owners edit their own texts, prices and photos without breaking the site
• Games: ZMORA, my own dark survival game for iOS rooted in Slavic folklore, available on the App Store

Recent client work: Artistic Projects (print and merch studio, Rotterdam), Maison Noor (home and fragrance shop, Barendrecht, on Shopify), IZEVER (construction, The Hague), Beauty Secret Katie, Amor Beauty Studio and Black Crow Cleaning.

How I work: I talk to you directly, with no account managers in between. You own your domain and accounts from day one, and I test everything on real iPhones and in Safari before launch. I speak Polish, Dutch and English, and I usually reply within 24 hours.

Stack: Next.js, React, TypeScript, Supabase, Vercel, Shopify (Liquid), WordPress, GSAP, Three.js, Blender.