Mati Krawczyk

Artist and
Software Engineer

Code, creativity, and a drive to push limits.

Featured Projects

Projects I've built end-to-end: design, code, launch.

Guardians of the Kingdom TD
Guardians of the Kingdom TDMobile Game

Designed, developed, and released a cross-platform mobile tower defense game on iOS and Android. Features include handcrafted levels, randomized challenges, progression systems, and integrated in-app purchases, delivering both strategic depth for players and experience in end-to-end mobile game development.

UnityC#
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JK Cats
JK CatsBusiness Website

Created and launched the JK Cats website for an UK based British Shorthair cattery, featuring dynamic scroll sections for news and litters, individual cat profile pages with immersive galleries, shop functionality, and a contact form - all designed to be visually engaging and intuitively navigable across devices.

HTMLCSSJavaScript
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Loan Payments Calculator
Loan Payments CalculatorWeb app

Built a responsive loan calculator web app using React, designed to handle large loan amounts beyond the limits of typical online calculators. Features include dynamic input handling, adjustable loan duration and interest rate sliders and real-time calculations. Ideal for exploring scenarios such as financing high-value purchases over multiple years.

ReactTypeScriptVibe Coding
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Photography Portfolio Website
Photography Portfolio WebsitePhotography Portfolio

Developed a high-performance photography portfolio using Next.js with custom image optimization. Instead of relying on Next.js Image component that processes images server-side, I created a custom Sharp-based optimization script that pre-processes images into multiple formats (WebP/AVIF) and sizes (400w-2800w), eliminating server load and ensuring instant image delivery. Features responsive picture elements with art direction, smooth AOS animations, and cinematic hero sections optimized for both mobile and desktop viewing.

Next.jsTypeScriptSharpCSS
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