NIZNIKSOFTWARE ENGINEER

Mateusz Niznik

M.Sc. Computer Science·Westcliff University·MBA·Bethesda University of California·M.Sc. E-Business·SGH Warsaw School of Economics

Biography

Software engineer with full-stack expertise across web, mobile, and game development. I build performant, intuitive products using JavaScript, TypeScript, React, React Native, Node.js, Python, and Unity-from scalable APIs to polished user interfaces. I combine clean engineering with thoughtful UI/UX design, crafting solutions that are technically robust, elegant, and built to delight the people who use them.

Skills

FrontendReactTypeScriptJavaScriptUI/UX
BackendNode.jsExpress.jsPythonFlaskDjango
MobileReact Native
GameUnity
CloudAWS

Connect

Mateusz Niznik

Products Shipped

0

Users Reached

0K+

Cards Cataloged

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Services

What I Do

One engineer across the whole stack-design, web, mobile and games. You get a single owner who takes an idea from concept to launch.

01/

UI / UX Design

Turn tangled flows into clear, accessible interfaces-wireframes to pixel-tight design systems that ship.

02/

Web & Mobile Development

Ship full-stack React, React Native and Node apps on AWS-typed, tested, and built to scale.

03/

Game Production

Prototype and launch Unity games-tight mechanics, smooth performance, and polish players feel.

Selected Projects

Selected Work

A mix of projects I've launched - from personal ventures to client solutions

Writing

From the Blog

Notes on engineering, AI, and building products that scale

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Contact

Let's Talk

I usually reply within a day.