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Marszelewski.NET

Hi, I'm Patryk Marszelewski

  • Remote work
  • Poland 🇵🇱

I'm a Fullstack Developer with a strong focus on frontend and several years of experience building web and mobile applications. I work with JavaScript, TypeScript, Next.js, React and React Native to create responsive, scalable and user-friendly apps. I care about clean code, team collaboration and continuously improving products that make a real impact.

Tools I use

Languages

JavaScriptTypeScriptPythonPHPJavaC#

Frontend

ReactReact NativeExpoViteNext.jsStorybook

Backend & runtime

Node.jsExpressMySQLMongoDBRedisSQLitePostgreSQL

Styling

Tailwind CSSBootstrapStyled ComponentsCSSSassPostCSS

Tools

GitESLintFigmaDockerPortainerVPSPrettiernpmpnpmPostmanHoppscotch

Testing

JestVitestCypress

AI & assistants

CursorChatGPTGeminiClaudePerplexityHugging FaceOllama

Systems & software

Microsoft OfficemacOSLinuxMicrosoft DynamicsSQL

Accessibility

Accessibility

What I'm working on

I help brands, companies, institutions and startups create unique digital experiences – from strategy to implementation and product development.

Want to work together?

I'm open to new projects – get in touch and let's build something valuable.

Get in touch

Get in touch

Have a question or an idea? I'd love to chat.

Contact