Hi I’m
Sebastian

Software Engineer with 8+ years building scalable web applications and multi-brand platforms. Specialized in TypeScript, React, and Next.js with strong focus on architecture, performance, and maintainable systems. Frontend-strong, fullstack-leaning engineer using AI-assisted development.

Experience
8 years
Projects
+30

Hi I’m Sebastian

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Software Engineer
photo introducing me
Software Engineer

Currently employed in: Home.pl

Some of the Projects

Experience History

Company name

Home.pl

Position

Frontend developer

Period of employment

10.05.2022 - now

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  • Designed scalable multi-brand e-commerce architecture
  • Influenced architectural decisions around rendering, caching, and data flow
  • Implemented SSG (Gatsby), SSR/ISR and caching improving performance and stability
  • Created internal design system improving reuse and delivery speed
  • Improved Core Web Vitals and reduced system complexity
  • Used AI tools (Claude, Copilot, MCP) to accelerate development and refactoring

Company name

Intermania Wadowice

Position

Web Developer

Period of employment

01.09.2017 - 10.05.2022

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  • Delivered production web applications and websites end-to-end
  • Delivered production web applications and websites end-to-end
  • Developed custom-coded WordPress themes from scratch, without page builders
  • Worked directly with clients: requirements, UX/design, implementation and deployment
  • Improved performance, SEO, and page speed
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