Jan Wawrzyk

Worked on a production product where I improved UI consistency, responsive behavior, and authentication-related flows.

Challenge

The product needed more consistent frontend architecture and safer user flows around protected areas.

Approach

I introduced reusable components, worked with CSS-in-JS, and helped implement JWT access and refresh token authentication with protected routes.

Result

The codebase became easier to maintain, duplicate UI work was reduced, and protected user flows were clearer and more reliable.

Contract SaaS project for Nejservis focused on application logic, connected features, and a reliable technical foundation.

Challenge

The product needed features that were practical for real-world use while keeping the solution maintainable and easy to extend.

Approach

I worked full-stack, but mainly with a backend focus on application logic, feature integration, and technical reliability. AI Kurzy was another contract project delivered in a similar mode.

Result

The SaaS product gained a stronger base for future development and backend parts that were ready for follow-up features.

Alongside product work, I also delivered client-facing features and improvements for smaller and mid-sized projects, including AI Kurzy.

Challenge

Contract projects often require quick orientation in an unfamiliar codebase, practical decisions, and delivery without unnecessary complexity.

Approach

I adapted to each project based on what was needed most, sometimes more frontend, other times backend or integrations, always aiming for a clean and usable result.

Result

This gave me experience with varied requirements, fast onboarding into projects, and delivering features that provide immediate value to the client.