When I applied to CHECK24, I reached for Zod to validate the input in the coding challenge. It caught someone’s eye. I later learned that my future team lead had noticed the type-safety habit and argued for me. I was still at university, and I ended up on his team building insurance-comparison flows in React, TypeScript, and PHP/Symfony.
That was not where it started. My first professional software job came at nineteen, at homevoice, building property-management software with React and Spring Boot. Around and between studies I also freelanced, building websites for artists and small businesses, which taught me how to explain technical possibilities and constraints clearly to clients and collaborators without a technical background. I left CHECK24 with a good review and an open door to return, then moved to BuildlinX, where I now carry architecture responsibility across selected product areas: from the web frontend through the backend to the edge systems, in TypeScript and Go.
In my own projects, I spend a lot of time exploring the TypeScript ecosystem. I like wiring a system so that a change to the database schema shows up as a type error in the frontend, where the mistake surfaces at compile time instead of on someone’s screen. Lately that means leaning on Effect, which I use to structure modular, composable TypeScript applications; typed errors and dependency injection are part of that, not the whole point. I think it’s currently the strongest foundation TypeScript has for that kind of architecture, though I try not to be dogmatic about it: I’m still finding the line between where it earns its cost and where it’s overkill.
These days a large share of my implementation code is written by AI agents, mostly Codex. My attention goes to the parts that decide whether software is any good: understanding the problem, choosing the architecture, drawing the boundaries, and holding the result to the same reviews, tests, types, and maintainability I expect across the codebase. The tools keep getting better, and I want to keep getting better at directing and checking them.
