Software · Engineering

Three years building.
And still learning.

An apprenticeship, three years as a software developer, media informatics from 2026. Moving into a degree is a decision, not a pause — what came out of those years is on this page.

At a glance
Focus
Backend — Java & Spring Boot
Experience
3 years developing, apprenticeship before that
Currently
Media informatics degree from 2026
Based in
Hamburg — open to a conversation
Toolbox

What I can do.

Four areas, honestly sorted — nothing is on this list that I could not pull apart in a conversation.

Backend
JavaSpring BootRESTKafka
Frontend
TypeScriptSvelte 5SvelteKitTailwind
Data
PostgreSQLRedisSQL
Operations
DockerLinuxGitCI/CD
Path

Where this comes from.

Apprenticeship, job, degree — in the order it happened.

  1. since 2026

    Media Informatics

    [add university]

    Back to theory after three years of practice — deliberately, not as a detour.

    planned
  2. 2023–2026

    Software Developer

    [add company]

    Backend development with Java and Spring Boot — features from requirement to production, plus bug fixing, reviews and the daily work inside existing code.

    JavaSpring BootPostgreSQLDocker
  3. 2020–2023

    Apprenticeship · [add job title]

    [add training company]

    Three years of fundamentals: learning to program, understanding databases, and seeing how a team actually works.

Workshop

Things nobody ordered.

Built to try something out. Some run, some don't, a few will never be finished — that's the point.

App 50%

WOHIN

Vibe-oriented spot discovery platform. Search and filter by activities instead of stars.

„Backend and CMS are ready, but switching from Expo to Flutter resets app development back to square one.“

FlutterHonoAstroSanity
Slow progress
Quiz App 92%

Welche Partei?

Modern political profiling and playful this-or-that tournament as a Wahl-O-Mat alternative.

„Technically almost finished, but fine-tuning political party weightings feels like real coalition talks.“

Svelte 5SvelteKitTailwindCSSD3.jsPlaywright
Slow progress
Party Game 0%

Sofa-Showdown

Jackbox-style party game for local multiplayer nights. Your own smartphone becomes the controller.

„Right in the concept phase with a close friend.“

Concept phase / chaotic
In the Toolbox
Java Spring PostgreSQL Docker Svelte Tailwind CSS TypeScript Astro Cloudflare Linux Git Nginx
No Forms

Just write to me.

Whether it's an exciting backend project, a street-photography walk through Hamburg, or just talking shop about Java vs. Kotlin.

tostu@posteo.de
Send Email →
deen