Elementex
LiveAn endless tower-defense game built around four elements — short, replayable sessions with transparent loot. Built solo with Flutter, live on Android & iOS.
Tech lead & builder.
I lead engineering by day and build AI-native apps and games on the side — from a calm-anxiety companion to a millisecond reaction game.
About
Engineering lead with 8+ years of Android experience across healthcare, automotive, retail and classifieds. I run engineering chapters and product teams — setting architectural direction, driving automation and process improvements, mentoring engineers, and shaping a strong technical culture.
I stay close to the platform, especially around architecture decisions and AI integration. Happiest where product, platform and people meet — and after hours I build complete products end to end, from design and code to backend and store launch.
Toolbox
Selected projects
A mix of live apps and works in progress — built solo, end to end.
An endless tower-defense game built around four elements — short, replayable sessions with transparent loot. Built solo with Flutter, live on Android & iOS.
An AI companion for calming anxiety in the moment — conversational support that meets you where you are. KMP + Compose, Firebase backend.
A minimalist reaction-timing game: wait for the signal, tap the instant it fires, chase your best to the millisecond. KMP across Android, iOS, Web & Desktop.
One demotivational truth, every day. Auto-generated daily poster art delivered through a clean, server-rendered web app. Next.js + Firebase.
A full website relaunch for a Munich veterinary practice — editorial design, fully responsive, with a Git-based CMS so the team edits every text, image and page themselves. Astro + TinaCMS, deployed on Cloudflare.
This very site — a static personal site built with Astro, self-hosted fonts and zero third-party calls, served from my own Hetzner VPS.
A penny-auction platform in the works — mobile app, web client and an admin dashboard on a single Kotlin Multiplatform codebase, backed by a Ktor + PostgreSQL + Redis server, self-hosted on a Hetzner VPS.
Work
Eight years building and leading Android teams in Munich — healthcare, automotive, retail and classifieds.
Education
Contact
Building something, hiring, or just want to compare notes? My inbox is open.
tassilo@posegga.eu