Matthias Hofmann

Full Stack Engineer

I'm a software engineer from Germany, now living in Fukuoka, Japan. I love building things that blend design, technology, and a bit of curiosity. I aim to make products that not only work well, but feel good to use.

Right now, I'm Vice-CTO and team lead at Kotozna, where I work on tools that connect people across languages and cultures. My experience includes front-end, backend, and mobile development. However, what excites me the most is transforming ideas into meaningful digital experiences.

I hold a Master of Science in Business Information Systems and have spent the past nine years exploring how code, design, and AI can come together to make technology a little more human.

When I'm not building, I often experiment with new frameworks, side projects, or ideas that challenge the limits of what's possible.

If that sounds interesting to you, let’s connect.

The Journey

Sep 2023 - Present

Lead Engineer | Vice-CTO

Kotozna

Oct 2021 - Sep 2023

Frontend Team Lead | Vice-CTO

Kotozna

Feb 2021 - Oct 2021

Lead Software Engineer

Kotozna

Jun 2018 - Feb 2021

Software Engineer

Kotozna

Nov 2017 - Jun 2018

Software Engineer

Caracri-Works

Sep 2017 - Jun 2018

Co-founder, Software Engineer & Designer

Side project (acquired by Kotozna in 2018)

Jan 2017 - Oct 2017

iOS & Machine Learning Engineer

Renzo (startup funding ended in 2017)

Aug 2015 - Dec 2016

iOS Engineer

Freelance Work

The Stack

Frontend

TypeScript JavaScript Vue.js Astro Three.js WebGL HTML CSS Sass

Backend

Node.js Express.js uWebSockets Python FastAPI Flask Go Swift Vapor (Swift)

Mobile

Swift UIKit SwiftUI Dart Flutter

Infrastructure

AWS Docker Terraform GitHub Actions Bitbucket Pipelines Bitrise

Languages

English (Fluent) German (Native) Japanese (Conversational)