// 01 Engineer
Build
things
that
compile.
I’m Jan Emmel — software engineer, co-founder of radical minds GmbH since 2011. Fully remote since 2017.
Software engineer
by trade.
I build scalable software for manufacturing, e-commerce and logistics companies — from large-scale production facilities and footwear & textile retailers to industrial automation.
My stack: Go and Spring Boot backends that don't fall over, Next.js frontends that don't make your eyes bleed, and Android apps built with Kotlin and Jetpack Compose. Clean Code isn't a book, it's a non-negotiable.
Years in Spring Boot & backend.
Go + Spring Boot
Clean architecture, manual dependency injection, tiny interfaces. No global state. Context propagation everywhere. Services that don't surprise you at 2 AM.
Next.js + TypeScript
App Router, Server Components, Tailwind CSS, shadcn/ui. Type-safe from API to component. Turbopack in dev.
Android / Kotlin
Jetpack Compose, Hilt, Room, Navigation. Modern Android that doesn't look like it was designed in 2014.
Infrastructure
PostgreSQL, Redis, Docker, Traefik, GitHub Actions. Deploy early, deploy often. No cowboy deployments.
Craftsmanship
Clean Code, TDD, DDD, Hexagonal Architecture. Tests aren't optional. Refactoring is maintenance, not tech debt.
Domains
Manufacturing & production facilities, footwear & textile retail (E-Commerce, Shopware), Industry 4.0, Logistics. 15 years of building things that actually get used.
02 Athlete //
Build
things
that
last.
Runner and long-distance hiker. Father of two. 3.000 km of New Zealand on foot. Next: Hannover, sub 3:00.
New Zealand, end to end. On foot.
In 2016 — before kids, before the point of no return — my wife and I quit our jobs, packed our bags, and walked the length of New Zealand. The Te Araroa Trail — 3.000 kilometers in 110 days. No shortcuts.
After that: Mexico, Guatemala, Costa Rica, Colombia, Canada, USA, Iceland. Eleven months. One rule: keep moving.
“Too far” stopped being an argument somewhere around day 40.
Hannover Marathon
Sub 3:00
11.04.2027 · 42.195 km · Target 4:15 / km
Currently in training — Garmin Forerunner 965.