I build mobile products people actually enjoy using.
I am Lukas Werner, a frontend-heavy product engineer focusing on Expo and React Native, with backend and infrastructure range to carry work end to end when needed.
I work in the overlap of product, engineering, and UX: not only how to build a feature, but whether it should exist, how it should feel, and what keeps it healthy after launch.
Clear support for products that need stronger frontend and sharper product thinking.
Turn a rough idea into a usable product with clear scope, solid frontend foundations, and pragmatic delivery decisions.
Take responsibility for the product-facing layer, especially in Expo + React Native projects.
Improve feature clarity, MVP scope, interaction details, and implementation decisions so the product feels more coherent.
A quick route into proof, not just promises
If you want to understand how I think and build, these are the two best next stops.
DAIT: meeting people beyond the swipe
A social matching app for the Spanish market. I was co-founder and sole app engineer, shaping the mobile product end to end in React Native and Expo.
React Native / Expo · Product thinking · Interaction craft
The broader picture of how I work
A structured view of my experience across consulting, startup work, product engineering, and frontend architecture.
Frontend depth · UX-minded delivery · Backend support
A slightly unusual route into product-minded engineering
The path was not linear, but the recurring interest has been consistent: understand systems well enough to make them useful, usable, and worth caring about.
Cydia tweaks
I started by building and selling iPhone tweaks, which made product behavior and user delight feel concrete very early.
Bee-hive analytics
At Wolf-Waagen I worked on data-heavy software for analyzing bee hives while the company scaled toward market leadership.
Fluid simulations
My computer science research years shaped how I reason about systems, tradeoffs, and technical rigor.
Product engineering
From corporate products to public-sector consulting, the recurring interest stayed the same: making systems useful, usable, and worth caring about.
Recent notes
A selection of recent writing on frontend engineering, Expo workflows, and product thinking.
If you need frontend depth with product judgment, I would be glad to talk.
Especially for mobile and web products that care about interaction quality, clear thinking, and pragmatic delivery from idea to implementation.