Personio

At Personio, I owned mobile design for the native iOS and Android apps, shaping the experience from the ground up and contributing to the company's broader product and brand overhaul. Working closely with engineering, we pushed the bar on interaction and design craft across the platform.

I rebuilt the mobile apps from the ground up natively, establishing mobile as a reliable companion for everyday HR tasks, which helped adoption grow from ~40K to ~200K MAU and reduced mobile-related deal loss from over 8% to 0.2%.

Time tracking was one of Personio's core mobile workflows, with requirements varying widely across customers, from basic clock-in use cases to strict compliance, location tracking, and policy-driven constraints for specific industries and regions.

The challenge was to design an experience that could scale across these realities without becoming complex or brittle. I focused on making time tracking effortless to use, trustworthy, and compliance by design.

As a result, mobile time tracking adoption and engagement grew fivefold. Today, 32.4% of time-tracking users log hours via mobile, an increase of 18% year over year.

I pushed the bar on visual and technical craft, using code to shape motion, material, and interaction patterns that elevated utilitarian workflows beyond pure function.