Postbank Branch Finder
Product Design, Interaction Design, Service Discovery
2024
Lead Designer
Project info
Scope
Designed and launched Branch Finder, a mobile-first feature enabling users to locate retail partners (e.g., Rossmann, Rewe, Penny) that support cash deposits/withdrawals via Bargeld Code, as well as Postbank and Deutsche Bank branches and self-service locations.
Process
I focused on building a responsive and intuitive location discovery experience optimized for mobile use.
Created dynamic prototypes to test scroll, tap, and filter interactions in real-world contexts
Mapped key flows: location permission onboarding, filtering by transaction type (deposit/withdraw), and real-time branch availability
Validated concepts through remote usability tests and live data simulation
Collaborated closely with backend and map data teams to ensure accuracy and fast rendering under mobile network constraints
Solution
Shipped a highly performant, touch-optimised interface that increased visibility of partner locations and reduced ATM reliance.
+24% uplift in Bargeld Code usage after launch
90% of users found what they were looking for within the first 3 interactions
Became the gateway to other in-app cash services