Redesigning Card Management at Scale
Led the overhaul of İşCep's Cards dashboard — unifying debit, credit, prepaid, and digital cards into one modular experience inside Turkey's most-used banking app.
Key contributions: leading and executing MVP designs, facilitating discovery workshops, research, testing.
Horizontally scrollable cards displayed different currencies under the same physical card. Users perceived each currency as a separate card, adding confusion and cognitive load when checking balances.
Tabs organize all card types in one place. Users switch between credit, debit, and digital cards, and select a specific card from a dropdown — all within a single summary page.
- Reduce user confusion caused by fragmented card views
- Lower cognitive load when managing multiple card types and currencies
- Unify all cards into a single, clear structure
- Enable faster, more intuitive card management
- Collected customer feedback and identified key bottlenecks in the existing card experience
- Analyzed user needs alongside comparable solutions in the market to inform the redesign direction
- Iterated on the design to better align with user expectations and industry patterns
- Conducted moderated usability testing with 12 users and unmoderated testing with 88 users to validate the new structure
- Refined the design based on findings, focusing on debt-payment visibility and card selection via dropdowns
- Dashboard-first navigation adopted — users primarily accessed card features directly from the dashboard instead of the menu.
- Reduced navigation friction — users completed card-related tasks with fewer steps and less reliance on deep menu paths.
- Improved clarity in card management — behavioral data confirmed users could more easily switch between credit, debit, and digital cards.
Single dashboard
Users navigate between card types directly from the dashboard, while the menu is retained to support existing habits.
Unified currency
Instead of separate cards per currency, all currencies consolidate into one card summary — accessible from the dashboard or via tabs.
Pay multiple cards
Users pay the debt on multiple cards in one flow, removing the need for separate payment journeys per card.
Beyond the core dashboard, the redesign extended to the surrounding system: card selection, empty states, filtering, and settings.
Establish a shared mental model early
Designing across multiple card business units requires establishing a shared mental model early to keep teams aligned.
Clear principles matter more with more stakeholders
Working with five different business units highlighted the importance of clear principles to guide decisions when priorities conflicted.
Alignment comes from visible trade-offs, not consensus
Alignment doesn't come from consensus alone — it comes from making trade-offs visible and grounding decisions in user evidence.
Ownership and documentation preserve consistency
Clear ownership and documentation helped maintain consistency across interconnected card experiences.