A Participation Bank2025🚧 Under Construction
From a feature-copied test app to a launch-ready banking app
Turning a feature-copied test app into a launch-ready mobile bank with clearer security flows and simpler transfers.
I'm Banu 
Kahvecioğlu
A product designer in Istanbul.
I used to design spaces. Now I design them with components.
Hover the room.Tap the room. The lamp really works.
LAKE2024
Turning unanswered alarms into a daily habit
Rule-based alarms cut alarm volume by 85%, and alarms that are easy to spot and answer raised LAKE’s response rate from 11.2% to 54.6%.
DOM Architecture2024
Building a brand and a living website for an architecture studio
Branding, a working responsive website and a motion language drawn from the logo, for a fictional architecture studio.
LAKE2023
Designing a clean onboarding for a condition monitoring platform
A guided setup and a visual Machine Editor that let customers build their own machines: about 7 minutes for a common machine, down from 24.
Downdog Yoga2022
Improved Personalization in a Yoga Application (opens in a new tab)
A UX research course project on why a yoga app's personalization did not feel personal, and what could change.
yemek.com2022
A Better Experience Before and After Cooking (opens in a new tab)
A course project following home cooks from choosing a recipe to coming back to it after the meal.
Beyond case studies
Smaller explorations, studies and screens from projects.
Every product has a story.
I shape how people live it.
I'm a product designer and currently the only UX designer at a participation bank getting ready to launch, where I'm shaping its mobile app. I started out in Interior Architecture at ITU and moved into UX through the Userspots UX school.
Who is it for, why would they stay, what is it worth to the business? I start with those questions, so my decisions hold up well beyond the design review.
I do my best work between teams. Analysts, developers, business units and leadership each hold a piece of the picture; I put it on one map everyone can read. And launch, for me, is where a product starts growing.
- User research
- Usability testing
- Flows & IA
- Prototyping
- UI design
- Design systems
- Developer hand-off
