Bankinter
Bankinter
Bankinter
Bankinter
Bankinter
UX / UI
UX / UI
Creation of the new application for individuals for Bankinter, one of the main banks in the Spanish financial system.
Creation of the new application for individuals for Bankinter, one of the main banks in the Spanish financial system.
Creation of the new application for individuals for Bankinter, one of the main banks in the Spanish financial system.
UX / UI
Hey, I'm Daniel.
Digital Product Designer based in Madrid, working worldwide.
Leadership
Iniatitive
A personal initiative
From silos to synergy. Building a stronger dev-design team. Optimizing workflows to boost product quality and reduce QA time by 60%.
My Rol: Lead Behavioral Desinger + Teammate
KPI Improved with Behavioral Design

Quick intro
Situation
The developed products had significantly lower quality than the design proposals. In many cases, design guidelines were ignored, leading to several issues:
Frustration
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The design team felt their work was wasted, causing demotivation and a lack of recognition.
Burnout
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Designers spent long hours on QA, identifying and documenting changes—most of which were never implemented.
Economic Impact
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Excessive QA hours led to high opportunity costs and a direct financial impact on development.
Starting Point
To bridge the gap
I organized internal workshops between development and design teams to identify the root of the problem. We uncovered many insights, but these three stood out the most:
Status quo
Developers had never collaborated directly with designers within the company; they only worked with the product team.
Technical gaps
They struggled to understand Figma files, causing errors.
Time perception
They saw design collaboration as a slowdown.

Teamwork in action
To improve collaboration, I organized Figma training sessions for developers. We worked together to define the best way to structure design files, making them clearer and easier to implement. Together, we defined the best way to structure design files, making them clearer and easier to implement.
These sessions bridged the technical gap, reducing misunderstandings and development errors.
🧠 Behavioral tip
The IKEA Effect – People value what they help create. By involving developers in the process, adoption was smoother, and the workflow improved naturally.
Small Budget, big Impact
I secured a small budget to organize a team lunch and a teambuilding activity, helping us connect beyond work.
🧠 Behavioral tip
Our strongest motivation is the group, so I focused on strengthening that bond.
Later, I secured a second budget to create custom pins and t-shirts (like the ones in the image) with each designer’s name. We proudly wore them in the office.
🧠 Behavioral tip
Reciprocity. Humans naturally reciprocate—when we receive, we feel the need to give back. In fact, the developers later suggested making some for us in return.

Improving communication with framing
To enhance collaboration, I designed a simple yet effective meeting agenda using behavioral framing to shift the perception of meetings from a time drain to a productivity boost.
🧠 Behavioral tip
People are more likely to engage in activities when they perceive personal benefit. By emphasizing how these syncs reduced rework and saved their own time, we turned meetings into a positive habit instead of a burden.

This was just one of the strategies we applied—until these meetings became a positive habit, improving alignment with minimal disruptions.
Key results
Achievements
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Stronger team bonds
Better relationships, better mood.
—
Less frustration
Designers felt valued, devs avoided last-minute fixes.
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Smarter meetings
Quick syncs saved time instead of wasting it.
—
Better handoffs
Design files became clearer, reducing errors and confusion.
60%
Reduction in QA time, minimizing opportunity costs and financial impact.