Fiserv

UI/UX – Payment Portal / Design System

Brand: Fiserv (formerly First Data) is a leading global fintech and payments company with solutions for banking, global commerce, merchant acquiring, payments, and point-of-sale
Brief: rebrand the payment portal from FirstData to Fiserv and refresh of the portal’s interface, enhancing UI/UX; create a comprehensive white-label design system; collaborate with international teams
Duration: May - Dec 2021
My role: UI/UX designer 
Team & Collaborators:
  Worked alongside Creative Director, PM, UI and UX designers; collaborated with Design and Development teams across various countries
Outcomes: We successfully redesigned the merchant portal, improving the overall UX. A key deliverable was the creation of a comprehensive design system, including detailed documentation, UI kits, and a Storybook for consistent implementation across teams.


Hero_1

Page templates

Page templates

Page templates

I worked across various aspects of the product including data visualization, merchant disputes, documents, settings, help, and much more - creating new components and page templates. The challenge was to create a consistent visual language with a clear hierarchy. Apart from the UI work, some UX improvements were required as well.

I worked across various aspects of the product including data visualization, merchant disputes, documents, settings, help, and much more - creating new components and page templates. The challenge was to create a consistent visual language with a clear hierarchy. Apart from the UI work, some UX improvements were required as well.

I worked across various aspects of the product including data visualization, merchant disputes, documents, settings, help, and much more - creating new components and page templates. The challenge was to create a consistent visual language with a clear hierarchy. Apart from the UI work, some UX improvements were required as well.

I worked across various aspects of the product including data visualization, merchant disputes, documents, settings, help, and much more - creating new components and page templates. The challenge was to create a consistent visual language with a clear hierarchy. Apart from the UI work, some UX improvements were required as well.

I worked across various aspects of the product including data visualization, merchant disputes, documents, settings, help, and much more - creating new components and page templates. The challenge was to create a consistent visual language with a clear hierarchy. Apart from the UI work, some UX improvements were required as well.

Dashboard_1
Mobile_1

Documents

Documents

Documents

Re-designed statements and invoice templates.

Re-designed statements and invoice templates.

Documents

Design system

Design system

Design system

Delivery of the Design System included creating components and documentation - UI Kits and Storybook. I collaborated with the front-end developers, providing them with details on how the components work, and behaved, reviewing them on Storybook. As a team, we established a Design System that could be scaled and easily updatable. All designs worked responsively and adhered to AA accessibility standards.

Delivery of the Design System included creating components and documentation - UI Kits and Storybook. I collaborated with the front-end developers, providing them with details on how the components work, and behaved, reviewing them on Storybook. As a team, we established a Design System that could be scaled and easily updatable. All designs worked responsively and adhered to AA accessibility standards.

Delivery of the Design System included creating components and documentation - UI Kits and Storybook. I collaborated with the front-end developers, providing them with details on how the components work, and behaved, reviewing them on Storybook. As a team, we established a Design System that could be scaled and easily updatable. All designs worked responsively and adhered to AA accessibility standards.

Delivery of the Design System included creating components and documentation - UI Kits and Storybook. I collaborated with the front-end developers, providing them with details on how the components work, and behaved, reviewing them on Storybook. As a team, we established a Design System that could be scaled and easily updatable. All designs worked responsively and adhered to AA accessibility standards.

Delivery of the Design System included creating components and documentation - UI Kits and Storybook. I collaborated with the front-end developers, providing them with details on how the components work, and behaved, reviewing them on Storybook. As a team, we established a Design System that could be scaled and easily updatable. All designs worked responsively and adhered to AA accessibility standards.

UI Kits_1

Let's talk! Connect with me on linkedin or email me.

Let's talk! Connect with me on linkedin or email me.

Let's talk! Connect with me on linkedin or email me.

Designed & Built by Tatyana Gushchenko © 2025

Designed & Built by Tatyana Gushchenko © 2025

Designed & Built by Tatyana Gushchenko © 2025