AGENCY
ZGRZ Agency

Casino platform frontend modernization

Frontend redesign and rebuild based on the previous platform version, improving load times on key pages by 30–40%.

 

B2C
iGaming
Custom Development
Frontend
Performance

About the Project

Frontend rebuild for a casino platform, focused on speed, stability, and predictable user flows. The platform's users are players who need fast section-to-section navigation, a clear interface, and stable pages. The focus was on assembling a complete frontend for the typical casino flows and establishing a scalable frontend foundation for ongoing changes after launch.

 

About Customer

We worked with the product manager and the lead responsible for audience acquisition. They already had the launch calendar and marketing materials lined up for the new visual direction. They came in needing the site modernized on a tight schedule, without breaking behavior for players who were used to the previous version. What they needed was a team that could deliver quickly on the frontend and preserve the core interaction patterns of the platform.

 

Tight launch deadline 

 

The frontend had to be designed, built, assembled, and shipped on a tight schedule. 

 

New UI 

 

Fully new design, layout, and components, while preserving the logic and visual cues that returning players already knew. 

 

Stable and predictable frontend behavior

 

Stable interface behavior and accurate implementation of the sections and patterns standard for a casino product. 

 

Speed and maintainability in parallel

 

Balance speed of delivery with long-term maintainability after launch.

 

Proposed Solution

We built the frontend as a separate, controllable product layer on a modern stack, so there is a base for future iterations. We also got priorities aligned upfront — predictable release, stable page behavior, and readable UI states.

 

Frontend architecture 

 

We built on Next.js with a split into pages and modular UI components. We managed state and interaction across the interface through Redux, to keep control over the logic and simplify maintenance.

 

Design and references 

 

We developed the new layout and components from the provided references. The interface feels modern but still familiar to returning users.

 

UI build 

 

We built the UI to cover core casino flows, with consistency of screen behavior and states tracked throughout the build.

 

Fast release process

 

We optimized the workflow with a clear task sequence, fast visual and functional sign-off with the client, and early checks on the critical scenarios.

 

Critical scenarios 

 

We tested every core user flow before release and verified rendering and navigation stability. The key pages had to behave without visible glitches under real usage.

 

At the start we aligned with the client on two things: launch goals and timeline. We defined the must-have scope for the first release. We agreed the design would be new, but anchored on the previous site. The working approach: fast progress with regular check-ins so we'd land with minimal gaps.

 

React.js
Next.js
TypeScript
Vercel

Results

After launch, the client had a scalable frontend foundation ready for continued growth. The product went live on schedule, meeting the agreed release timeline.

 

+30–40% faster

load on key pages

−0.5 pp 

sessions with bugs in the first 5 days after release

−20–25% 

support requests thanks to improved UX

2–3 hours

to add a new custom block — down from 6–8 hours

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Andrii Trubai

Andrii Trubai

CEO | Head of WebDev department

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