November 2024 - September 2025

DJAAYZ

Stabilization, Performance Optimization, and Successful Project Handover

A collaborative project focused on modernizing an existing Flutter-based product, improving performance across mobile and web, and delivering a clean technical handover.

DJAAYZ
November 2024 - September 2025

Project Overview

This project was executed in cooperation with a partner team, with our primary responsibility being to take over, stabilize, and modernize an existing codebase before handing it back in a production-ready state. The application had fallen behind in terms of framework version, performance, and maintainability.

Our role was to bring the product up to current standards while simultaneously extending its feature set to support future growth.

The Challenge

At the start of the engagement, the product faced several critical issues:

Severely outdated Flutter version
Performance bottlenecks on mobile devices
Large web bundle size and slow initial load times
Accumulated bugs and technical debt
New business requirements not supported by the existing architecture

All improvements needed to be delivered without disrupting ongoing operations and with a clear handover path for the original team.

Our Solution

We performed a structured modernization and optimization process, focusing on stability, performance, and long-term maintainability.

Key initiatives included upgrading Flutter to the latest stable version, refactoring performance-critical parts of the mobile app, optimizing the web build to reduce bundle size and improve loading speed, and cleaning up legacy code and resolving high-impact bugs.

In parallel, we developed several new core features to support product growth and user engagement.

Key Contributions

Flutter version upgrade and dependency alignment
Mobile performance optimization
Web bundle size reduction and load-time optimization
Social account connection and media synchronization
New booking system implementation
In-app purchase integration
Bug fixing and stability improvements
Documentation and technical handover support

Results & Impact

Significantly improved mobile responsiveness and stability
Faster web loading times and better runtime performance
Reduced technical debt and improved code maintainability
Expanded feature set aligned with business needs
Smooth project handover to the partner team

Why It Matters

This project demonstrates our ability to:

Step into complex, legacy codebases
Modernize applications without full rewrites
Balance technical debt reduction with feature delivery
Collaborate effectively with partner teams
Deliver clean, well-documented handovers

Technology Stack

Flutter Loopback MongoDB

Interested in working together?