You will get Complex Flutter Project Refactoring - AI-Built Code, Legacy, Security Fixes
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Project details
Is your Flutter app struggling under the hood? I handle complex refactoring cases that need serious internal restructuring, not just cosmetic fixes:
AI-built & FlutterFlow apps: Code from Cursor, Copilot, or FlutterFlow often lacks architecture (everything in one widget, setState everywhere). I refactor it into a clean, maintainable codebase with proper state management (Riverpod/BLoC) while keeping features intact.
Legacy projects: Stuck on an old version or drowning in dependency conflicts? I upgrade old codebases to current stable Flutter step-by-step, resolving breaking changes—the kind of careful migration AI tools get wrong.
Performance issues: Janky scrolling or slow startup? I profile the app with Flutter DevTools, eliminate bottlenecks, and provide real before/after metrics.
Security audit & fixes: I check for and fix hardcoded API keys, unprotected endpoints, and insecure data storage. Critical for AI-built apps that leak secrets by default.
Every project starts with a detailed audit and a prioritized issue list, so you know exactly what needs fixing and the cost before committing.
AI-built & FlutterFlow apps: Code from Cursor, Copilot, or FlutterFlow often lacks architecture (everything in one widget, setState everywhere). I refactor it into a clean, maintainable codebase with proper state management (Riverpod/BLoC) while keeping features intact.
Legacy projects: Stuck on an old version or drowning in dependency conflicts? I upgrade old codebases to current stable Flutter step-by-step, resolving breaking changes—the kind of careful migration AI tools get wrong.
Performance issues: Janky scrolling or slow startup? I profile the app with Flutter DevTools, eliminate bottlenecks, and provide real before/after metrics.
Security audit & fixes: I check for and fix hardcoded API keys, unprotected endpoints, and insecure data storage. Critical for AI-built apps that leak secrets by default.
Every project starts with a detailed audit and a prioritized issue list, so you know exactly what needs fixing and the cost before committing.
Platform
Mobile WebApp Type
Hybrid AppDevelopment Technology
FlutterApp Purpose
Finance, Education, Kids, Maps & Navigation, Medical, Music, News, Restaurant, Shopping, TravelExpertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$700
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 days |
Number of Revisions | 3 | 3 | 3 |
App Store Upload | - | ||
Source Code |
Frequently asked questions
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MS
Matsvei S.
May 27, 2026
iOS Flutter Developer for Bugfix and New Features Development
Ivan is a highly skilled developer and a pleasure to work with. We collaborated over an extended period, and he consistently delivered great work. Beyond his strong Flutter expertise, he also handled backend tasks confidently, which made him incredibly versatile and saved us from juggling multiple contractors. Communication was smooth throughout, and he approached problems thoughtfully rather than just executing tickets.
Easily the best value-for-money developer I’ve found on the platform. Highly recommended - I wouldn’t hesitate to work with him again.
Easily the best value-for-money developer I’ve found on the platform. Highly recommended - I wouldn’t hesitate to work with him again.
MM
Mykola M.
Jun 8, 2025
Flutter Social Network app
MB
Mason B.
Apr 5, 2025
Stat Sniper Flutter Dev
AD
Aaron D.
Jun 14, 2024
Flutter dev to help with existing app
Ivan did a terrific job working on a flutter app. He required very little guidance and built an entire social feed for my app in roughly one week. I hope to work with Ivan again soon with other projects.
JB
Jeremi B.
May 28, 2023
Flutter App Redesign and Implement
Ivan is always helpful and knowledgeable. Will use again.
About Ivan
Flutter Developer | Custom Design
100%
Job Success
Kropyvnytskyy, Ukraine - 11:17 am local time
experience in 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 development .
Steps for completing your project
After purchasing the project, send requirements so Ivan can start the project.
Delivery time starts when Ivan receives requirements from you.
Ivan works on your project following the steps below.
Revisions may occur after the delivery date.
Audit Delivery & Action Plan
You receive a prioritized report detailing all found issues, security risks, and technical debt. We align on the exact scope of refactoring, performance optimization, and version upgrades before any code is changed.
Refactoring & Fixes Execution
I restructure the code into clean architecture (Riverpod/BLoC), upgrade dependencies, optimize rendering, and secure data storage. The app's layout, features, and user experience remain completely intact.