I will debug and fix your flutterflow app and backend issues, debug your ai app

D
dart_xander
D
dart_xander
Xander
debug and fix your flutterflow app and backend issues, debug your ai app
Full Screen
debug and fix your flutterflow app and backend issues, debug your ai app
Full Screen
Full Screen
debug and fix your flutterflow app and backend issues, debug your ai appdebug and fix your flutterflow app and backend issues, debug your ai appdebug and fix your flutterflow app and backend issues, debug your ai app

About this gig

Your app opens, but a screen is blank, grey, a query fails, authentication behaves unexpectedly, or an API response never reaches the UI?


I investigate and fix clearly described issues in existing FlutterFlow apps and their connected backend workflows.


Common areas include:

Firestore queries and data binding

Authentication and access-rule issues

API calls, JSON parsing, and webhooks

Navigation, state, and conditional UI

Broken actions, forms, and user journeys

Loading, empty, and error-state handling


I first reproduce the issue, identify the likely cause, and agree on the fix. If the problem requires a larger refactor, a platform/vendor change, or work outside the selected package, I'll explain the findings and propose a separate scope before proceeding.


Packages cover the stated investigation/fix allowance, not unlimited debugging. Please share the error, steps to reproduce it, and the relevant screen or workflow before ordering.


  • Programming language

    • Dart

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Security
    • Operating systems
    • Design

  • Frontend framework

    • AngularJS
    • Flutter
    • Next.js

  • Backend framework

    • NestJS
    • Next.js
    • Supabase
    • Firebase
    • Other

Get to know Xander

Xander

Flutterflow Mobile App Developer, AI Agent, AI MVP expert

  • FromNigeria
  • Member sinceOct 2026

  • Languages

    English, Spanish, German, Italian
Built an app with AI, but it still doesn't work the way you envisioned? Maybe the screens look great, but the backend, API integrations, authentication or user flows aren't working as expected. Or perhaps you have an idea and need someone who can turn it into a functional mobile product That's where I come in. I build with FlutterFlow, Figma, Firebase, Supabase, and Xano, integrating APIs, AI services, webhooks, and automations to bring your product together. I also debug existing apps and help agencies deliver features without adding unnecessary complexity. Working products, beyond demos.

My Portfolio