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MJ
Muhammed Jafseel MSenior Flutter Developer
Immediate Triage• Fast ApprovalFixed-price per scoped defect or rapid hourly block (10-20 hrs)

Flutter Bug Fixing & Release-Blocking Issues

Rapid diagnosis and surgical fixes for elusive UI glitches, state desync, platform crashes (ANRs/iOS), and store release-blocking build errors.

Scope & Technical Approach

Unresolved bugs, app freezes (ANRs), state desyncs, and platform build failures can stall launches and frustrate users. Backed by 8+ years of mobile engineering (4+ years Flutter, 4+ native Android), I provide rapid, surgical triage to diagnose root causes and deliver regression-free fixes. Whether dealing with complex Riverpod/Bloc stream races, memory leaks in image caching, or stubborn CocoaPods and Gradle 8 incompatibilities, I trace down the underlying issue and document the solution clearly.

Target Scenarios & Client Profile

Teams with an existing Flutter app encountering broken screens, ANRs (app freezes), unexpected state mutations, or iOS/Android build failures stalling releases.

Common Engineering Challenges Solved

Representative problems frequently addressed in this service category:

Application Not Responding (ANR) and main-thread UI stutter on Android devices
Memory leaks, unbounded list rebuilds, and un-disposed StreamControllers
State desynchronization across nested navigators and dynamic tab switches
CocoaPods dependency conflicts and Xcode 15/16 signing and arch build failures
Gradle 8+, Java 17, and Kotlin Gradle Plugin (KGP) migration build breakages
Store rejection remediation for Google Play and Apple App Store guideline violations
Guaranteed Outcomes

Included Deliverables

  • Defect reproduction and step-by-step root-cause diagnostic report
  • Surgical code repair addressing root cause without introducing regressions
  • Platform build fix (Gradle, CocoaPods, Xcode signing issues within Flutter scope)
  • Targeted unit or integration test for the affected logic where viable
  • Clear explanation and pull request documentation for team handoff

Client Prerequisites

To start work immediately without ramp-up delay, have the following ready:

  • •Access to repository or minimal reproducible test branch
  • •Clear description of bug, steps to reproduce, device model, and OS version
  • •Crash logs or stack traces if available from Crashlytics/Sentry

Primary Tools & Libraries

Flutter DevToolsDart AnalyzerRiverpodBlocGetXProviderGradleCocoaPodsAndroid StudioXcode
Execution Workflow

How We Work Together

A disciplined 4-step framework from initial intake to production verification.

01

Defect Reproduction & Log Analysis

Review your bug report, Crashlytics stack traces, and environment configurations. Isolate the reproduction steps in a controlled test branch.

02

Deep Diagnostic Root-Cause Analysis

Profile using Flutter DevTools (CPU profiler, memory snapshots, repaint rainbows) or native Android/iOS debugging tools to identify the fundamental cause.

03

Surgical Code Repair

Implement a minimal-surface, idiomatic Dart/Flutter fix that solves the issue without altering surrounding business logic or triggering regressions.

04

Handover & Clean Pull Request

Deliver a clean PR with explanation, verified device test evidence, and unit tests covering the failure condition to ensure long-term stability.

Verified Proof of Work

Real production deliverables demonstrating the technical capabilities used in this service:

Chat & Realtime

Meerkat AI Chat Application

Cross-platform real-time chat application with low-latency messaging, offline SQLite caching, and multi-platform deployment across Android, iOS, and macOS.

Fitness

CoreSyn Fitness App

Active lifestyle fitness application featuring a comprehensive diet, nutrition, and meal planning module engineered with Clean Architecture.

Native Android

Foundational Native Android E-Commerce & Systems

4+ years of native Android engineering (Kotlin, Java, MVVM, Room, Retrofit) powering commercial shopping and offer applications.

MVVM / LiveDataRead Case Study →
Clear Answers

Frequently Asked Questions

Direct answers to common questions about scope, turnaround, and collaboration.

How fast can you resolve an emergency release-blocking build error?

Most isolated build blockers (Gradle sync failures, CocoaPods podspec errors, Android SDK 34/35 manifest requirements, Xcode signing) are resolved within 24 to 48 hours once repository access is granted.

Can you fix bugs that involve native Android or iOS platform code?

Yes. Having 4+ years of dedicated native Android engineering (Java, Kotlin, Android NDK, Room, Gradle) alongside Flutter, I am comfortable investigating platform channels and native platform libraries.

Do you provide tests with bug fixes?

Whenever the architecture permits unit or widget testing, I write regression tests covering the defect so your CI pipeline catches future occurrences automatically.

Direct Availability24h Response

Ready to Begin with Flutter Bug Fixing & Release-Blocking Issues?

Share your repository, issue description, or upcoming sprint requirements. I will review the specifications personally and propose an immediate next step.