I will fix flutter app bugs crashes firebase and build errors

4.9
4.9

Pakistan

I speak English

417 orders completed

Gig Summary

Software Engineer

I’m Shahroz Khalid, a Software Engineer with 10+ years of professional experience in building high-quality digital products. I specialize in mobile app development (Android & iOS) using Flutter, full...

Top Rated

Top Rated sellers are individually selected by Fiverr after meeting specific benchmarks for quality and service.

About this Gig

Flutter Bug Fixing | Crashes, Firebase & Build Errors

Is your Flutter app crashing, failing to build, or not working as expected?

I'm Shahroz, Software Engineer and Founder at Infinite Market Fusion, with 10+ years of experience in Flutter, Firebase, Android, and iOS.

I fix issues in existing Flutter apps, from UI bugs and broken logic to Firebase, APIs, Android builds, iOS builds, and integrations.

Issues I Can Fix:

  • Flutter Bugs, Errors & App Crashes
  • Firebase Auth & Firestore Issues
  • API Integration & Data Errors
  • Android Gradle & Build Errors
  • iOS Xcode & CocoaPods Issues
  • Push Notifications / FCM
  • UI, Layout & Responsive Issues
  • Login & Authentication Problems
  • Google Maps & Location Issues
  • Stripe, PayPal & RevenueCat

Why Work With Me:

  • 10+ Years' Experience: Senior technical expertise.
  • Root-Cause Fixes: Reliable solutions, not patches.
  • Founder-Led Support: Direct technical communication.
  • Flutter & Firebase Expertise: Android and iOS included.
  • Clean Engineering: Maintainable fixes with testing.

Please message me before ordering with screenshots, error logs, or a short explanation so I can review the issue and recommend your package.

Flutter app giving you trouble? Let's fix it properly.

Platform:

Cross-platforms

App type:

Hybrid

Frameworks:

Flutter

•

Node.js

Purpose:

Chat

•

Social networking

•

Entertainment

•

Health & fitness

Expertise:

Performance

•

Security

•

Design

•

Data storage

•

Firebase

Programming language:

Dart

•

Java

•

Swift

•

Other

Tools:

Android Studio

•

Xcode

•

Supabase

My Portfolio

Other Mobile App Maintenance Services I Offer

Reviews

13 reviews for this Gig
4.9

(13)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    4.8
Sort By
Most relevant
  • B
    image-docs

    bwardgoogle

    US

    United States

    Ongoing collaboration
    5

    I have hired Shahroz for about 9 different orders and keep coming back to him. He is affordable and does quality work. Would hire again...

    $100-$200

    Price

    2 weeks

    Duration

    Helpful?
    Yes
    No
  • B
    image-docs

    bwardgoogle

    US

    United States

    Ongoing collaboration
    4.7

    Shahroz is very conscientious and aims to please the client with his work. The fact that I hired him for a total of 8 orders is evidence that he does good work.

    $100-$200

    Price

    6 days

    Duration

    Worksample image
    Helpful?
    Yes
    No
  • F

    fefres

    ES

    Spain

    5

    es un gran profesional. no he conocido ninguno como el, se esfuerza en los detalles y en corregir todo lo más rápidamente posible, gran diseño y funcionalidad, seguiré trabajando con el en futuros proyectos. altamente recomendable

    $400-$600

    Price

    4 weeks

    Duration

    Helpful?
    Yes
    No
  • E
    image-docs

    elchin7765

    AZ

    Azerbaijan

    Ongoing collaboration
    5

    Highly recommended

    $50-$100

    Price

    11 days

    Duration

    Helpful?
    Yes
    No
  • A
    image-docs

    abtinmoradi

    TR

    Turkey

    Ongoing collaboration
    5

    Shahroz Mirza did an EXCELLENT job with my mobile app maintenance. His work was bug-free and came with thorough documentation. He was timely, fluent in communication, and highly cooperative throughout the project. 👍

    $50-$100

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
Reviews

13 reviews for this Gig
4.9

(13)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    4.8
Sort By
Most relevant
  • B
    image-docs

    bwardgoogle

    US

    United States

    Ongoing collaboration
    5

    I have hired Shahroz for about 9 different orders and keep coming back to him. He is affordable and does quality work. Would hire again...

    $100-$200

    Price

    2 weeks

    Duration

    Helpful?
    Yes
    No
  • B
    image-docs

    bwardgoogle

    US

    United States

    Ongoing collaboration
    4.7

    Shahroz is very conscientious and aims to please the client with his work. The fact that I hired him for a total of 8 orders is evidence that he does good work.

    $100-$200

    Price

    6 days

    Duration

    Worksample image
    Helpful?
    Yes
    No
  • F

    fefres

    ES

    Spain

    5

    es un gran profesional. no he conocido ninguno como el, se esfuerza en los detalles y en corregir todo lo más rápidamente posible, gran diseño y funcionalidad, seguiré trabajando con el en futuros proyectos. altamente recomendable

    $400-$600

    Price

    4 weeks

    Duration

    Helpful?
    Yes
    No
  • E
    image-docs

    elchin7765

    AZ

    Azerbaijan

    Ongoing collaboration
    5

    Highly recommended

    $50-$100

    Price

    11 days

    Duration

    Helpful?
    Yes
    No
  • A
    image-docs

    abtinmoradi

    TR

    Turkey

    Ongoing collaboration
    5

    Shahroz Mirza did an EXCELLENT job with my mobile app maintenance. His work was bug-free and came with thorough documentation. He was timely, fluent in communication, and highly cooperative throughout the project. 👍

    $50-$100

    Price

    1 day

    Duration

    Helpful?
    Yes
    No