I will debug dart flutter code, resolve build errors and fix bugs

H
hanzla_sajid00
H
hanzla_sajid00
Hanzla Sajid
5.0
5.0
debug dart flutter code, resolve build errors and fix bugs
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debug dart flutter code, resolve build errors and fix bugs
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About this gig

Stuck on a build error or facing unexpected crashes? Don't let bugs ruin your deployment!

As a Flutter & Dart Developer, I provide production-grade debugging, syntax fixing, and code optimization. From runtime exceptions to broken backend integrations, I deliver clean, refactored code with a guaranteed quick turnaround.

Services I Provide:

  • Build & Compilation Fixes: Resolving compiler blocks, syntax errors, unclosed brackets, and punctuation issues.
  • Runtime Errors & Logic: Fixing script crashes, type casting (_TypeError), and null safety exceptions.
  • Firebase Backend Issues: Resolving Firestore rules, Auth blocks, and database parsing failures.
  • UI & Layout Constraints: Eliminating viewport overflows (RenderFlex) with fluid, responsive sizing.
  • REST API & JSON: Correcting data-flow errors and dynamic map parsing in third-party API integrations.

️ Check my portfolio for case studies on code optimization, null-safety mapping, and responsive testing!

Why Choose Me?

  • Clean, linter-compliant code
  • Production-ready & fully tested
  • Fast turnaround & quick diagnostics
  • Transparent communication & documentation

Please message me with your error logs or screenshots before placing an order. Let's ma

  • Programming language

    • Dart

  • Expertise

    • Debugging
    • Performance
    • Security
    • Operating systems
    • Testing procedures

  • Frontend framework

    • Flutter

  • Backend framework

    • Other

Get to know Hanzla Sajid

Hanzla Sajid

Flutter and MERN Stack Developer

5.0(3)
  • FromPakistan
  • Member sinceJun 2026
  • Avg. response time1 hour
  • Last delivery1 month

  • Languages

    Urdu, English
We are Hanzla Sajid (Flutter Developer) and Babar (MERN Stack Developer), a two-person development team delivering high-performance, cross-platform mobile applications and full-stack web solutions. Together, we cover everything from Flutter applications with Firebase integration to complete MERN (MongoDB, Express, React, Node.js) web systems. Hanzla focuses on real-time applications, Firebase integration, and clean UI/UX design. Babar focuses on scalable web applications, REST APIs, and database-driven systems. We look forward to building something great together.
Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • A
    image-docs

    alambodlah

    GB

    United Kingdom

    5

    Hanzla delivered excellent work! Fixed all Flutter bugs quickly and efficiently. Clean code, great communication, and fast delivery. Highly recommended!

    $50

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • A
    image-docs

    alambodlah

    GB

    United Kingdom

    5

    Hanzla delivered excellent work! Fixed all Flutter bugs quickly and efficiently. Clean code, great communication, and fast delivery. Highly recommended!

    $50

    Price

    1 day

    Duration

    Helpful?
    Yes
    No

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