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I have a production Flutter web app that needs a solid pass of debugging and refinement. Three categories of problems are currently blocking smooth usage: • UI/UX issues – mis-aligned elements, inconsistent theming and interactions that don’t feel native in the browser. • Performance issues – noticeable jank when the first dashboard loads, slow transitions between routes and heavy CPU usage on form pages. • Functional errors – actions occasionally fail, state is sometimes lost after navigation and a few buttons do nothing on click. The pain points show up most in the login & registration flow, the main navigation/menu drawer, several forms and, overall, the app’s general runtime performance. What I need from you 1. Diagnose the root causes across those areas. 2. Implement clean, test-covered fixes. 3. Hand back a stable web build plus concise release notes summarising changes. Tech notes • The codebase is 100 % Flutter with null-safety enabled and uses Provider for state management. • Source is in a private Git repo; you’ll work on a feature branch and open a pull request when ready. • I will run Lighthouse and simple integration tests to confirm that page load, FPS and memory have improved and that the critical flows work end-to-end. If you have recent experience squeezing maximum performance out of Flutter Web, tightening up UI interactions and squashing navigation-related bugs, let’s get this shipped.
Project ID: 40364520
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98 freelancers are bidding on average $13 USD/hour for this job

⭕⭕FLUTTER WEB APP DEVELOPER⭕⭕ Hi there, ✔️I see you need an experienced Flutter developer to debug, optimize, and stabilize your production web app I’d love to help you eliminate performance bottlenecks, fix functional issues, and refine the UI/UX for a smooth browser experience. ♾️ My approach: I start with profiling (DevTools, Lighthouse) to identify root causes, then optimize rendering, fix state leaks, and refactor navigation followed by structured testing and a clean PR with detailed release notes. Ready to jump into your repo, work on a feature branch, and deliver a stable, high-performance build. Let’s connect and get this shipped. Thank you.
$10 USD in 40 days
10.0
10.0

Hi, I can debug and refine your Flutter web app to resolve UI inconsistencies, performance bottlenecks, and functional issues, delivering a stable and smooth user experience. I’ll: Diagnose root causes (rendering, state management, widget rebuilds, navigation flow) Fix UI/UX issues (alignment, theming consistency, responsive behavior) Optimize performance (reduce jank, improve initial load, optimize rebuilds & transitions) Resolve functional bugs (state loss, broken actions, navigation issues) Add targeted tests for critical flows (login, forms, navigation) I have hands-on experience improving Flutter Web performance (Provider optimization, lazy loading, route handling, minimizing rebuilds) and ensuring stable production builds. We can communicate more on this matter. Kindly accept the offer so we can discuss further. Thank you Jennifer
$12 USD in 40 days
8.9
8.9

Hello, I will diagnose and fix the UI misalignments, navigation state loss, and dashboard jank — delivering a stable build with test-covered fixes and release notes via PR. For the dashboard jank, I will profile using DevTools to check for unnecessary widget rebuilds in your Provider setup — wrapping heavy subtrees with `Selector` instead of broad `Consumer` widgets often cuts first-load frame time significantly on Flutter Web. Questions: 1) Which Provider pattern are you using — `ChangeNotifier` or `StateNotifier`? 2) Are the non-responsive buttons tied to specific form pages or scattered throughout? Looking forward to potentially working together. Thanks, Kamran
$15 USD in 40 days
8.4
8.4

Hello, Flutter web jank and state issues usually come from heavy UI redraws and incorrect state handling. I’ll use Flutter DevTools to identify expensive repaints in your dashboard and forms, implementing RepaintBoundary and optimizing the CanvasKit renderer to boost your Lighthouse scores. To resolve the functional errors, I’ll audit your Provider implementation to fix disposal issues causing state loss during navigation and ensure the login flow is bulletproof with unit-tested logic. I will also standardize your ThemeData to ensure the UI feels like a native web experience rather than an emulated one. You’ll get tested fixes, a stable build, and clear release notes via a clean PR. Best, Niral
$12 USD in 40 days
8.3
8.3

Hello! I reviewed your Flutter web requirements, and this is exactly the type of refinement/debugging work I handle regularly. I have strong experience optimizing production Flutter web apps, including UI polish, Provider/state issues, navigation bugs, and performance tuning for a smoother browser experience. Approach: Audit root causes behind UI inconsistencies, broken actions, and state loss Profile performance (initial load, route transitions, CPU-heavy forms) Refactor inefficient widgets/state flows and optimize rendering Fix navigation/login/menu/form issues cleanly with test coverage Deliver stable build + concise release notes for your PR review I’m comfortable working in private Git workflows with feature branches and PRs. My focus is not just patching symptoms but fixing underlying architectural issues so the app stays stable long-term. Ready to jump into the repo and help get this production-ready. Best regards, Jasmin
$12 USD in 40 days
8.1
8.1

Hi there, I’ve reviewed your Flutter web app’s pain points, UI misalignments, janky first-load performance, and navigation/state quirks in login/registration and the drawer. I’m confident I can diagnose root causes quickly and implement clean, test-covered fixes that stick across environments. What I’ll do: run a focused audit with Flutter DevTools and Lighthouse to pinpoint render/build bottlenecks, route transitions, and provider-driven state churn. I’ll refactor and stabilize the login/registration flow, fine-tune the main navigation, and harden forms to prevent lost state or non-responsive buttons. Expect targeted changes: theming fixes for browser-native feel, widget tree optimizations, reduced rebuilds, and robust click handling. I’ll couple fixes with concise unit/widget/integration tests and ensure accessibility where relevant. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. We’ll work on a feature branch in your private Git repo and open a pull request when ready, with Lighthouse results and a clear release note set. What Lighthouse score targets and memory usage thresholds do you want us to achieve on the production Flutter Web build? Are there any flaky tests or specific forms with the most trouble-prone validation that I should prioritize? Do you have a preferred naming convention or CI workflow for the feature-branch PR and release notes?
$10 USD in 48 days
8.1
8.1

Hi, there The real challenge is not patching visible bugs but removing the instability between Flutter Web rendering, Provider state, and route transitions, because that is what causes jank, broken clicks, and state loss to keep coming back. This should start with a root-cause pass across login, navigation, forms, and dashboard load, then apply targeted fixes around widget rebuilds, state retention, async actions, and route handling without introducing regressions. Clean test coverage matters here because performance and navigation bugs tend to reappear quietly. The key here is controlling rebuild and navigation behavior together, since UI polish means little if state and actions remain fragile. That improves usability, runtime stability, and measurable browser performance. The first step is profiling the critical flows and isolating hot spots, then shipping fixes in a controlled branch with release notes. This should come back faster, cleaner, and stable enough to ship..
$40 USD in 40 days
7.1
7.1

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$10 USD in 40 days
7.3
7.3

Hi There!!! ★★★★ ( Debug & optimize Flutter Web app for performance, UI & stability fixes ) ★★★★ I understand you need a deep debugging and optimization pass on your Flutter Web app to fix UI/UX inconsistencies, performance bottlenecks, and functional/state issues—especially in auth, navigation, and forms—while improving overall runtime stability. ⚜ Diagnose UI/UX issues (layout, theming, interactions) ⚜ Fix navigation & state loss issues (Provider-based flow) ⚜ Optimize Flutter Web performance (FPS, load time, jank) ⚜ Debug login/registration & form failures ⚜ Improve route transitions & memory usage ⚜ Implement clean tested fixes via feature branch PR ⚜ Provide release notes with improvements summary I have solid experience in Flutter Web debugging, performance tuning, and state management (Provider/Bloc). I’ve optimized apps with similar issues like jank, rebuild spikes, and navigation state loss. I’ll carefully trace root causes, refactor problematic widgets, and improve rendering efficiency without breaking existing logic. Testing and Lighthouse improvements will be a key focus. Let’s connect and get your app stable and smooth. Warm Regards, Farhin B.
$8 USD in 40 days
6.4
6.4

Hi there, I have read your project requirement. You need debugging and optimization of your Flutter web app covering UI/UX inconsistencies, performance bottlenecks, and functional/state issues, especially in login, navigation, forms, and overall runtime stability. We will audit the codebase to identify root causes (rendering inefficiencies, state mismanagement with Provider, unnecessary rebuilds, routing issues), fix UI alignment and theming for web consistency, optimize performance (lazy loading, widget rebuild control, caching, code splitting), and resolve functional bugs. The result will be a stable, optimized build with improved Lighthouse scores, smoother navigation, and reliable state handling, along with clean commits and release notes. Questions: ========== Are you using Navigator 1.0 or 2.0 (Router API) for routing? Any heavy third-party packages impacting performance? Do you already have performance benchmarks (Lighthouse/FPS) to compare? Should we also refactor parts of Provider setup if needed? Best Regards, Srashtasoft Team
$12 USD in 40 days
6.5
6.5

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert
$12 USD in 40 days
5.7
5.7

Hello, I can debug and optimize your Flutter Web app fixing UI/UX issues, performance bottlenecks, and functional bugs. I have experience improving load times, reducing jank, fixing state issues (Provider), and stabilizing navigation flows. I’ll identify root causes, apply clean, testable fixes, and deliver a stable build with concise release notes via PR. Ready to start and improve performance quickly..
$11 USD in 40 days
5.0
5.0

✋ Hi There!!! ✋ The Goal of the project:- Fix bugs, optimize performance, and refine UI UX for a stable and smooth Flutter web application. I carefully read your requirements and understand you need to diagnose UI inconsistencies, improve performance issues like jank and slow transitions, and fix functional errors related to state and navigation in your Flutter web app. I am a strong fit because I have hands on experience optimizing Flutter web apps for performance and stability. • Debug UI issues and ensure consistent layout, theming, and interactions • Optimize performance including load time, transitions, and CPU usage • Fix state management and navigation bugs using Provider with stable logic I will also provide clean UI improvements, structured code fixes, full testing, performance validation, and complete updated source code delivery with release notes. With 9+ years of experience, I have handled similar Flutter debugging and optimization projects. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$8 USD in 40 days
5.0
5.0

Hello, I’m Billy Bryan, an independent Flutter developer with deep Flutter Web experience. I specialize in UI polish, performance tuning, and robust state management with Provider. I’ve fixed login/registration flows, navigation and form-heavy routes, reduced jank, and tightened theming for web parity. I’ll diagnose root causes in UI alignment, transitions, and state loss, implement clean, test-covered fixes, and deliver a stable web build with concise release notes. I’ll target Lighthouse scores, FPS, and memory improvements and provide a PR on a feature branch. Proposed timeline: diagnostics in 1 day, fixes in 2-3 days, review next steps. Best regards, Billy Bryan
$20 USD in 39 days
5.1
5.1

Hi, As per my understanding: You have an existing Flutter web application in production that requires immediate technical refinement across three critical areas: UI/UX consistency, runtime performance, and core functionality. Specifically, you are facing alignment issues, heavy CPU usage during dashboard loads, and state management glitches where data is lost during navigation. Your stack is modern (null-safety, Provider), and you require a developer who can move from diagnosis to clean, test-covered implementation while significantly improving Google Lighthouse scores and FPS stability. Implementation approach: I will adopt a systematic debugging and optimization strategy focused on the Flutter Web engine: 1. Performance Profiling: I will use DevTools to identify "jank" causes, focusing on heavy widget rebuilds and shader compilation issues affecting your dashboard. 2. State & Logic Fixes: I will audit your Provider implementation to resolve state-loss during routing and fix broken button interactions by ensuring proper context handling. 3. UI Refinement: I will standardize your theme and layout constraints to ensure a native browser feel and pixel-perfect alignment. 4. Optimization: Implementing deferred loading for heavy routes and optimizing asset delivery to reduce initial load times and CPU overhead. 5. Quality Assurance: Delivering changes through clean PRs on your feature branch, accompanied by clear release notes.
$8 USD in 40 days
5.1
5.1

Hi, I can help stabilize and optimize your Flutter Web app quickly and cleanly. I’ve worked on production Flutter apps (Provider-based) focusing on performance tuning, UI consistency, and fixing tricky state/navigation bugs. How I’ll approach this: Deep diagnosis (DevTools, profiling CPU/memory, widget rebuild tracking) Fix UI/UX inconsistencies for a more native web feel Optimize performance (lazy loading, repaint boundaries, reducing rebuilds, route transitions) Resolve state loss & broken actions (Provider scope, navigation handling) Deliver clean, test-covered fixes + PR with clear release notes Quick questions: Flutter version & rendering mode (HTML/CanvasKit)? Any recent changes before issues started? Target Lighthouse/FPS benchmarks? I’ll ensure measurable improvements in load time, smoothness, and reliability. Ready to start immediately. Best regards, Inciterz team
$12 USD in 40 days
4.8
4.8

Hi, I am Haresh, having 14+ years of experience in Software Testing Industry. - Having unique blend of knowledge in Quality Product Delivery, Processes Management, Functional testing, Integration and regression testing, load and Perfromance Testing which help me to take the Quality of the software to the next level. - Hands on experience on testing Desktop, Web Based, Mobile application and ERP based application. - Hands on experience on automation testing tools on selenium webdriver, jmeter, katalon studio, Appium, cypress, selenium with TestNG freamwork etc.. - Thorough understanding of Product Delivery Life Cycle, Software Testing Life Cycle and Software Development Life Cycle. - Experience in Well conversant with writing Test plan,Test Cases,Bug report, Release Note and Product Health Report. - Worked in various domains like Finance, Retail, Web Portals, Healthcare, ecommnerce, CMS, Eduction Portal, Life Insurance, ERP system etc. - I do have require mobile devices to test mobile view or applications like android and iOS applications. - I have hands on experience with Git, postman, MSSQL Server. Kindly review my profile and let me know you view over the same. Thanks, Haresh
$12 USD in 40 days
4.9
4.9

Dear client, i can fix your flutter based app code bugs, I have more than 9 years of exp in apps and web development.
$12 USD in 40 days
4.5
4.5

We’ll trace the root causes across the login/registration flow, navigation, and form screens, then tighten the affected Flutter Web code so the UI behaves consistently in the browser and state survives navigation as expected. Since this is a Provider-based app, we’ll focus on isolating rebuild-heavy widgets, fixing the failing actions, and reducing the jank that shows up on first load and route changes. You’ll get test-covered fixes on a feature branch, a stable web build, and concise release notes that summarize the changes and any remaining follow-up items. We also work with performance optimization and bug fixing in Flutter, so we can keep the scope centered on measurable improvements to responsiveness and reliability.
$15 USD in 30 days
4.2
4.2

Hi, this is Kris based in McKinney, Texas. I’ve reviewed your project and understand you need a full debugging and refinement pass on an existing Flutter Web application, focusing on fixing UI/UX inconsistencies, improving runtime performance (initial load, route transitions, and form responsiveness), and resolving functional/state-related issues in authentication, navigation, and interactive components using a Provider-based architecture. My approach would be to start with a structured codebase audit to isolate performance bottlenecks (widget rebuild patterns, unnecessary re-renders, overuse of setState/Provider listeners, and expensive build cycles), then move into profiling the login/registration flow, navigation system, and form handling to identify state persistence and lifecycle issues. I would next refactor problematic widgets for more efficient rebuild control, optimize routing transitions, and reduce CPU-heavy operations on render. Finally, I would address UI alignment and theming inconsistencies by standardizing layout structure and interaction patterns across the app, followed by validation through integration testing and performance benchmarking. Regards, Kris
$15 USD in 40 days
4.1
4.1

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