Flutter Developer - Bug fixing in existing iOS & Android apps, Admin console

@joomextensions

Hello, I am from Ahmedabad. I can fix all the bugs in your project for ₹18,000. We can use Freelancer.com for the project, so the payment will be secure for both of us. You can release the payment only after all the bugs have been fixed and you are satisfied with the work. I will also help you upload the app to both the Google Play Store and the Apple App Store. Please let me know if you'd like to discuss the project further. Thank you!

@technologiesit

Having worked as a Full Stack Developer and Digital Solutions Expert for over 8 years, I believe I have the right set of skills needed to assist you efficiently with your Flutter project. I have a commendable record of completing over 100 successful projects, a testament to my ability to deliver fast while maintaining clear communication. My core competency in Flutter and Mobile App Development grants me the expertise needed to fix the approximately 40 bugs present in your iOS and Android apps while also improving their performance. My extensive experience in website development using HTML, PHP, and other tools would be advantageous in updating your existing Flutter website as per your requirements. My proficiency also extends to API development and integrations, which will help me resolve the OTP authentication issues and optimize your Admin console effectively. Lastly, my commitment towards providing long-term support aligns well with your requirement of a 1-year post-live support. Assembling all these qualities together makes me an ideal candidate for this task; Let's collaborate and transform your vision into reality as we fix these bugs, enhance the performance and perfect every aspect of your app securely, scalably and effectively. Looking forward to discussing this opportunity further! Thanks & Regards, Vimal Kumar Prajapat

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description. I can do this job with quality product. I am always available for your support. Thanks

@vishal1145

Your OTP authentication issue will cascade into failed user registrations if the token expiry logic isn't synchronized between Flutter and your PHP backend. This creates a poor onboarding experience that directly impacts retention. Quick questions - what's your current test coverage percentage for the refund logic? And are you handling App Store review guidelines for subscription cancellations (they require specific UI flows)? Here is the architectural approach: - FLUTTER: Refactor the cancellation flow to meet Apple's StoreKit 2 requirements and implement idempotent refund APIs to prevent double-processing. - PHP BACKEND: Audit the OTP token generation to ensure Redis/session expiry matches client-side timeout, eliminating race conditions during authentication. - ADMIN CONSOLE: Optimize database queries causing slow dashboard loads and add real-time error logging so you catch production issues before users report them. I've debugged similar multi-app ecosystems for 2 food delivery platforms that scaled to 100K+ orders per month. Let's schedule a 20-minute call to review your current architecture before finalizing the support contract.

@AnhTVc

Hello, I’m interested in improving and maintaining your Flutter-based food delivery platform by fixing existing issues, optimizing performance, and ensuring a smooth production deployment. I have experience working with Flutter applications, mobile app debugging, API integrations, admin panels, and end-to-end deployment processes for Android, iOS, and web platforms. I can help with: * Fixing existing bugs across customer, homechef, and delivery apps. * Implementing cancellation and refund workflows. * Resolving OTP authentication issues. * Improving app performance, stability, and user experience. * Optimizing the admin console and fixing backend-related issues. * Updating the Flutter website and improving UI consistency. * Completing full QA testing and preparing App Store / Play Store releases. * Providing ongoing support and maintenance after deployment. My approach focuses on clean code, reliable fixes, thorough testing, and delivering a stable product that can scale. I am comfortable working on long-term support engagements and providing regular updates throughout the process. I would be happy to review the current application, bug list, and technical stack to create an improvement plan and timeline. Best regards, Tran Viet

@mayankinnovative

As an experienced and dependable developer, I offer a unique mix of skills that make me the ideal candidate for your project. With over two decades of experience in PHP development and proficient knowledge in Android, HTML, iOS Development and PHP, I am well-suited to identify and fix the bugs/issues you're encountering in your Flutter apps. Additionally, I bring extensive expertise in WooCommerce systems- their order flow fixes, payment gateway issues as well as Laravel backend development - all of which directly relate to streamlining your cancellation & refund logics implementation and addressing the OTP authentication issue. A clean functional system is every business' goal; my skill set aims at exactly that through debugging, optimizing performance & long-term support. But my commitment does not just end here. My focus is on building long-term relationships with clients and providing on-going support after projects go live. I believe not just in delivering quick fixes but also thorough solutions that are scalable as your business grows. So let's team up and ensure your apps are standardized, optimized and bug-free for smooth operations.

@Jennycreation

Hello sir , i am full time freelancer and have 17+ years of experience in - trading automation using multiple broker api - python web automation using selenium and request api. - Software and Web development in asp.net c# webform, MVC, angular , javascript,sql server . - Database : Microsoft SQL Server - Front End Technology : HTML 5, JQUERY, AJAX, Javscript, Bootstrap - Android development - Third party API integration Like Payment Gateway , SMS and Email API integration, and banking Financial API , Insurance API - WordPress Development - WordPress plugin development - Automation Bot Software Work. Work on many Automation bot software and website scraping work. please contact me on private chat, we can discuss more about project and show you demo as well Thanks

@iimtpradeepdash

I work on production Flutter apps that run live on both stores—bug sweeps, performance, release, and support. Last quarter I did a multi-role kitchen platform with customer, admin, and delivery apps plus web (Flutter web) and one backend, so your setup matches what I handle. I’d audit the codebase, fix the major bugs, rewrite the cancellation/refund flows for edge cases, and handle Play Store/App Store deployment. OTP/auth bugs in Flutter can be device or backend—I'll check both. Fast Flutter web updates are fine. Does the admin console run Flutter or standard web tech? That decides my approach to optimising your panel. Can start this week if the repo access lines up. Pradeep

@Sohailzk

Hello, I will fix your all issues in app and publish to stores without any problem. Im expert Flutter developer, kindly dm me to discuss more in chat. Thanks

@abhishek060

Hello, I understand you're looking for a developer to stabilize and optimize your existing Flutter ecosystem, including the Customer, Homechef, Delivery apps, Flutter website, and Admin Console. The goal is not only to fix the reported issues but also to deliver a reliable, production-ready platform with long-term support. I have experience working on existing Flutter applications, API integrations, authentication, admin panels, and App Store/Play Store deployments. My approach is to identify the root cause of issues and deliver clean, maintainable solutions. I'll: * Fix the reported bugs and optimize app performance. * Implement the cancellation and refund workflow. * Resolve OTP authentication issues. * Optimize the Admin Console and update the Flutter website. * Perform complete testing and deploy all applications to the App Store and Play Store. * Enhance UI where needed and provide one year of post-launch support. Please share the source code, backend details, and bug list. I'll review everything and provide a clear implementation plan with realistic timelines before we begin. I look forward to discussing your project. Best regards, Abhishek

@ayushporwal370

Hello, Are you looking for a Professional Flutter App Developer Expert? I’d be happy to take on your project and bring my expertise to make it a success. I’m truly interested in working on your project and would love ❤️ to be a part of it. Let’s connect for a quick chat to discuss how we can collaborate! Best regards, Ayush

@MQamar123

As an accomplished developer with over 7 years of experience, I am confident that my vast range of skills and thorough understanding of app development make me the ideal candidate for your Flutter bug fixing project. My proficiency with languages and frameworks like Flutter, PHP, and Laravel will ensure smooth issue resolution for your apps. The first version of your customer and homechef apps are already available on the Android and iOS App Stores, and I can leverage my expertise in publishing apps on Google Playstore & Apple AppStore to ensure a seamless transition for your updated version. What sets me apart is not only my technical knowledge but also my unwavering commitment to client satisfaction. A 1-year support plan has been requested beyond project completion, which I am more than happy to provide. With Bangalore as your preferred location, you'll be glad to know that I am precisely based there. This guarantees an easy working relationship, quick communication and effective on-site debugging if required. Trusting me with this important task means getting a meticulous person skilled in cleaning up code, identifying performance hurdles, conceiving timely improvements such as cancellation & refund logics implementation with OTP authentication resolution while optimizing your admin console as well. All within the time frame agreed upon, ensuring a fully streamlined product ready for deployment.

@mahads31

As the founder of Solves Inn, my mission has always been to provide my clients with smart, scalable, and future-ready digital solutions. I have extensive experience in web and mobile development that stretches across various industries. And not only do we develop clean and fully functional apps, but at Solves Inn we believe in providing long-term support and are ready to assist you even after the project is officially completed. In your specific case, I understand that you need a dedicated Flutter developer to address approximately 40 bugs or any other improvements required, such as OTP authentication or ensuring effective cancellation and refund logics. My team and I have a profound knowledge of Flutter cross-platform development framework and have successfully deployed multiple applications in both the App Store and Play Store. With experience ranging from designing customer-centric interfaces to implementing reliable back-end functionalities, I am confident that I can deliver a solution tailored to your needs. Another crucial parameter mentioned was seeking a freelancer based in Bangalore for continuous support for up to 1 year post implementation. Being based in Bangalore myself, this aspect would be well taken care of by my team at Solves Inn.

@ammarahmed20

Hi, I can help stabilize and complete your entire platform by fixing the existing bugs, implementing the cancellation and refund workflows, optimizing performance, and preparing all applications for production. I'll resolve the OTP authentication issues, improve the admin console, update the existing Flutter web application, thoroughly test the Customer, Homechef, and Delivery apps, and handle deployment to both the App Store and Google Play while ensuring the current functionality remains intact. I'll also enhance the UI where appropriate to deliver a cleaner, more polished user experience and provide ongoing support after launch. Do have a look at my profile portfolio for similar work. Could you share your current Flutter version, backend technology, and the existing bug list so I can provide an accurate timeline and fixed quote? Best regards, Ammar Malik

@sonika1419

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.

@bsuresh0212

Hello, Your project aligns well with my experience in maintaining and enhancing production Flutter applications. I have 11+ years of experience in web and mobile development, with strong expertise in Flutter, Firebase, REST APIs, Node.js, app optimization, debugging, and App Store/Play Store deployments. I've worked on large production applications involving bug fixing, performance improvements, authentication, payment workflows, and release management. I can help you: Fix the reported bugs and optimize app performance Implement cancellation and refund workflows Resolve OTP authentication issues Optimize the admin console Update the Flutter web application Test all three apps (Customer, Homechef & Delivery) Prepare and deploy production-ready builds for Android and iOS Improve UI/UX where required while keeping the existing design consistent I follow a structured development process with regular progress updates, clean Git commits, thorough testing, and well-documented code to ensure a stable release. I'm available to start immediately and would be happy to discuss the roadmap, milestones, and long-term support requirements. Looking forward to working with you. Best regards, Suresh

@Khushal2806

Hi, I'd be happy to help bring your platform to a stable production-ready state. I have strong experience with Flutter, backend integrations, app deployments, and fixing complex production issues. I can handle the bug fixes, cancellation/refund logic, OTP authentication, admin panel optimization, performance improvements, website updates, thorough testing, and deployment for the Customer, Homechef, and Delivery apps. I focus on writing clean, maintainable code and ensuring smooth App Store and Play Store releases. I'm also available to provide long-term support and continuous improvements after launch. I'd love to discuss the project in more detail and create a clear roadmap for delivering a polished, reliable product.

@jaroslavcaprata

Hi, there. I have solid experience working with existing Flutter applications, fixing complex bugs, improving app performance, and handling production deployments for both iOS and Android platforms. I have also worked on OTP authentication, payment and refund workflows, admin panel improvements, and maintaining multi-app ecosystems with customer, vendor, and delivery modules. My approach would be to first review the current codebase and identify the root causes of the reported issues, then systematically resolve bugs, optimize performance, and improve stability across the mobile apps, website, and admin console. I can also refine UI elements and implement practical improvements where needed to enhance the overall user experience. Thorough testing, deployment support, and proper documentation will be provided to ensure smooth releases and easier future maintenance. I am available to start immediately and would be happy to discuss the existing issues and requirements in detail. Thank you, Jaroslav Caprata

@saiqasheikhwork5

Hello, I hope you're doing well. I'd be happy to help stabilize, optimize, and complete your Flutter-based platform. With experience in **Flutter, Firebase, Node.js, REST APIs, and app deployment**, I can resolve the existing issues and prepare your applications for a successful production release. My scope will include fixing the reported bugs (approximately 40), improving app performance, implementing cancellation and refund workflows, resolving OTP authentication issues, optimizing the admin console, updating the Flutter web application, enhancing UI/UX where needed, and performing comprehensive testing across the Customer, HomeChef, and Delivery apps. I'll also handle deployment to the **Google Play Store** and **Apple App Store**, ensuring the applications meet store guidelines. Clean, well-documented code, regular progress updates, and thorough QA will be part of the process. I'm also available for long-term maintenance and support after deployment, including bug fixes, performance improvements, security updates, and future feature enhancements. I'd be happy to discuss your current codebase, timeline, and project requirements in more detail. Thank you, and I look forward to working with you.