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My operational app, built on ReactJS and NodeJS, is in need of a skilled developer to help troubleshoot and fix some bugs, as well as implementing new features. The project deadline is April 30th. New Features - User authentication - Social media integration - Push notifications - Polish the UI make it more user friendly, screen size and buttons - Redesign the Iframe - Rearrange and restructure the App UI - Rearrange and restructure the webApp UI - Rearrange and restructure the Market place - Payment intergration transfer ( such Veemo, CashApp, zelle) most US transfer type of payment - Two ways Google and outlook calendar synchronisation. (right now it is one way) - Able to build the using Capacitor - Points Rewards programs - Completing the USER profile and UI Bugs - UI issues - Performance issues - Data processing errors Platforms - Web - iOS - Android Ideal candidates should have: - Extensive experience with ReactJS and NodeJS - Proven track record of implementing user authentication and social media integration - Expertise in optimizing app performance and troubleshooting UI issues - Familiarity with cross-platform app development (Web, iOS, Android) - Experience working with push notifications - Ability to meet project deadlines
Projekt-ID: 40228455
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284 freelancere byder i gennemsnit $3.895 CAD på dette job

Hello, I’m an experienced ReactJS & NodeJS developer with a strong track record of stabilizing production apps and delivering scalable cross-platform solutions (Web, iOS, Android via Capacitor) within tight deadlines like April 30th. I will resolve UI, performance, and data processing bugs while restructuring and modernizing the WebApp, Marketplace, and Iframe architecture for improved usability and responsiveness. New feature implementation includes secure user authentication, social media integration, two-way Google & Outlook calendar sync, US payment integrations (Venmo, CashApp, Zelle), push notifications, and a complete user profile & rewards system. I will optimize UI/UX across devices, refine screen layouts and buttons, and enhance overall app performance for a smoother user experience.. Wanna discuss project in detail with an opportunity to start work together… Thanks
$3.200 CAD på 25 dage
9,3
9,3

Hi there, I understand you need a React/Node app fixed for bugs and enhanced with new features across Web, iOS, and Android. I will diagnose UI and data flow issues, optimize performance, implement robust user authentication, social login, push notifications, currency payments, two-way calendar sync, Capacitor build, and a polished UI that scales for different screens. I’ll reorganize the app structure (UI, marketplace, iframe), ensure reliable data handling, and deliver a responsive experience on all platforms by April 30. My approach is to first reproduce and categorize bugs, then implement the features in modular, testable chunks with clear milestones. I’ll keep you updated with progress and use lightweight, well-documented code so future changes are easy. What is your preferred authentication flow and which social platforms do you want integrated first to hit the April 30 deadline? Best regards,
$5.000 CAD på 17 dage
8,9
8,9

With over 10 years of experience in web and mobile development, specializing in ReactJS and NodeJS, I understand the importance of troubleshooting bugs and implementing new features to enhance your app. Your project deadline of April 30th presents a challenge that I am ready to tackle head-on. In the realm of fintech, healthtech, and blockchain projects, I have successfully delivered tailored solutions that drive results. My expertise in user authentication, social media integration, and UI optimization align perfectly with the new features and bug fixes required for your app. I am confident that my experience in optimizing app performance, implementing push notifications, and working on cross-platform development will ensure a seamless integration of the requested features and bug fixes. Let's work together to elevate your app to the next level. Reach out to me to discuss how we can get started on enhancing your app today.
$4.000 CAD på 45 dage
8,4
8,4

With my wealth of experience spanning over 20 years in various spheres of technology, I am confident about my ability to troubleshoot and enhance your app efficiently. My proficiency in ReactJS and NodeJS has equipped me with the skills essential to actualize any features required. User authentication, social media integration, push notification, UI enhancement, and so on, have been part of my repertoire throughout my extensive career. Moreover, I pride myself on being a problem solver. I am well-adept in pinning down performance issues, optimizing apps, and resolving data processing errors swiftly and effectively. Furthermore, my competency transcends single platform development. Be it iOS, Android or web-based applications - I have the knowledge and expertise to deliver quality solutions on all grounds. Proficiency with push notifications implementation is also one of my strong suits that will greatly enhance your user engagement. In conclusion, by entrusting me with this project, you'll be leveraging not just skills but a deep well of experience ready to optimize your app's functionality while remaining steadfast on meeting strict deadlines. Let's develop a masterpiece together!
$3.000 CAD på 7 dage
8,2
8,2

Hello, I have read your requirement to enhance and optimize your ReactJS and NodeJS operational app. I can do that, and I have over 8 years of experience in full-stack development across web, iOS, and Android platforms. I have worked on complex applications involving authentication systems, payment integrations, calendar synchronization, push notifications, and performance optimization. Your project requires both resolving existing bugs and implementing advanced features like user authentication, social media integration, two-way Google and Outlook calendar sync, US-based payment transfers such as Venmo, CashApp, and Zelle, rewards programs, and building through Capacitor. Along with this, restructuring and polishing the UI across the web app, mobile app, and marketplace while improving performance and fixing data processing issues is something I am very comfortable handling. I focus on writing clean, scalable code and significantly improving user experience while maintaining performance and security. I have strong experience optimizing NodeJS backends, restructuring React interfaces for better usability across screen sizes, and ensuring smooth cross-platform deployment. I am confident I can help you meet the April 30th deadline with proper milestone planning and consistent communication throughout the development process. I would be happy to review your current codebase and discuss the best roadmap to move forward. Best regards, Deepak
$4.600 CAD på 45 dage
8,0
8,0

Hi, This is Elias from Miami. I’ve reviewed your scope — this is a stabilization + expansion sprint, not a small tweak job. With a ReactJS + NodeJS stack and April 30 deadline, this needs structured execution. You’re asking for: auth overhaul, social integrations, push notifications, payment transfers (Venmo/Cash App/Zelle-style), calendar sync (2-way), UI/UX restructuring across web + marketplace, rewards logic, Capacitor build support, plus bug fixing and performance optimization. I’ve worked on React/Node platforms where we: • Rebuilt auth with JWT/OAuth (Google/Microsoft) • Implemented push (FCM/APNs) • Optimized slow renders + backend query bottlenecks • Refactored UI architecture without breaking production • Integrated payment APIs and wallet logic • Handled 2-way Google/Microsoft calendar sync via webhook + token refresh My approach: 1. Code audit + bug triage 2. Stabilize performance & data issues 3. Implement core auth + calendar sync 4. Layer payments + rewards 5. UI restructure + Capacitor packaging Q1: Is authentication currently custom-built or using Firebase/Auth0/etc.? Q2: For payments, do you need direct API integrations or redirect-based flows? Q3: Is the current calendar sync using OAuth with stored refresh tokens? If we lock scope quickly, April 30 is realistic with focused sprints. Let’s get this cleaned up properly. Regards.
$4.000 CAD på 7 dage
8,0
8,0

I HAVE SUCCESSFULLY DELIVERED COMPLEX CROSS-PLATFORM APPS USING REACTJS AND NODEJS, INCLUDING FULL FEATURE INTEGRATION AND UI OPTIMIZATION. I can help you troubleshoot your operational app and implement all requested features: User Authentication & Social Login: Secure login, OAuth2, and social media integration. Push Notifications: Cross-platform notifications via Capacitor for iOS, Android, and web. UI/UX Improvements: Responsive redesign of Iframes, marketplace, webApp, and app screens; screen size optimization; intuitive button layout. Payment Integration: Support for Veemo, CashApp, Zelle, and other US payment types. Calendar Sync: Full two-way Google and Outlook calendar synchronization. Rewards & User Profiles: Implement points rewards program and complete profile functionality. Bug Fixes & Performance: Resolve UI glitches, data processing errors, and performance bottlenecks. Deliverables: Fully functioning Web, iOS, and Android apps ready for deployment using Capacitor. Clean, maintainable source code with setup instructions in Git. 2 years free ongoing support post-launch for bug fixes, performance optimization, and minor enhancements. I follow best practices for scalability, maintainability, and cross-platform consistency, ensuring the app meets deadlines and runs smoothly. My focus is on delivering a polished, user-friendly experience while maintaining robust backend performance.
$3.000 CAD på 25 dage
8,3
8,3

✨⏩ I can troubleshoot your ReactJS and NodeJS app, fix bugs, and implement the new features you outlined⏩✨ Hi, Happy February!✨ I reviewed your requirements and this is a great fit. I’ll resolve UI issues, performance problems, and data processing errors while polishing the interface for responsiveness and usability. New features will include user authentication, social media integration, push notifications, payment transfer options, two‑way calendar sync, points rewards, and completed user profiles. I’ll also restructure the app UI, webApp UI, and marketplace, redesign the iframe, and ensure builds with Capacitor for iOS and Android. All work will be milestone‑driven with clear updates, testing across platforms, and delivery by your April 30 deadline. Documentation will be provided so you can track and maintain the enhancements. Best Regards, Sachin
$3.000 CAD på 25 dage
7,7
7,7

Hi Ricardi, I have extensive experience in ReactJS and NodeJS, and I am well-equipped to troubleshoot and fix bugs while implementing new features for your app. I specialize in user authentication, social media integration, UI optimization, and cross-platform development. Let's discuss further to ensure a successful project completion. Regards, Sai Bhaskar
$3.900 CAD på 45 dage
7,1
7,1

Hello! I can step in immediately to stabilize, enhance, and prepare your ReactJS + NodeJS operational app for an April 30th deadline. The focus will be structured bug resolution first, then controlled feature rollout without destabilizing production. Structure I’ll implement: • Full bug audit (UI inconsistencies, performance bottlenecks, data processing errors) • Authentication system (JWT/OAuth + secure session handling) • Social media integration + push notifications (Web + iOS/Android via Capacitor) • UI/UX restructuring (App, WebApp, Marketplace, Iframe redesign, responsive polish) • Payment integrations (Zelle/CashApp alternatives via compliant APIs; Venmo-style integrations where supported) • Two-way Google & Outlook calendar sync • Points rewards logic + completed user profile flows Technically, I’ll optimize API performance, refactor heavy components, implement proper state management, and ensure clean Capacitor builds for iOS/Android. Cross-platform stability and responsive layout consistency will be prioritized. You’ll receive: • Fixed and optimized codebase • New features fully integrated • Production-ready cross-platform builds • Structured testing before April 30 Let’s open the chat I can break this into a fast milestone plan to meet your deadline. Best, Jasmin
$4.000 CAD på 7 dage
8,0
8,0

⭐⭐⭐⭐⭐ Dear Valuable Client, We at CnELIndia, led by Raman Ladhani, are well-equipped to help you successfully complete your ReactJS and NodeJS app enhancements by April 30th. Our approach includes: Bug Fixes & Performance Optimization: Conduct a thorough audit of UI issues, performance bottlenecks, and data processing errors to deliver a stable app across Web, iOS, and Android. Feature Implementation: Implement secure user authentication, social media integration, push notifications, points rewards, and complete the user profile module. UI/UX Enhancement: Redesign and restructure App, WebApp, and Marketplace interfaces for improved usability, responsive screens, and polished visuals. Integration & Cross-Platform Support: Integrate payments (Veemo, CashApp, Zelle), enable two-way Google & Outlook calendar sync, and build using Capacitor for seamless cross-platform deployment. With our expertise in ReactJS, NodeJS, and mobile app development, we ensure timely delivery and a high-quality, user-friendly product.
$4.000 CAD på 7 dage
7,2
7,2

✅ WEBAPP| React Native | Firebase |Mobile App Development Expert Hi, Hope you are doing good. I have read your requirements carefully and can give you 100% assistance as a React Native Developer for building or enhancing your mobile application. I specialize in creating fast, stable, and scalable apps for both iOS & Android, backed by a secure and efficient Firebase architecture. I’d love the opportunity to discuss your idea further and collaborate on developing a modern, intuitive, and impactful app. (Note: Please consider the current budget as flexible — we can finalize it after discussing the complete scope.) Thanks & Regards, Kajal
$4.000 CAD på 7 dage
6,7
6,7

Hi Ricarmani, We can quickly stabilize and enhance your React/Node app across Web, iOS, and Android. I will fix UI, performance, and data issues, then implement secure authentication, social login, push notifications, payments (Veemo, CashApp, Zelle), two-way Google/Outlook sync, and a cleaner, responsive UI with Capacitor. Expect structured marketplace, redesigned iframe, complete user profiles, and rewards system. I follow a clear milestone plan to deliver before April 30, with communication and scalable, maintainable code. Let’s start immediately and get results. Best, SNR
$3.600 CAD på 30 dage
7,0
7,0

Hi there, I’m excited to collaborate on your IOS-ANDROID-WEBAPP project. With a strong track record in ReactJS and NodeJS, I’ve engineered end-to-end web and mobile apps, implemented robust authentication, social media integration, real-time notifications, cross-platform optimizations, and scalable payment workflows. I understand your app’s current needs: fix UI/UX bottlenecks, address performance and data processing issues, and deliver a feature-rich, user-friendly cross-platform product that aligns with a tight deadline. What I bring to the table is a blend of frontend finesse and solid backend discipline. I’ve led multiple projects where user authentication was a core requirement, integrated OAuth-based social logins, and built push notification architectures that reliably engage users across web and mobile. On the frontend, I optimize rendering paths, reduce bundle sizes, and refine responsive layouts to ensure a polished experience on web, iOS, and Android. My backend focus includes API design, data validation, and scalable integrations with payment providers and external calendar services. Key approach for your project: - Debug and stabilize current UI issues: layout inconsistencies, responsive glitches, and performance hitches. I’ll profile main threads, optimize render cycles, and implement a component-driven UI polish to improve accessibility and usability across screen sizes and devices. - Implement user authentication and social media integration: secure sign-i
$4.440 CAD på 30 dage
6,6
6,6

I am confident my skills in Data Processing, Mobile App Development, Troubleshooting, Web Development, and iOS Development align perfectly with your project requirements. I assure you that the budget can be adjusted to suit the project scope. My priority is delivering quality work within your budget constraints. Please review my 15-year-old profile to see my extensive experience. Let's discuss the job details and get started. I am eager to showcase my commitment to this project. Looking forward to hearing from you.
$3.500 CAD på 21 dage
6,6
6,6

Hi Ricardi D. I’m your web developer, ready to turn your project IOS-ANDROID-WEBAPP - Bug Fixing & Feature Enhancement for React/Node App into reality! I’d love to discuss the details and create something amazing together. Feel free to message me anytime, and we can also hop on a quick video or audio call whenever it's convenient for you. I’ve developed many projects exactly like what you’re looking for. If you want to see more relevant samples, just contact me through the chatbox, and I’ll share them instantly. ★ Why Clients Trust Me 500+ successful web projects delivered 430+ positive client reviews Expert in Data Processing, Mobile App Development, Troubleshooting, Web Development, iOS Development WordPress, Shopify, PHP, JavaScript, HTML, CSS, Plugin/Theme Development, Laravel, WebApp Clean, modern, responsive and SEO-optimized designs Fast delivery, great communication, and long-term support Available during EST hours for smooth collaboration If you want a professional developer who delivers quality work on time and stress-free, let’s connect. I’m excited to help build something amazing for you. Best regards, Kausar Parveen
$4.000 CAD på 7 dage
6,7
6,7

Hello, With my extensive experience as a Full-Stack Developer specializing in Python and JavaScript for web and mobile applications, I believe I am an ideal candidate for your project. I have a proven track record of implementing user authentication, social media integration, and other functionalities you mentioned, including payment integration transfer of various types. My proficiency in ReactJS and NodeJS will ensure that I'm able to effectively troubleshoot and fix the bugs on your operational app while optimizing its performance. Having worked on cross-platform apps as well, I understand the challenges that come with making sure an app works seamlessly on different platforms like iOS, Android, and the web. My ability to meet project deadlines coupled with my knack for detail will ensure that your project is completed well before your deadline of April 30th. You can count on me to not only fix the existing bugs but also bring a fresh perspective to enhance your app's features and UI to boost its user-friendliness. Additionally, I take pride in my excellent data-processing skills which are crucial for managing the large-scale data used by your app such as two-way synchronisation with Google and Outlook calendars. With me onboard, you not only gain a skilled developer but also a reliable partner who is committed to delivering robust solutions on time and within budget. Let's connect and transform your app into a bug-free and fea Thanks!
$4.440 CAD på 1 dag
6,4
6,4

Hi There!!! ⭐⭐⭐⭐ (iOS-Android-WebApp – Bug Fixing & Feature Enhancement) ⭐⭐⭐⭐ I understand you need a skilled developer to fix bugs and implement new features in your ReactJS and NodeJS app across web, iOS, and Android. Key work includes authentication, social media integration, push notifications, UI/UX polishing, payment transfers, calendar sync, rewards programs, and performance optimization. Services 24*7 available for discussion, reply in a few hours UI & UX design with unlimited revisions Deployment support included Source code provided at project end 90-days support for bug fixing With 9+ years in full-stack and cross-platform development, I’ve enhanced React/Node apps with seamless authentication, social integrations, push notifications, and optimized UI/UX. My approach is to systematically fix existing bugs, implement requested features using Capacitor for cross-platform builds, and ensure smooth performance while keeping the UI intuitive and responsive. Excited to improve your app and meet your April 30th deadline. Let’s connect and get started! Best Regards, Farhin B.
$3.030 CAD på 15 dage
6,5
6,5

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$4.000 CAD på 45 dage
6,5
6,5

Hi, We’ve developed several web and mobile apps using React, Node.js, and Flutter, including a multi-vendor marketplace with integrated payment systems and user authentication. We also have extensive experience with CI/CD pipelines, ensuring that new features are delivered quickly and reliably. For your project, we can assign a dedicated full-stack developer with 10 years of experience who can work on both the front-end and back-end as needed. This approach is often more efficient than using separate front-end and back-end developers. We’ve worked with various payment gateways, including Stripe, PayPal, and RazorPay, and have integrated Google and Outlook calendar APIs in previous projects. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best regards, Adil
$4.233,12 CAD på 21 dage
6,2
6,2

Laval, Canada
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