React Native Mobile App development consultant

@ixorawebmob

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, specializing in React Native and Flutter for e-commerce applications. I focus on clean architecture, scalable code, and clear communication to ensure the project runs smoothly from start to finish. I will first assess your current application, address the necessary upgrades to the latest React Native version, and ensure compatibility with existing features. Additionally, I will effectively manage API integrations and payment systems like NACH and UPI, all while optimizing performance for a seamless user experience. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: 1. Do you have a specific timeline for the upgrades? 2. Are there any particular features or improvements you want prioritized? 3. How do you envision the payment integration process? 4. Do you have any existing API documentation available? 5. Are there any reference apps that align with your vision? Let’s discuss over chat!Could you clarify: 1. Do you have a specific timeline for the upgrades? 2. Are there any particular features or improvements you want prioritized? 3. How do you envision the payment integration process? 4. Do you have any existing API documentation available? 5. Are there any reference apps that

@pinkeegupta

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 Logical Soft Tech Pvt Ltd, Indore(M.P)

@bholakumar2298

Hi there, I am a Senior React Native Developer with over 5+ years of experience in mobile app development. I can help upgrade your app from an older version of React Native to the latest version efficiently and ensure everything runs smoothly. Let’s connect and get started. Thank you!

@abhishek060

Hi! I’d love to help you upgrade your e-commerce app—I’m very comfortable navigating the "breaking changes" of React Native updates and ensuring payment integrations like UPI and NACH remain rock solid. I’ll handle the framework migration while optimizing your API layers to make the shopping experience faster and more reliable for your users. I will perform a phased upgrade to the latest React Native version, specifically refactoring your payment hooks and REST services to ensure full compatibility with modern Android and iOS environments. Can we discuss on chat for more details. I can start immediately. Regards Abhishek

@GameOfWords

As an experienced and versatile mobile app developer, I am confident that I possess the right skills for your project. Combining my strong knowledge of React Native, Flutter, and mobile app development with my ability to integrate REST APIs and manage backend services, I can effectively enhance your existing e-commerce application. Choosing me ensures that not only will your application be upgraded to the latest version of React Native, but the improved features will also remain compatible with updated frameworks. Rest assured that your app's performances on various mobile devices will be optimized for smooth functioning. My awareness of API integration and previous experience with RESTful services complements this aspect of the project nicely. Beyond these technical aspects, you won't just gain a freelancer; you'll acquire a dedicated partner committed to providing valuable solutions that streamline workflows and automate tasks. Combined with my skills in AI automation and chatbot systems, we can take your e-commerce app to the next level. Contact me now, and let's turn your concepts into practical strategies for exponential growth!

@santoshkumars17

As an experienced Full Stack Web and Mobile App developer, specializing in both frontend and backend development with a particular focus on React Native, I bring everything your project requires to the table. For over 5 years, I have helped numerous clients build scalable, high-quality, and user-friendly applications. Now, I'm excited to bring this expertise to aid your e-commerce mobile app project. In upgrading and enhancing your existing mobile application, I assure you of maintaining crystal clear compatibility with the updated frameworks alongside integrating and managing REST APIs as well as backend services. To ensure peak performance and optimization across all mobile devices, my skills extend to API integration, database management, performance optimization and UI/UX-friendly development -- core requisites for your project. Choosing me for the job guarantees a clean optimized codebase that is not only future proof but also easily maintainable. Deadlines don't demotivate me but rather ignite the spark to ensure on-time delivery without ever compromising on quality or clear communication. Let's bring your ecommerce mobile app idea to reality together!

@BICSoft

Hi there, I read your project details regarding the React Native mobile app development consultant position. I can build and enhance a high-performance e-commerce mobile application for you using React Native, ensuring seamless integration with the latest frameworks and payment systems like NACH and UPI. My Tech Stack includes: - Frontend: React Native - Backend/API: Node.js / REST APIs - State Management: Redux Toolkit or Zustand I focus on performance optimization to ensure smooth functioning across mobile devices. With experience in building similar e-commerce platforms, I am confident in my ability to deliver a top-notch application. Let's discuss the features you need in the MVP. Best, Mohammad Mahmudul Islam IQLabs

@RajAbhisek

Hi, I am Raj Abhisek Panda, a web and mobile developer with 7 years of experience building and maintaining production-grade mobile applications across e-commerce, fintech, and other domains. I have strong hands-on experience with React Native across multiple versions, so upgrading your existing app to the latest version while keeping current features intact is something I have done before. Migration and compatibility work is a regular part of my mobile development practice. On the API side, I have integrated REST APIs and backend services in several React Native projects. Payment integrations including UPI are also familiar territory for me — I have worked on fintech applications where payment reliability and smooth UX were non-negotiable. For this project, my approach will be to first audit the existing codebase, identify breaking changes from the version upgrade, fix those systematically, and then move on to performance optimisation and any feature improvements. This way nothing gets accidentally broken during the upgrade. I also have Flutter experience, so if there is any parallel work needed on the Flutter side, I can handle that without you needing to bring in a separate resource. I can start immediately. Happy to share relevant past work or have a quick call to understand your current app structure before we begin. Thanks, Raj

@MuhammadAsad108

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Code Audit ⟶⟶ React Native Upgrade ⟶⟶ API Integration ⟶⟶ Payment Integration (NACH/UPI) ⟶⟶ Performance Optimization ⟶⟶ Testing & Debugging ⟶⟶ Final Deployment Key Highlights ✔ React Native upgrade — migrate your app to the latest stable version without breaking existing features. ✔ Codebase stabilization — fix deprecated packages, resolve compatibility issues, and clean up legacy code. ✔ API integration — seamless connection with REST APIs and backend services. ✔ Payment integration — secure NACH & UPI implementation for smooth transactions. ✔ Performance optimization — faster load times, smoother UI, and reduced crashes. ✔ Cross-device compatibility — consistent experience across Android & iOS devices. ✔ Scalable architecture — future-ready structure for adding new features بسهولة. ✔ Bug fixing & improvements — enhance stability and user experience. Best Regards, Asad Mobile App Developer | React Native Specialist | API Integration Expert

@softwarelinkerrs

With about 6 years' experience in app development, a specialization in React Native and good familiarity with Flutter, I am confident that I have the skills and expertise necessary to take your e-commerce mobile app to the next level. I have a proven track record integrating and managing complex backend systems, such as the REST APIs you mentioned, ensuring compatibility and smooth functioning across platforms. This extends to proficiency in payment system integration as well, including NACH and UPI. Clients repeatedly choose us for their critical projects because we approach development holistically. We don't just write lines of code—we understand your business needs. SoftwareLinkers consistently delivers secure, scalable and future-ready solutions that align with client goals. Our 100+ verified reviews averaging 4.9★ are testimonials to our full-stack expertise that includes both front-end (React Native/flutter) AND back-end (PHP), which will be particularly useful for the project. In conclusion, if you want a professional team with proven capabilities in Flutter, Mobile App Development (especially with Rest APIs) and React-Native, SoftwareLinkers is secondtonone in terms of trustworthiness, expertise and delivery. Let’s get talking so that we can fully comprehend the unique needs of your e-commerce mobile app project.

@b2btechnology20

With a solid 11+ years of experience in web design, app development, and SEO services, my team and I have the skills and expertise to help successfully complete your E-commerce app project. My proficiency in PHP, Wordpress, Laravel, Magento, CSS, React Native and Next js are well aligned with the needs of this project. Over the years, we have worked on multiple mobile app projects using React Native and Flutter, which makes us very comfortable with integrating APIs and backend services. This also includes optimizing performance and ensuring smooth functioning across different devices. One of our key differentiators is our understanding of current and previous versions of React Native.I always keep myself updated with the latest industry trends so that I can provide my clients with premium quality service. Overall, choosing me for this project ensures a comprehensive approach towards your e-commerce mobile app development which encompasses everything from design to deployment to user-friendly interfaces. Let’s take your project to newer heights by combining my experience,talents & capabilities! Thank you again for considering me for the position!

@Visharaa2024

Hello, I can help you upgrade and enhance your existing e-commerce mobile application to the latest version of React Native while ensuring stability, performance, and compatibility across devices. I have strong hands-on experience working with React Native across multiple versions, handling migrations, resolving breaking changes, and optimizing apps for smooth real-world usage. For your project, I will carefully update your current codebase to the latest React Native version, ensuring all existing features continue to function correctly while improving performance and responsiveness. I will also manage and optimize REST API integrations, ensuring efficient data handling and seamless communication with your backend services. In addition, I have experience integrating Indian payment systems like UPI and NACH, and I will ensure secure and reliable payment flows within the app. I will thoroughly test the application across Android and iOS devices to guarantee stability and a smooth user experience. My focus is on delivering a clean, maintainable upgrade with improved performance and scalability. I’m ready to get started and ensure your app runs efficiently on modern frameworks.

@nexbharat

As a seasoned Full-Stack App and Web Developer, with emphasis on Mobile App Development using React Native and Flutter, I am confident that I possess the right skillset and experience to deliver on your project's requirements. My journey in app development spans years, affording me hands-on familiarity with previous and current versions of React Native - an essential aspect considering your needs entail upgrading and enhancing an existing mobile application. My forte extends beyond the development phase as I excellently handle backend systems, API development, and RESTful services. This spells comfort in managing the integration of REST APIs/backend services within your app, as well as payment systems, such as NACH and UPI. Moreover, performance optimization is embedded in my work ethic; thus optimal app operation across devices won't be left to chance. Over time, my goal-oriented perspective has garnered applaudable reputation for efficient problem-solving. I place great value in clear communication, timely delivery and forging long-term relationships with clients. Additionally, I am driven by a desire to add tangible value to businesses through my skills and I look forward to doing just that for you. So let's collaborate towards transforming your e-commerce solution into an even more scalable, secure and high-performing system through modern technologies and effective execution!

@christianrainer4

Hello, I am a programmer dealing with mobile and web development. As a skilled RN developer, I have worked on similar roles. Recently I finished the updates of RN app using 0.81. So I believe I am a good candidate for this position. Please let me know if you have any questions. And if you are fine, I am going to remotely on your mac, so you can monitor my work. Why I am saying this is because building problems are frequently appearing though it was working in another PC. Thanks so much. Christian

@srdank001

Hi there, Upgrading an e-commerce app across frameworks requires precision—especially when maintaining stability while modernizing the codebase. I’ve helped teams transition legacy apps to the latest versions of React Native while keeping production features intact and improving overall performance. For your project, I’d start with a structured upgrade path—resolving dependency conflicts, updating native modules, and aligning navigation and state management with current best practices. API layers would be reviewed to ensure reliable communication with backend services, while payment integrations (including NACH and UPI) would be handled securely with proper error handling and transaction flow validation. Beyond upgrades, I focus on performance tuning—minimizing re-renders, improving load times, and ensuring consistent behavior across devices. If Flutter is also part of your roadmap, I can guide how to keep logic consistent across platforms while avoiding duplication. This kind of work benefits from a careful, low-risk approach rather than quick patches. I’d be happy to review your current app and outline a clear, efficient upgrade plan. Looking forward to connecting!

@WahyuSyahyundra

I have experience creating several mobile application projects using React Native, including a ticket booking app, a medication reminder app, a cashier and inventory app, and an employee payroll app.

@w3loop

With a solid 10+ years of experience in the realm of web and mobile app development, working with React Native platforms is something I excel at. I am well-versed in leveraging the latest frameworks to upgrade and enhance existing apps. My skills include a comprehensive understanding of the React Native ecosystem, hands-on expertise with API integration, RESTful services, and more. This makes me well-suited to meet the key responsibilities outlined for this project. In addition, I've delved into e-commerce extensively throughout my career, making me well-aware of the unique challenges and demands it presents. Thus, your project focusing on an e-commerce app is right up my alley! My familiarity with payment system integrations like NACH and UPI match your needs perfectly. Communication is crucial for project success, and I assure you, as your designated freelancer, I'll be here for you every step of the way. Whether it's during or after completion, I offer reliable support for any future projects or questions you might have. Let's connect, tap into my wealth of experience, and turn your app into a thriving business!

@Mabena1

Hello, I’m Mpumelelo Mabena, and I’m eager to help upgrade your e-commerce mobile app with the latest React Native version. My skill set positions me well to execute this successfully. I understand you need a clean, user-friendly app upgrade that integrates REST APIs and payment systems like NACH and UPI seamlessly. With my expertise in AI automation, web/app development, and digital solutions, I can optimize your app’s performance while maintaining and enhancing existing features. While I am new to Freelancer, I have strong real-world experience and have completed multiple successful projects off the platform. Could you share your timeline priorities and any specific pain points you hope to address?

@gopalp240

Hello, I’m a professional mobile app developer with experience building high-quality Android and iOS applications using modern technologies such as Flutter, React Native, and native development. I specialize in creating user-friendly, fast, and scalable apps tailored to business needs. I focus on clean UI/UX, smooth performance, and secure backend integration to ensure the app delivers an excellent user experience. From concept and design to development, testing, and deployment, I handle the full app lifecycle with attention to detail and timely delivery. I’m comfortable working with APIs, databases, authentication systems, push notifications, and app store deployment. I also value clear communication and regular updates to ensure the project stays on track. Let’s discuss your app idea and turn it into a powerful, reliable mobile application that meets your goals. I’m ready to get started right away. Looking forward to working with you. Best regards, Gopal Pareek