Enhancements & Bug Fixes for React Native Mobile App with Node.js Backend (MongoDB CosmosDB)

@ashinnd84

Hello there, we are a team and experts in Full stack developer, Javascript, Azure, cloud computing, DevOps. Please, send me a message to discuss the work and finish in no time. Thanks Ashish Kumar.

@humanspdy

Hello, AppITron Solutions brings 10 years of expertise delivering full-stack solutions with React Native, Node.js, Express, and MongoDB, including CosmosDB on Azure. We specialize in debugging, optimizing backend APIs, and enhancing mobile app performance to deliver seamless, scalable applications. We will thoroughly analyze your React Native app and Node.js backend to identify and fix bugs, improve UI/UX responsiveness, and optimize MongoDB queries for faster data retrieval. We ensure smooth API integration and maintain code quality with comprehensive testing (unit, integration, UAT). Our approach emphasizes maintainability and scalability, backed by version control (GitHub/Bitbucket) best practices. Could you share the list of critical bugs and enhancement specs? What’s your current testing and deployment setup? Are there any specific performance benchmarks or user experience goals you aim for? Let’s connect to discuss your project details and ensure a successful delivery. Profile: https://www.freelancer.com/u/humanspdy Best regards, Swati Sharma

@waleeds05

Hi there, I can enhance your React Native mobile app and fix existing bugs while ensuring smooth integration with your Node.js backend and MongoDB/CosmosDB database. From UI/UX improvements to performance optimization and backend fixes, I’ll deliver a stable and high-performing solution. Share your app details and issues — I’ll handle the updates with precision and care. Best regards, Waleed Saleem

@rabeeb3

As an experienced full-stack developer with deep expertise in React Native, Node.js, and MongoDB (including Azure CosmosDB), I am confident in my ability to successfully deliver on all aspects of your project. I understand the importance of a well-functioning and highly-responsive mobile app, especially when paired with a backend API, and I am committed to bringing yours to peak performance. Over the years, I have developed a proficiency for debugging, troubleshooting, and fixing performance issues that would be greatly beneficial to your project. Aside from bug fixes and enhancements, I pride myself on delivering clean, well-documented code that adheres to the highest standards of scalability, maintainability, and overall quality. My familiarity with REST API integration will surely facilitate smooth collaboration between the frontend and backend components of your app - ensuring a seamless user experience is always at the heart of my work. In addition to my technical skills, I am an effective communicator who can work independently with minimal supervision. This means you can trust me

@osamariasat

To enhance the performance and fix the bugs in your React Native app, I recommend starting with the debugging process of your existing Node.js + Express APIs. This will help in identifying any backend bottlenecks affecting the mobile experience. With over 5 years of experience in full-stack development, I have a strong background in React Native, Node.js, and MongoDB, including Azure CosmosDB deployment. I prioritize code quality and am skilled at implementing enhancements that improve both functionality and user experience. I will also conduct thorough testing to ensure all features are seamlessly integrated and perform optimally. If you’re ready to discuss how I can help streamline your application and resolve current issues, please let me know.

@Rupal878

Hello there, I’m a full-stack dev focused on React Native (Android/iOS) + Node/Express with hands-on MongoDB/CosmosDB and Azure. I can quickly triage your bug backlog, profile the app/API, and ship fixes that boost performance and stability. Plan: reproduce & log issues, add unit/integration tests, optimize queries with proper indexes/aggregations, tighten REST contracts, and polish UI/UX responsiveness. I’ll keep code clean, typed (TS), and Git-driven with clear PRs. Proactive updates, fast turnaround, minimal oversight. Deliverables: critical bugs resolved, features per spec, optimized API, docs, UAT-ready build.

@kamrana118

Hi there, You’re looking for a skilled full-stack developer to debug, optimize, and enhance your React Native mobile app and Node.js + Express backend, while ensuring smooth MongoDB (CosmosDB) performance. I understand the importance of stabilizing the current build, improving responsiveness, and adding new features without disrupting existing functionality. With experience in React Native (iOS & Android), Node.js + Express APIs, and MongoDB/CosmosDB optimization, I’ve worked on end-to-end mobile and backend systems that required both bug fixing and performance tuning. I focus on: Debugging and resolving frontend/backend integration issues Optimizing MongoDB queries for speed and reliability Implementing new features while maintaining clean, scalable code Fixing UI/UX inconsistencies to improve user experience Conducting full testing (unit, integration, and UAT) before deployment I can ensure your app is not only bug-free but also more efficient, responsive, and ready for future growth. I’d be happy to review your current codebase and propose a step-by-step action plan. Best regards, Syed Kamran A.

@JaundreLieb

I am available immediately you only pay if you are happy. I understand the need to fix existing bugs, optimize performance, and add enhancements to your React Native mobile app and Node.js + Express backend API. With expertise in React Native, Node.js, MongoDB, and integration, I ensure seamless functionality and a professional finish. While I am new to Freelancer, I have ample off-site experience in similar projects. If you are not satisfied or have any pending issues, you do not pay. I would love to chat more about your project! Regards, Jaundre Liebenberg

@promubashar

Hi, Hope you are doing great. I checked the job description carefully and just made sure that I could be a perfect fit for this project based on my skills & prior experiences in web development. I am a full stack web developer with more than +10 years of experience and mastered various programming languages. I have full-time availability right now and can start immediately. Thank you,

@bhavnatech

Hhi I am experienced in this and I can start right now but i have few doubts and questions lets have a quick chat and get it started waiting for your replyyy ! r

@Bianstrydom

I am a perfect fit for your project because you're looking for a clean, professional, and user-friendly website with seamless functionality and integrated automation — exactly what I specialize in. I offer web development, design, content writing, and branding services with a strong focus on clean code, intuitive layouts, and smooth user experiences. While I am new to freelancer, I have tons of experience and have completed projects off-site. I would love to chat more about your project! Regards, Bian.

@GfxTalent

Hello OneTraverse2023 , We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on Job Skills. Please come over chat and discuss your requirement in a detailed way. Regards

@dwaynevdwalt

I am a perfect fit for your project as an experienced full-stack developer. I specialize in React Native, Node.js, Express, MongoDB, and Azure CosmosDB. While I am new to freelancer, I have tons of experience and have done other projects off site. I have a strong understanding of the React Native mobile app, Node.js APIs, and MongoDB database. I guarantee clean, professional, and responsive code that integrates seamlessly between the frontend and backend. I would love to chat more about your project! Regards, Dwayne