Customize React Native App & Develop Backend

@infowider11

Full-Stack React Native Driver App & Node.js Backend I can customize your existing React Native driver app for iOS and Android with rebranded UI, real-time job flows, GPS tracking, and push notifications. I will build a secure Node.js REST API with JWT authentication, full CRUD endpoints, and proper error handling. The backend will integrate seamlessly with your existing PostgreSQL database using Prisma or Sequelize, ensuring optimized relational operations. Let’s chat… Thanks

@corpmember29

Hello!! I have carefully reviewed your requirement for customizing the React Native driver app and building a Node.js backend integrated with PostgreSQL. I have 10+ years of experience in React Native, Node.js, and scalable API development, and have previously delivered on-demand/driver-based apps with real-time tracking and push notifications. I will handle UI customization, new screen development, real-time job flows, GPS tracking, and FCM/APNs integration on the app side. For backend, I will build a secure REST API (Node.js + Express/Fastify) with JWT authentication, optimized PostgreSQL integration (Prisma/Sequelize), and clean architecture with proper validation, logging, and testing. Milestones will include: app customization → backend APIs → DB integration → real-time features → testing & deployment support. Code will be clean, documented, and delivered via Git with API docs (Swagger/Postman). I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I am ready to start immediately and can share relevant work examples upon request. I eagerly await your positive response. Thanks.

@vbcool7

With over 7 years of experience as a mobile and web developer, I have successfully delivered numerous projects which involved exactly what you are looking for. My expertise extends to all the technologies and skills outlined in your project description: Mobile Development, Web Development, Database Management (including PostgreSQL), User Experience and User Interface Design, API Integration, Quality Assurance, and Version Control systems like Git. One of my stand-out qualities as a developer is my knack for identifying with client's unique needs. That relationship begins during the application development lifecycle where I clearly communicate to understand your goals, then integrate them into a customized solution that fits perfectly. Punctuality is also paramount to me. I am dedicated to meeting project deadlines and ensuring prompt delivery. Choosing me means choosing affordability without compromising on quality. I offer competitive pricing models that always provide excellent value for your investments. To add more confidence to your choice, you can examine my robust portfolio which includes successful completion of projects similar to yours. Needless to say, this pitch would be incomplete without underlining my proficiency in Mobile App Development (native and cross-platform), Node.js and REST API development which aligns perfectly with your project demands.

@sunainawbst

Hello, I’m a senior mobile app developer with 9+ years of experience building high-performance iOS and Android applications using React Native, Flutter, Swift, and native Android. I specialize in scalable architecture, smooth UI/UX, API integration, and store-ready deployments. I’ve successfully launched multiple production apps across Google Play and App Store, delivering secure, optimized, and user-friendly solutions. ⭐Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. I’d be happy to discuss your requirements and execution plan. Bid amount is a placeholder and can be discussed over chat. Thanks & Regards Ranjana

@planDapps

DRIVER CENTRIC LOGISTICS: REACT NATIVE CUSTOMIZATION & NODE.JS ARCHITECTURE Transforming a template into a high performance driver tool requires a "security first" Node.js backend and a jitter free React Native frontend. At Plan D Studios, we have 12+ years of experience in custom software and mobile app development, specializing in real time logistics and PostgreSQL integration. We prefer the Bare Workflow for driver apps to ensure deep access to native location modules for stable GPS tracking. Our Proposed Milestones: API & DB Layer: Building the REST API with Express/Prisma, mapping to your existing schema, and implementing JWT auth. UI/UX Rebrand: Customizing the React Native screens, implementing status logic, and branding. Real time Services: Integrating FCM notifications and background GPS tracking. Testing & Handoff: E2E testing, Swagger documentation, and cloud deployment. We handle all Full Stack Development in house no outsourcing. We’ve delivered similar driver ecosystems where data integrity and low latency status updates were the highest priorities. For your existing PostgreSQL schema, are we utilizing any stored procedures for job assignments, or should all logic reside within the Node.js service layer? Regards, Haider

@Microlent

Hello, We carefully reviewed the description of your project and can confirm that we fully understand your requirements. We are very interested in customizing your React Native driver app and building a robust Node.js backend integrated with PostgreSQL. With over 25 years of experience, our team has strong expertise in React Native (Expo & bare), Node.js (Express/Fastify), PostgreSQL, and real-time systems. We have built driver/logistics-style apps with live job assignment, GPS tracking, push notifications (FCM/APNs), and secure JWT-based authentication. Relevant Experience: We have developed delivery/driver apps with real-time order flows, earnings dashboards, and backend systems handling job allocation, status updates, and location tracking integrated with PostgreSQL. Questions: • Will real-time updates use WebSockets or polling? • Any preferred cloud for backend deployment? We ensure clean architecture, optimized queries, full API documentation, and smooth deployment-ready delivery. Please review our profile here: https://www.freelancer.com/u/Microlent We would be happy to discuss your project in more detail via Freelancer chat. Best regards, Jasmin

@kareemmaize

Hi there To turn your existing mobile base into a dependable driver app, the most critical part is aligning the React Native flows with your real operational logic while building a backend that fits the existing PostgreSQL structure cleanly. I’ll approach this by first mapping the driver workflows against your current schema, then building the Node.js API and mobile customizations in parallel so job assignment, status updates, push alerts, and GPS tracking work as one connected system. This ensures the app feels reliable in daily use, not just functional in isolated screens. This means I understand how to take an existing app foundation, adapt it to business-specific workflows, and support it with a secure, deployment-ready backend. My process is simple: review the current app, DB, and workflows → build and connect the API layer → customize mobile flows and real-time actions → test critical paths on both platforms and deliver full handoff. I’m ready to begin with a technical audit and milestone breakdown immediately..

@OutsourceMan

⭐⭐⭐⭐⭐ My name is Raman, the founder of CnELIndia - a premier web and app development enterprise. We breathe React Native, Node.js, and PostgreSQL. Our 18 years in the industry with over 743 happy clients establishes proof of our expertise and dedication. To begin with, we completely understand the scope of your project; adapting an existing React Native UI and establishing a new Node.js backend connected to a PostgreSQL database. Precise UI redesigning, real-time job updates, GPS integration, push notifications - we're on top of everything! We'll also ensure your native mobile drivers app runs seamlessly on iOS and Android devices. Our experience in delivering full-stack projects aligns perfectly with your requirements. We'll create a fully functional app for both iOS & Android using best practices such as JWT authentication. The RESTful API developed using Node.js will be integrated securely with your existing PostgreSQL database without any disruptions. Our final handover includes complete documentation for every bit of code delivered, ensuring smooth deployment.

@Srashtasoft

Hi there, I have read your project requirement. You need customisation of an existing React Native driver app along with building a Node.js backend integrated with your existing PostgreSQL database, including real-time job flows, push notifications, GPS tracking, and secure API architecture. We can handle full-stack delivery using React Native (bare workflow) + Node.js (Express/Fastify) with PostgreSQL (Prisma/Sequelize), implementing JWT authentication, real-time updates (WebSockets), FCM/APNs notifications, and a clean, scalable architecture with proper testing and deployment readiness. Before proceeding, I have a few questions: =================================== Do you need real-time updates via WebSockets or is polling acceptable? What cloud/platform do you prefer for backend deployment? Are there any third-party integrations (maps, payments) required? What is your expected timeline and priority features for MVP? Best Regards, Srashtasoft Team

@jafferrox

Hi, I checked your description carefully., I have enough experience in react native. Expo has been appeared at first in react world. we can build mobile app for android, IOS but, it requires deep knowledge. I will show my skill. Kind regards, Jaffer

@zainalitariq245

Hi I have carefully reviewed your project details and understand that you already have a base React Native app and an existing PostgreSQL database and you need a full solution that includes app customization real time job handling push notifications GPS tracking and a secure Node.js backend connected to your current database. I am a top rated and highly experienced mobile app developer with a proven track record of successfully creating various high quality applications. I can customize your React Native app to match your brand and workflows while implementing real time job assignment notifications and location tracking and at the same time build a scalable Node.js backend with secure JWT authentication clean API structure and seamless integration with your PostgreSQL database. I have experience working on mobile apps with real time features backend systems and database integrations ensuring clean code proper validation performance optimization and a smooth user experience across both iOS and Android. Please Take a Look at My Professional Portfolio: https://www.freelancer.pk/u/zainalitariq245 Let's connect to discuss your project in more detail. Best Regards, Zain

@MohammedSabih

Hi, I will deliver a production-ready React Native app and Node.js backend tailored to your PostgreSQL schema. I specialize in secure JWT auth, real-time job flows, and FCM notifications. My approach ensures a high-performance bridge between your existing data and driver UI. I offer a fixed-price bid with milestone-based delivery, ensuring clean code and full deployment support.. Looking forward to hearing from you. Best, Sabih

@vishal1145

Your driver app will fail under load if the Node.js backend doesn't implement connection pooling for PostgreSQL. Without it, you'll hit max_connections errors when 50+ drivers log in simultaneously during peak hours, causing authentication timeouts and missed job assignments. Before architecting the solution, I need clarity on two things. First, what's your expected concurrent driver count during rush periods - are we designing for 100 active drivers or 1,000? Second, does your existing PostgreSQL schema already handle geospatial queries for location tracking, or will I need to add PostGIS extensions for efficient radius-based job matching? Here's the architectural approach: - REACT NATIVE + EXPO: Rebuild the driver UI using Expo's managed workflow with TypeScript strict mode to catch navigation and state management bugs before deployment, reducing QA cycles by 50%. - NODE.JS + EXPRESS: Build a stateless REST API with Prisma ORM for type-safe database queries, implementing request rate limiting to prevent abuse and Redis session storage for horizontal scaling. - POSTGRESQL OPTIMIZATION: Configure pgBouncer connection pooling to handle 500+ concurrent connections without blocking, and add composite indexes on driver_id + job_status columns to keep query response under 100ms. - FCM PUSH NOTIFICATIONS: Set up Firebase Admin SDK with exponential backoff retry logic and dead letter queues to guarantee delivery of time-sensitive job alerts even during network failures. - JWT AUTHENTICATION: Implement refresh token rotation with 15-minute access tokens and httpOnly cookies to prevent XSS attacks while maintaining seamless driver sessions across app restarts. I've built 8 driver-facing apps for logistics companies that process 10K+ daily jobs. I don't take on projects where the database schema is a black box - let's schedule a 20-minute call to review your existing tables and discuss edge cases like offline mode and GPS accuracy thresholds before I commit to a timeline.

@rbtech1984

Hi There!!! ★★★★ ( Custom driver app with full React Native & Node.js backend ) ★★★★ I understand you need your existing React Native driver app customized with rebranded UI, new screens, real-time job flows, push notifications, and GPS tracking. A fresh Node.js REST API backend will connect to your PostgreSQL database, supporting all app functionality securely, while ensuring smooth deployment and integration. ⚜ React Native app customization (iOS & Android) ⚜ Rebranding and UI updates ⚜ Real-time job assignment and status flows ⚜ Push notifications via FCM/APNs ⚜ GPS/location tracking integration ⚜ Node.js REST API development with JWT authentication ⚜ PostgreSQL database integration with optimized queries I’ve built several mobile apps with React Native + Node.js backends, integrating existing databases and real-time flows. I’ll deliver clean code, fully tested apps, and detailed deployment docs. Warm Regards, Farhin B.

@Curveballsol

Hello, I am confident I can successfully execute the customization of your React Native driver app and the development of your Node.js backend. My skills in Mobile App Development, Node.js, PostgreSQL, and React Native coincides perfectly with your project's requirements, ensuring a seamless and optimized integration between your frontend and database. Moreover, my proficiency in Git version control guarantees clean code delivery through a pristine repository, ensuring greater stability and control over your project. I'm also well-versed in Firebase Cloud Messaging (FCM), which will allow me to effectively integrate push notification abilities into your system for job alerts, as well as implement uninterrupted GPS/location tracking capabilities for an enhanced user experience. Lastly, one of my key strengths lies in my ability to understand business workflows and translate them into technical solutions. I'm committed to delivering a fully functional customized React Native app (for both iOS and Android) along with an equally comprehensive Node.js backend source code that aligns seamlessly with your PostgreSQL database. Lets Chat

@ciss26

Hello, I hope you are doing well. I understand that you are looking to build a MOBILE APPLICATION and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.

@Herculesz

Hi I have strong experience customizing React Native apps and building scalable Node.js backends with Express, PostgreSQL, JWT authentication, and real time mobile workflows such as job dispatch and tracking. A common challenge in driver apps is maintaining consistent state between mobile clients and backend when handling real time job assignments, location updates, and status transitions, which can lead to sync issues or missed events. I solve this by designing a robust API layer with clear state management, optimized queries, and event driven updates using FCM and backend validation to ensure reliable job flow. For your project, I would customize the React Native app with clean UI updates, GPS tracking, push notifications, and smooth cross platform behavior, while building a secure Node.js API connected to your existing PostgreSQL schema using Prisma or Sequelize. I also focus on structured endpoints, logging, validation, and deployment ready configuration, along with full API documentation and tested mobile flows. My stack includes React Native (Expo and bare), Node.js, PostgreSQL, and Firebase, ensuring a stable and scalable driver facing system. Thanks, Hercules

@Inventcosoftware

As a seasoned professional with over 14 years of experience, I bring a wealth of knowledge in developing cross-platform applications. My expertise in both React Native and Node.js resonates well with the customization and back-end development aspects that your project requires. Having built numerous market-ready apps, I'm confident that my experience aligns closely with what you're seeking. In addition to my comprehensive technical skills, my track record of launching successful apps coupled with a deep understanding of technical and business domains can offer significant value-add to your project. My collaborative approach involves working as not just a developer, but a tech co-founder, ensuring that your vision is efficiently realized while delivering exceptional code quality and maintainability. Furthermore, apart from React Native and Node.js proficiencies, I've had experience integrating services like Firebase for push notifications too. This puts me in an advantageous position to seamlessly manage the entire scope of work encompassing rebranding screens, implementing real-time order/job assignment flows, location tracking integration, ensuring compatibility across platforms, ORM database connections, and more. I am confident that my robust portfolio and skillset will make me an ideal candidate for your esteemed project.

@iosifpeterfi

I'm Iosif Peterfi, 15+ years delivering reliable platforms with calm leadership and a clear focus on business outcomes. This is my speciality: turning multi-layer app changes and backend integrations into a cohesive, scalable solution that keeps driver workflows smooth and business rules clear. You're looking to customize an existing React Native driver app, build a new Node.js REST API, and connect everything to your PostgreSQL database. The goal is real-time job assignments, status updates, location tracking, earnings visibility, and a solid cross-platform experience for drivers. I'll deliver a brand-aligned mobile experience, a robust backend, and a clean integration layer that minimizes risk and accelerates value. Milestones: UI adaptation and new screens; authentication and core endpoints; data access layer and migrations; end-to-end testing on iOS and Android; deployment-ready configuration and handover. You gain faster delivery, fewer rework rounds, and clearer operational data to support decision making. Recently I modernized a driver app for a logistics client. We trimmed onboarding time by 40% and cut dispatch delays by 20%. 4-6 weeks. Happy to discuss scope alignment. Let's chat - I can walk you through my approach in 15 minutes.