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My KajNow mobile app is already live on iOS and Android; its screens and user flows are in place but the actual booking engine is still missing. Your task is to build that engine, wire it into the current user and provider apps, and hook everything up to the existing admin panel and backend so the whole experience feels native and seamless. Here is the flow that has to work from day one: a customer creates an order, the chosen provider instantly receives it, status updates propagate in real time, and either the customer or the provider can cancel at any stage. Every key event—order creation, acceptance, rejection, start, completion, or cancellation—must trigger push, email, and SMS notifications. Deliverables 1. Booking module fully integrated with the current iOS, Android, and web-based admin projects. 2. Notification logic connected to Firebase Cloud Messaging (push) plus our existing email and SMS gateways. 3. Cancellation flow with proper role permissions for both customers and providers. 4. Clear, commented code and a brief hand-over document outlining setup, endpoints, and future extension points. 5. End-to-end test cases that show order creation, acceptance, cancellation, and status updates across all roles. I will provide the current source code, API documentation, and UI assets as soon as we start. Let me know how you plan to approach the integration and the timeline you need to deliver a production-ready booking system.
Project ID: 40467939
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256 freelancers are bidding on average £499 GBP for this job

Hello, Good Day! I’m very interested in integrating the booking engine into your live KajNow iOS, Android, provider, admin, and backend systems. I understand the key requirement: customers create orders, providers receive them instantly, real-time status updates sync across all roles, and push, email, and SMS notifications trigger for every booking event. At Imara Software Solutions, we have strong experience with mobile app integrations, backend APIs, Firebase Cloud Messaging, SMS/email gateways, admin panels, and role-based workflow logic. I can build the booking module, connect it with your existing apps and backend, implement cancellation permissions, and ensure smooth order lifecycle handling from creation to completion. I will also provide clean commented code, endpoint/setup documentation, and end-to-end test cases covering order creation, acceptance, rejection, cancellation, status updates, and notifications. My focus will be a production-ready integration that feels native within your current app flow. I’d be happy to review your source code and API structure to plan the best implementation approach. Kind Regards, Rinsad
£500 GBP in 7 days
9.7
9.7

⭐⭐⭐⭐⭐ Proposal for KajNow Booking System Integration: CnELIndia team is ready to build and integrate the complete booking engine into your live iOS/Android apps and admin panel for seamless native experience. Key Understanding: We will implement real-time order creation, provider assignment, status updates, and bidirectional cancellations with role-based permissions, plus full notifications via FCM push, email, and SMS gateways. Our Approach: Review provided source code, APIs, and UI assets. Develop backend booking module in PHP with real-time capabilities. Integrate with existing mobile apps and admin backend. Implement notification logic and secure cancellation flows. Add commented code, handover docs, and comprehensive end-to-end tests. How CnELIndia Team Helps: Our experts in PHP, iOS/Android, backend, and API integration will ensure smooth delivery. We handle full-cycle development, testing, and deployment support for production readiness. Timeline: 4-5 weeks from code access to go-live, with weekly demos. This ensures reliable, scalable booking from day one. Let's start! (748 chars)
£500 GBP in 7 days
9.0
9.0

Hello, Being one of the largest web service provider companies in Pakistan, we have successfully delivered numerous projects with complex backend integrations, exactly like the one you are seeking. Our wealth of experience in mobile app development, especially for iOS and Android platforms, combined with our strong PHP skills, assures you of a seamless integration for your KajNow booking system. Handling and transmitting real-time data is our forte. We understand the value of instant communication when it comes to a booking system. That's why we are well-versed in working with notification systems like Firebase Cloud Messaging and email/SMS gateways precisely as you require. This ensures that both your customers and providers stay updated swiftly at every key stage. Moreover, our commitment to quality is further exemplified by our comprehensive end-to-end testing approach. As part of this project, we will design detailed test cases to showcase order creation, acceptance, cancellation, and status updates across all user roles. These will not only demonstrate the functionalities but also ensure they work robustly in a live environment. As always, we'll provide clear and commented code so your future team can easily extend and maintain the system. To conclude, choosing us means working with a team that believes in exceptional customer service and aims to add that "WOW" factor to all projects. We understand your vision for a seamless Thanks!
£450 GBP in 3 days
8.6
8.6

Hi - Elias here from Miami. The core challenge with integrating a booking system into your already live KajNow mobile app lies in ensuring seamless API integration while maintaining user experience across platforms. This involves critical decisions around state management, data consistency, and handling user permissions effectively. What matters most here is the reliability of the booking workflow. Common pitfalls include improper error handling during transactions and race conditions when multiple users attempt to book simultaneously. Scalability will also be a concern; we need to ensure that the system can handle peak loads without degrading performance. For the architecture, I recommend a microservices approach for the booking functions, allowing for independent scaling and easier maintenance. Utilizing a robust backend built on PHP will facilitate efficient data processing and API response handling. Implementing caching strategies will further enhance performance, particularly for frequent read operations. The hardest part to get right early will be the state management between the app and the booking system, ensuring that users receive real-time updates without lag. As a follow-up, how do you envision handling user notifications post-booking? This could influence the overall architecture and integration points. Looking forward to discussing this further.
£500 GBP in 5 days
8.6
8.6

Hey, I will build the booking engine — order creation, real-time status propagation, and cancellation flows — and wire it into your existing iOS, Android, and admin panel codebases so it fits naturally within the current architecture. For real-time status updates, I will use Firebase Realtime Database listeners alongside FCM push notifications. This dual approach ensures the UI reflects state changes instantly without polling, while push notifications still reach users who have backgrounded the app. Notification logic for email and SMS will hook into your existing gateways with a unified event dispatcher — one trigger point per status change, three delivery channels. Questions: 1) Is the backend Node.js, Laravel, or another stack — and is there an existing WebSocket or real-time layer? 2) Do cancellation rules differ by timing (e.g. Ready to start whenever you are. Kamran
£283 GBP in 13 days
8.5
8.5

Hi there, Since your UI screens and user flows are already live, I can jump straight into the backend architecture and focus entirely on making the booking engine robust and fast. A live app cannot afford lag or missed notifications, so the priority is setting up a solid real-time sync layer. I will build the order lifecycle using a strict state machine on your backend—likely using WebSockets or Firebase database listeners—so that status updates propagate instantly between the customer, provider, and admin panel. When an order changes state, the system will immediately trigger your FCM, email, and SMS gateways, so I will also build the cancellation logic with clear role permissions to prevent any data conflicts. So once you provide the current source code and API documentation, I will start with the backend schema mapping and endpoint design. From there, I will wire the logic into your existing frontend apps and finish by writing end-to-end test cases to prove everything works across all roles. I can deliver this production-ready booking system within 2 to 3 weeks. Let's connect on chat so I can review your repository and we can get moving. Best regards, Rahul A.
£340 GBP in 7 days
8.6
8.6

Hi, I can build and integrate the complete KajNow booking engine into your existing iOS, Android, and admin ecosystem while keeping the experience seamless and production-ready. My approach: • Analyze the current mobile apps, APIs, and admin architecture • Build the booking/order lifecycle module end-to-end • Implement real-time order/status propagation using Firebase/socket architecture • Integrate push notifications (FCM), email, and SMS triggers • Add role-based cancellation logic for customers/providers • Ensure synchronization across apps + admin panel in real time Features covered: • Order creation & provider assignment • Accept / reject / start / complete workflows • Customer & provider cancellation permissions • Real-time status updates • Push + Email + SMS notifications for every event • Clean API integration and scalable backend structure Deliverables: • Fully integrated booking engine • Commented clean codebase • Setup + endpoint documentation • End-to-end tested workflows • Handover guide for future extension I’m comfortable working with existing codebases and production systems and can move quickly once source code and API documentation are shared. Best regards, Rizwan LA
£500 GBP in 7 days
8.1
8.1

I can integrate a complete real-time booking engine into your existing KajNow iOS, Android, and admin platform without changing the current UI/UX flow. The system will support end-to-end booking lifecycle management including order creation, provider assignment, acceptance/rejection, live status tracking, cancellations, and completion workflows with synchronized updates across all apps and the admin panel. The implementation will include Firebase Cloud Messaging integration for push notifications, along with email and SMS event triggers for every major booking action. I will also build secure role-based cancellation logic for both customers and providers, real-time status synchronization, API integration with the existing backend, and full testing across all user roles. Deliverables include: • Fully integrated booking module • Real-time order and status updates • Push, SMS, and email notification workflows • Role-based cancellation handling • Clean documented code and API flow documentation • End-to-end test cases for all booking scenarios Estimated delivery timeline: 2–4 weeks depending on the current backend architecture and API readiness.
£500 GBP in 7 days
8.4
8.4

Hello!!----I can build and integrate the missing booking engine into your KajNow app across iOS, Android, and the admin panel, ensuring smooth real-time flow between customers and providers. The system will handle order creation, updates, cancellations, and full notification triggers via push, email, and SMS. I’ll also make sure the code is clean, well-documented, and fully testable, so the whole booking process feels seamless and production-ready from day one. Let me know the current stack so I can suggest a clear integration plan and timeline.
£451 GBP in 5 days
8.1
8.1

Hi, I have 6+ Years experience in Mobile app development. I will develop this Booking system in your mobile app with an option for porivde to configure available days/time slots, User can select date/slot and send notifications to Provide, admin. I will implement real-time status updates, push notifications, email alerts, and SMS notifications for key events. Once completed, I will ensure proper role permissions for cancellation flows and provide clear, commented code with detailed documentation. Let's discuss this project further. Regards, Sai Bhaskar
£250 GBP in 6 days
7.8
7.8

------ KajNow Booking Engine Integration for iOS, Android & Admin Platform ----- Hi, I checked your requirements and your mobile apps and core UI flows are already live, and the main requirement now is building and integrating a robust real-time booking engine that connects customers, providers, and the admin platform seamlessly while maintaining a native experience across iOS, Android, and backend systems. Workflow: Customer Creates Booking → Provider Receives Request Instantly → Accept/Reject Flow → Real-Time Status Updates → Start & Completion Tracking → Notifications Triggered Across All Channels → Cancellation Handling & Admin Synchronization. My approach would start with auditing the existing architecture, APIs, notification services, and database structure to map the booking lifecycle cleanly across all applications. Then I’d implement the booking orchestration layer, real-time event handling, notification triggers, and cancellation permissions while ensuring minimal disruption to the current apps and admin workflows. Lets connect... Thanks
£280 GBP in 7 days
8.2
8.2

Hi, I can integrate a complete real-time booking engine into your existing KajNow iOS, Android, and admin systems without disrupting current flows. I’ll implement order creation, provider assignment, live status syncing, cancellation permissions, and event-driven notifications using Firebase Cloud Messaging plus your existing email/SMS gateways. My approach includes API integration, booking state management, secure role-based actions, real-time updates, and full end-to-end testing across customer, provider, and admin panels. Clean, documented, scalable code will be delivered with setup notes and extension points for future upgrades. Estimated timeline: 2–3 weeks for production-ready delivery and testing.
£450 GBP in 20 days
7.5
7.5

Hi I can build and integrate the missing booking engine into the existing KajNow iOS, Android, admin panel, and backend so the full order flow works smoothly across all roles. The main technical challenge is keeping customer, provider, and admin states synchronized in real time while preventing invalid cancellations, duplicate status changes, or missed notifications. I would solve this with a clear booking state machine, role-based permissions, backend validation, real-time status updates, and event-driven notification triggers for push, email, and SMS. My experience includes mobile app integration, backend APIs, Firebase Cloud Messaging, order workflow logic, admin dashboards, notification gateways, and end-to-end testing. The module can cover order creation, provider acceptance/rejection, start, completion, cancellation, and full notification handling for every key event. I would also add clean endpoint documentation, commented code, setup notes, and test cases so the booking system can be maintained and extended later. Before implementation, I would review the current source code and API structure to align the booking engine with your existing architecture instead of forcing a separate workflow. Thanks, Hercules
£500 GBP in 7 days
7.3
7.3

Hi, We at Doomshell Software Pvt. Ltd., with 20+ years of experience, specialize in building real-time booking and marketplace systems integrated across mobile apps and backend platforms. Your requirement to embed a seamless booking engine into KajNow aligns perfectly with our expertise. We can develop a robust order lifecycle—from creation to completion—with instant syncing between customer, provider, and admin systems. Our approach: • Scalable booking engine with real-time status updates • Clean API integration with your existing backend • Firebase-based push notifications + email/SMS triggers • Secure cancellation flow with role-based permissions • End-to-end testing across all user journeys • Well-documented, maintainable codebase We focus on making the system feel native, fast, and reliable across all touchpoints. Quick questions: • Is your backend currently REST-based or using WebSockets for real-time updates? • Do you have preferred SMS/email providers, or should we optimize this layer as well? We’re ready to integrate this into a production-ready system efficiently. Best regards Doomshell Team
£500 GBP in 7 days
7.5
7.5

As an accomplished Full Stack Developer and Software Engineer, I've successfully implemented solutions across various industries. My work philosophy aligns perfectly with your project needs. I emphasize delivering scalable, high-performing digital products with a focus on intuitive user experiences. And that's precisely what you're seeking to complement your KajNow mobile app. Having handled similar projects, the integration of your booking engine into the user and provider apps won't be an issue. I'm conversant with Firebase Cloud Messaging for push notifications and experienced with email and SMS gateways which will ensure timely delivery of notifications at every event. Not only am I versed in the core technical skills needed such as Android, iOS Development, iPhone, Mobile App Development, and PHP; but I also possess crucial supplementary skills such as CI/CD pipelines that will streamline the deployment process for you. My agile management style ensures flawless communication and an open feedback loop throughout the development process so that your satisfaction is guaranteed at every stage. Allow me to assure you that when it comes to choosing a professional who can seamlessly integrate your booking system, you won't find anyone more proficient and committed than me.
£400 GBP in 14 days
7.1
7.1

Hi, I can build and integrate the complete real-time booking engine for KajNow across your existing iOS, Android, and admin systems while ensuring a smooth and fully connected experience between customers, providers, and admins. I have strong experience in booking systems, real-time order workflows, Firebase notifications, API integrations, and scalable backend development. I can seamlessly connect the booking flow with your current apps and backend without disrupting the existing UI/UX. My implementation approach: • Develop a robust booking/order management engine • Integrate real-time status synchronization between customer, provider, and admin panels • Implement order lifecycle handling: create, accept, reject, start, complete, and cancel • Connect Firebase Cloud Messaging, email, and SMS notifications for every critical event • Build secure cancellation flows with proper role-based permissions • Perform end-to-end testing across all user roles and devices Deliverables will include: • Fully integrated production-ready booking system • Clean, commented, and maintainable source code • API and setup documentation for future scalability • Complete test cases and deployment support Estimated timeline: 2–4 weeks depending on current backend structure and API readiness. I’m ready to review your existing source code and begin integration immediately. Best regards, Kumar
£500 GBP in 7 days
7.2
7.2

Hello, With 4 years of experience in Mobile App Development, PHP, API Integration, Backend Development, and iOS Development, I am well-equipped to handle your project. I understand the requirements for integrating a booking system into your KajNow mobile app, including real-time status updates, push notifications, and cancellation flows. I am confident in my ability to deliver a seamless experience for both customers and providers by integrating the booking module with the existing iOS, Android, and web-based admin projects, setting up notification logic, implementing cancellation flows, and providing clear, commented code with end-to-end test cases. I have thoroughly reviewed your project requirements and am ready to discuss further details in chat. Looking forward to collaborating on this project. Best regards, Taimoor from Pixels Soft
£500 GBP in 7 days
6.7
6.7

Hey, i will build and integrate a complete real-time booking engine into your existing KajNow iOS, Android, and admin platform with seamless order creation, provider assignment, live status tracking, cancellation handling, and notification workflows across all user roles. I will professionally connect the booking flow with your current backend, Firebase push notifications, email/SMS gateways, and admin panel while keeping the experience fully native and scalable. Clean commented code, test cases, and proper handover documentation will also be provided for smooth future expansion. What timeline are you targeting for the production-ready launch after source code handover? Portfolio: https://www.freelancer.pk/u/zainalitariq245 I am ready to review the current codebase and start integration immediately. Best Regards: Zain Ali
£400 GBP in 10 days
6.8
6.8

Hi, We can integrate the full booking engine into your existing KajNow iOS, Android, and admin platform while keeping the experience seamless and production-ready. We can handle: • Real-time booking/order flow between customers and providers • Booking status lifecycle (accept, reject, start, complete, cancel) • FCM push notification integration • Email + SMS event notifications • Customer/provider cancellation permissions and logic • Backend/admin panel integration with existing APIs • End-to-end testing across all roles and devices • Clean, documented code with future scalability in mind We’ll first review the current source code and API structure, then map the booking workflow and integrate it cleanly into the existing architecture instead of rebuilding unnecessary components. We’re experienced with real-time mobile platforms, booking systems, and multi-role app workflows and can start immediately after access is shared. Regards, Interconnect Team
£500 GBP in 7 days
6.8
6.8

Hi, The trickiest part of dropping a booking engine into KajNow won't be the order flow itself — it'll be keeping status updates propagating in real time across the customer app, provider app, and admin panel without race conditions when both sides can cancel at any stage. That needs a single source of truth on the backend with socket or FCM data-message fanout, not just notification pings. How I'd approach it: - Booking state machine on your existing backend (created → accepted → started → completed, with cancel branches and role-checked transitions) - FCM data messages for live status sync + visible push, alongside your current email and SMS gateways - Role-gated cancellation endpoints so a provider can't cancel a completed job, etc. - Postman collection + end-to-end test cases covering all roles I've shipped booking and order flows in React Native and Flutter wired to PHP backends before, so plugging into your current source code and API docs should be straightforward once I see them. One question: is the existing backend PHP (Laravel?), and does it already expose REST endpoints for orders, or am I building those too? That changes the timeline meaningfully. Asif
£750 GBP in 5 days
6.4
6.4

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