Web & Mobile Task Scheduler

@crtvecode

The challenge of making sure real-time sync between your web and mobile platforms is key to the success of this scheduling engine. I can set up those single codebase using Node.js and Firebase that will keep both platforms updated instantly. And I'll focus on building the intuitive UI and reliable background execution you need, making sure notifications and WhatsApp messages are dispatched accurately. I can have this ready for you to test first—only award the project once you're happy with the results, so there's really no risk on your end. My bid for this work is 14999 INR, and I'm ready to start like, immediately. Rajavel - Expert in Node.js, Python, and Firebase, and I really know what I'm doing in this area.

@softwarelinkerrs

As a seasoned professional with vast experience in both web and mobile app development, I am confident in my ability to take on your task scheduler project seamlessly. My understanding of API development and integration combined with my in-depth comprehension of Node.js and PHP ensures a streamlined, real-time synchronization between the two platforms. I am more than capable of developing an intuitive UI that enables end-users to create, edit, and cancel schedules effortlessly. One of the crucial aspects of your project is reliable background execution which is integral in ensuring notifications and WhatsApp messages are dispatched accurately and on time. My skill set in Python and Node.js allows me to set up server-side cron, queue workers, push notifications for iOS and Android - enabling successful messages even after app restarts. Additionally, my familiarity with Firebase makes me the ideal candidate for any time-zone awareness, error-logging or analytics implementation needs to assure optimum performance throughout.

@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, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise 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. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@fullstack0407

With my extensive experience as a full stack developer, specializing in crucial areas such as Node.js, Python and Firebase, your web and mobile task scheduler is well within my skill sets. I have successfully completed complex projects that demanded real-time syncing and decoded timezone calibration. Your project's expectations of having a single codebase, intuitive UI and reliability align perfectly with my understanding of advanced cron functionality and server-side queuing. I also assure you comprehensive error logging, clean documentation and data analytics for effective performance tracking. Moreover, my background in API Development further amplifies my candidacy for this project as it involves WhatsApp Business API integration. I've seamlessly integrated a wide array of APIs such as Payment gateways (PayPal, Stripe), Social Media Platforms (Facebook, Twitter) and more in the past. Additionally, I bring strength in using mainstream stacks like Node.js and Python without compromising efficiency due to contextual constraints. I am dedicated to delivering high quality work on time; let's transform your vision into a seamlessly synced reality!

@KarthikTechCon

Hello! I’m Karthik, a seasoned developer with over 15 years of experience in web and mobile applications. I specialize in creating efficient, scalable solutions, and I'm confident I can deliver the task scheduler you need. I propose to develop a lightweight scheduling engine that meets all your requirements using a single codebase for both web and mobile platforms. This will ensure real-time synchronization and a seamless user experience. Your core features will be implemented as follows: - Integration with users' preferred calendars for meetings. - Configurable reminders and fully recurring tasks. - Automated WhatsApp messaging through the Business API. I will ensure an intuitive UI, reliable background execution, time-zone awareness, and thorough documentation. Acceptance criteria will be rigorously tested to ensure everything works flawlessly. I’m comfortable with Node.js and Firebase, which I recommend for efficient development. Let’s discuss your vision and make this project a success! Best, Karthik

@nitinjohnson316

Hello, I can develop a web app and mobile app as per your requirements that you have mentioned in the project description. I will make both the web app and mobile app with good ui and design along with faster loading speed. I will make it all features that you have mentioned adding meetings to calendars, sending reminders for meetings, whatsapp messaging etc. along with dashboards and charts with good ui and export feature to export in excel sheets. Let'us discuss regarding this project more on chat.

@albertc1996

Hi — your Node.js/Python scheduling engine needs web, iOS, Android, API, recurring tasks, and real-time synchronization. I can build aligned services around authenticated APIs, queue workers, native push scheduling, time-zone handling, and WhatsApp Business API dispatch. Meetings can sync to preferred calendars, while reminders and custom recurring tasks remain reliable after app restarts. I’ll include error logging, success/failure analytics, linting, tests, deployment documentation, and a staging-to-production quick-start guide. My “Perky” taxi-booking app has handled real-time driver tracking and in-app payments across Android and iOS; related production work is here: https://www.freelancer.com/u/albertc1996. I’m comfortable with Node.js, Python, Firebase, and PostgreSQL, and I don’t rely on fragile client-only timers. It’s a focused, maintainable implementation.

@MuhammadAsad108

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Web/Mobile App → Schedule Creation → Real-Time Sync → Queue/Worker → Calendar/Push/WhatsApp API → Execution Logs → Analytics Key Highlights ✔ Shared scheduling architecture keeping web and iOS/Android synchronized in real time. ✔ Meetings with Google/Apple calendar integration and configurable reminders. ✔ Daily, weekly, and custom recurring task rules. ✔ Reliable server-side queue workers for scheduled execution. ✔ Native push notifications that remain reliable after app restarts. ✔ WhatsApp Business API integration for automated scheduled messages. ✔ Time-zone aware scheduling with daylight-saving handling where applicable. ✔ Retry/error handling, execution logs, and basic success/failure analytics. ✔ Clean API structure with idempotent jobs to prevent duplicate messages. ✔ Automated tests, linting, deployment documentation, and staging/production setup. Best Regards, Asad Full-Stack & Mobile Developer

@TechWagger2026

As a seasoned and versatile developer, I have the extensive experience and breadth of skills necessary to fulfill every core expectation outlined in your project description. My proficiency extends across all major web and mobile development platforms including Node.js, Python, Firebase, and more. Harnessing these tools effectively, I am able to create a task on one platform that instantaneously reflects on the other, a highly desirable feature you mentioned. Furthermore, my competence in building intuitive user interfaces makes it possible for me to create an easy-to-use web and mobile scheduling experience. Additionally, I am highly competent in implementing reliable background execution processes such as cron or queue workers that guarantee seamless performance and resiliency across both sides, be it web or mobile. Above all, my track record speaks volumes of my dedication to producing clean codes and optimizing for performance while considering factors like time zone consciousness, logging for errors tracking, analytics reporting for easy monitoring of key metrics among others – all these critical ingredients to ensure success for your project. Given the versatility of this project is needed not only mainstream stacks like Node.js but also Firebase etc. I have demonstrated my ability to adeptly work with any language that can help meet deadlines efficiently. Choose me; unleash the transformative potential of your application through an expert like me!

@adityakhuman006

Leveraging my extensive background as a PHP developer, I'm excited to tackle your Web & Mobile Task Scheduler project. With experience in API integration, HTML, CSS, and Firebase, I am proficient in the technology stack needed to not only meet but exceed your expectations. When it comes to efficient scheduling and backend execution - be it daily reminders or recurring tasks, I guarantee reliable performance. Your satisfaction is my driving force. One of the key areas that sets me apart is my strong base and understanding of APIs. This will definitely come in handy when integrating with WhatsApp Business API to handle automatic message dispatching. In terms of mobile development, I boast comprehensive knowledge of Android and ensuring native schedulers work seamlessly for notifications and task dispatch even after app restarts. Compliance with your acceptance criteria is foremost on my mind: instant synchronization of tasks across both platforms, correct firing of notifications and auto-WhatsApp messages without hiccups even after app restarts - these aren't issues for me. Furthermore, I not only ensure all code passes comprehensive tests but follow stringent linting checks too, leaving no room for error.

@chetanprajapat

PROPOSAL I’ve gone through the requirement carefully, and the critical part is making scheduled actions dependable outside the active app—especially recurring tasks, notifications and WhatsApp dispatch after restarts or when users are offline. I can build the scheduling layer so web and mobile remain synchronized in real time, with a clear UI for creating, editing and cancelling schedules. I’d use server-side jobs/queue workers for authoritative execution, while native mobile notifications handle the user-facing reminders. Time zones, recurrence rules, failure logging and basic delivery analytics would be built into the workflow rather than added afterward. For WhatsApp, I can integrate the WhatsApp Business API with the scheduler and track successful/failed dispatches. I’d keep the scheduling service centralized so both platforms work from the same source of truth. A relevant portfolio reference is our Video Calling App design work, alongside live mobile projects such as EduAid and Rajgarhwala Furniture. Share your preferred calendar integrations and WhatsApp API setup, and I can define the architecture and implementation milestones.

@amit719

As a highly experienced full-stack developer with over 14 years in the field, I believe I have the comprehensive skill set needed to excel in this project. My proficiency with mainstream stacks such as Node.js, Python, Laravel, PHP, and Flutter makes me adaptable to your technology environment. I guarantee clean and scalable code that is not only well-documented but easy to maintain and aligned with your business growth trajectory. Your project requirements resonate deeply with my past experiences. I've built custom web applications with complex task scheduling functionalities, REST API integrations including third-party CRM tools and payment gateways. Furthermore, my understanding of database design optimization assuring better execution performance could be of use for this mobile/web task scheduler. Time zone-awareness, error logging and delivering reliable notification services are my core expertise not to mention keeping the system running even after app restarts. Lastly but most importantly, I value long term relationships. This means not only delivering top-notch work in a timely manner but providing continued support after delivery as well. Let's collaborate to create something exceptional. I'm eagerly await an opportunity to discuss your project requirements further and provide you with an Honest estimate and timeline so we may begin soon. Thank you for considering me and have a great day!

@webexpertvicky13

I bring to the table a wealth of experience as a Full Stack Developer with a solid skill set in Node.js and Python, exactly what you need for this project. My expertise extends beyond proficiently using mainstream stacks like Node.js, Python, Firebase to building modern, scalable, high-performance web applications - which is your core expectation. Creating seamless cross-platform functionality is one of my core strengths. Using my mastery of API development and integration, I can ensure a single codebase or aligned services that keep your web and mobile applications in real time sync. Furthermore, having a great eye for detail combined with my exceptional problem-solving skills would allow me to create an intuitive user interface capable of handling scheduling complexities from meetings to WhatsApp messages dispatched automatically via the WhatsApp Business API. Notably, I prioritize delivering clean code that guarantees fast performance and secure solutions as per your needs and requirements. Given my bug fixing & performance optimization forte, time-zone awareness won't be a concern. With me on your team, you can confidently expect error-free logging, basic analytics implementation for proper monitoring plus efficient task execution even after app restarts (with proper native schedulers / push on iOS and Android). Let's build something great together - hire me for this project!

@arshig8

Hi, I’ve read all your requirements very well and I’m really excited to work on this scheduling engine. I understand the key requirement is reliable background execution with real-time web/mobile sync, timezone handling, notifications, and WhatsApp Business API automation. I can build this with a clean, scalable architecture and make the experience simple for users. Do you already have the UI/design ready? Which WhatsApp Business API provider are you planning to use? Do you prefer Node.js, Python, or are you open to my recommendation? Let’s connect on chat to discuss well. Waiting for your response. Best Regards, Arshiya

@Cruz1217

Relying on a single cron job to fire WhatsApp messages can cause missed deliveries if the server clock drifts. I'll set up a distributed queue with idempotent workers using Node.js and Firebase functions so each platform processes tasks independently. The library will be written in TypeScript and shared between the web UI and the React Native app, keeping state in sync via real-time DB. One common mistake is persisting scheduled timestamps only in local storage, which disappears after a reinstall or device wipe. That approach breaks the real-time sync requirement, so I’ll store tasks in Firebase Firestore and trigger push notifications from serverless functions. You’ll see a task created on the web appear instantly on the mobile app and notifications fire reliably even after restarts.

@Baghali1

I can build this Web + Mobile Task Scheduler using **Flutter**, allowing us to maintain a single codebase for Android, iOS, and Web. For the backend, I would recommend **Firebase**, using Firestore for real-time synchronization, Cloud Functions/Cloud Scheduler for reliable server-side task execution, and Firebase Cloud Messaging for push notifications. I can implement: * Meetings and calendar integration * One-time and recurring reminders * Daily, weekly and custom recurring tasks * Scheduled push notifications * WhatsApp Business API integration * Real-time sync between Web and Mobile * Time-zone aware scheduling * Background/server-side execution * Error logging and basic analytics * Testing, linting and documentation I will make sure scheduled tasks continue to work reliably even after the mobile app is restarted. I can also provide a clean deployment guide for both staging and production.

@milanrathod945

Real-time sync between web and mobile schedulers needs a unified backend with push notifications and timezone handling, I can build this with Node.js and Firebase for cross-platform consistency. - Built a multi-tenant scheduling system at scale (70+ tenants) with real-time sync and background workers on Azure Service Bus. - Will implement the core scheduler as a Firebase Cloud Function with timezone-aware cron triggers and WhatsApp API integration. - On Day 1 I can deploy the web task creation UI with Firebase backend so you can test cross-platform sync immediately. Do you already have WhatsApp Business API credentials or should I set up a test sandbox?

@samyak8840

Hi, I am Samyak. I can develop both web and app in same fixed amount of bid. I am happy to work on this task. I deliver similar kind of work previously also. we can connect on chatbox Thanks

@prachia77

Hi, I have reviewed your requirement for a web and mobile task scheduler. I can build the scheduling layer so tasks, reminders, meetings and WhatsApp messages remain reliably synchronized across web, Android and iOS. I would use Node.js with a centralized database and queue/worker system for dependable server-side scheduling, with Firebase Cloud Messaging for push notifications and real-time synchronization. For mobile, Flutter can provide a single codebase while keeping the scheduling experience consistent across platforms. The important part is making scheduled actions reliable even when the mobile app is closed or restarted. I’ll handle recurring schedules, time zones, background execution, retry/error handling, logging and WhatsApp Business API integration. Calendar events can also be connected through the appropriate calendar APIs. I’ll structure the system so creating or updating a schedule on web immediately reflects on mobile, while the backend remains the source of truth for scheduled execution. I’ll also provide tests, linting, deployment documentation and a staging/production setup guide. Please message me so we can discuss the existing application, preferred stack and scheduling rules, then finalize the milestones and timeline. Best Regards Prachi Webix Infotech