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I’m days away from launching my Instamart-style delivery app in India Locally to Andhra Pradesh built with Flutter (mobile) and PHP (backend). The core platform is ready; however, I now need a compact ERP layer added before we hit the stores. The original vendor’s quote for this last piece is excessive, so I’m looking for a seasoned developer who can step in, study the existing codebase, and finish the job and particularly around Andhra, Tamilnadu or Karnataka neighbourhood Scope of the module The ERP addition is focused on two areas only: • Order tracking – real-time status updates from pick-up through delivery, visible to both users and our dispatch panel. • Customer management – a lightweight CRM view to see purchase history, contact info, and basic analytics inside the admin dashboard. There is no data migration involved; you’ll be working with fresh data generated after go-live. Tech environment Flutter (latest stable), PHP 8 backend with a RESTful API layer, MySQL, Firebase for push notifications, and Git for version control. Everything is already containerised for staging and production. Deliverables 1. Fully integrated ERP sub-module covering the two features above, wired into existing UI/UX on mobile and web admin. 2. Clean, well-commented code committed to our private Git repo. 3. Post-integration test plan with passed results (unit + basic integration). 4. Quick hand-off notes so my in-house team can maintain the new layer. Acceptance I’ll review the feature flow on staging, run through the test plan, and sign off once no critical bugs remain. Timeline is tight, but the scope is clear. If you’re fluent in Flutter and PHP and have put ERP or similar management layers on top of existing apps before, I’d love to hear how fast you can turn this around.
Project ID: 40578746
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357 freelancers are bidding on average $463 USD for this job

Hi, I understand the main risk is not the Flutter UI, but keeping order status, dispatch view, and customer history perfectly synced without disrupting the live delivery flow before launch. For an Instamart-style app, the ERP layer needs to stay lightweight, stable, and reliable, especially with staging already containerised and go-live near. My approach would be to first review the current Flutter/PHP structure and API flow, then map the order status lifecycle end to end from backend to user app and admin panel. Next, I’d add the CRM customer view with purchase history, contact details, and basic analytics, then test the full flow on staging to ensure a smooth hand-off. Key work areas: Review current Flutter/PHP architecture Map order status flow end to end Build CRM/admin customer view Connect Firebase updates where required Test critical ERP screens and API responses I have experience delivering integrated app and backend workflows and can focus on keeping the system stable during the final stage of launch. If you already have the exact order status list and CRM fields, I can follow that; otherwise, I can align them with the current dispatch and admin flow.
$287 USD in 12 days
9.7
9.7

Hi there, We understand you're looking to integrate a compact ERP layer into your Instamart-style delivery app, focusing on order tracking and customer management, before its launch in Andhra Pradesh. Our team at Webbook Studio has experience with similar projects, such as integrating CRM and ERP systems for e-commerce solutions, and we're confident in our ability to deliver the required features using Flutter and PHP, given our background in mobile app development and software architecture. For instance, we've worked on a music voting mobile app using React Native and a furniture store mobile shopping app with Flutter, showcasing our versatility in mobile technologies. Can you tell us more about your current project timeline and how quickly you envision this integration being completed? Feel free to message us to discuss the details! — Webbook Studio
$260 USD in 10 days
9.2
9.2

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need to integrate an ERP layer into your Instamart-style delivery app in Andhra Pradesh. My background in developing high-security FinTech systems and scaling applications for over 1 million users directly applies to the complexity of your project. For strategic insight, I recommend utilizing a microservices architecture to ensure scalability and maintainability of the ERP module. In a similar project, I successfully integrated a CRM system for a high-volume e-commerce platform, showcasing my ability to handle such challenges. I encourage you to reach out to discuss further how I can expedite the integration of the ERP sub-module into your app. Let's collaborate to streamline your delivery operations efficiently.
$600 USD in 20 days
9.1
9.1

With expertise in Flutter, PHP, and ERP integration, I aim to streamline operations for your Instamart-style delivery app by enhancing it with a compact ERP layer. I'm keen to ensure data security and scalability align with your long-term strategy. By collaborating closely with your Andhra Pradesh team, I'll expedite integration without compromising quality, focusing on stability and performance. Let's align on deployment, support needs, and future expansions for sustained success.
$675 USD in 5 days
8.9
8.9

Hi there, Congratulations on preparing to launch your Instamart-style delivery app. Integrating a seamless ERP layer is crucial for efficient operations and management. I propose to develop a robust ERP solution tailored to the specific needs of your app. By leveraging my expertise in CRM, ERP systems, and RESTful APIs, I will ensure smooth integration with your existing Flutter mobile app and PHP backend. The ERP layer will facilitate streamlined inventory management, order processing, and financial operations, enhancing the overall performance of your delivery system. With in-depth experience in software architecture and mobile app development, I will make sure the solution is scalable and easy to maintain. Using Git for version control will keep the development process organized and efficient. Additionally, I will ensure the integration supports both scalability and scalability with a focus on intuitive design for a great user experience. Looking forward to helping make your launch successful. Best Regards, Khorshed Alam, RS Software
$330 USD in 9 days
9.5
9.5

Hi, This is Elias from Miami. I reviewed your project and understand your Instamart-style platform is close to launch, and you need a focused ERP layer added rather than a full system rebuild. The scope is centered on real-time order tracking and a lightweight CRM integrated into your existing Flutter app, PHP backend, and admin dashboard. The key here is fitting the ERP module into the current architecture without disrupting the existing APIs or user flows. I'd first review the codebase, then extend the REST APIs, integrate live order status updates with Firebase notifications, and build a clean CRM dashboard showing customer history, contact details, and key order insights. This keeps the implementation lightweight, maintainable, and launch-ready. I've worked on Flutter/PHP applications, delivery platforms, REST APIs, and admin dashboards where integrating new modules into an existing codebase was the priority. I have a few questions to better understand the scope: Q1 – Is real-time order tracking currently using polling, WebSockets, or Firebase, or does it need to be implemented? Q2 – Does the CRM require only customer history and analytics, or should it also support notes, tags, and customer support actions? Q3 – Approximately how large is the current codebase, and do you already have API documentation available? Looking forward to hearing from you.
$500 USD in 7 days
8.8
8.8

Hi there, ★★★ PHP Expert ★★★ I can step in and integrate the ERP layer into your existing app. I'll start by studying the current codebase to understand the architecture and ensure a smooth integration. For order tracking, I'll implement real-time updates that will be visible to both users and the dispatch panel. For customer management, I'll create a lightweight CRM view that includes purchase history and basic analytics. You can review my previous projects, client feedback, and portfolio here: https://www.freelancer.com/u/techplusintl Could you clarify if there are any specific design requirements for the admin dashboard? Happy to discuss the details.
$250 USD in 10 days
8.4
8.4

Hey I am christina, You're very close to launch, and this final ERP layer shouldn't delay it. I can quickly step into your existing Flutter + PHP codebase, understand the architecture, and deliver the remaining modules with minimal disruption. With 10+ years of experience in Flutter, PHP 8, REST APIs, MySQL, Firebase, and ERP/CRM integrations, I've worked on extending production-ready applications without requiring a complete rewrite. I'll seamlessly integrate the ERP layer into your existing mobile app and admin panel. Scope I'll deliver: * Real-time order tracking from pickup to delivery with live status updates for customers and dispatch. * Lightweight CRM with customer profiles, purchase history, contact details, and basic analytics. * Full integration with your existing UI/UX, REST APIs, MySQL, Firebase notifications, and Git workflow. * Well-documented code, unit & integration testing, and complete handover documentation. I understand your timeline is tight and can start immediately, providing regular progress updates to ensure you're ready for launch without compromising quality. Let's review the current codebase and staging environment so we can get this completed and launch on schedule. Thanks
$250 USD in 7 days
8.4
8.4

Hello I have read your project requirements, i can help you deliver the integrated ERP sub-module you need for your delivery app. With over 10 years of experience in software development, my knowledge in languages like PHP and Flutter, along my proficiency in using Git for efficient version control and API integration, would be instrumental in providing real-time order tracking and customer management features that meet your precise specifications. 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
$500 USD in 15 days
8.2
8.2

You're days from launching your Instamart-style app and need a compact ERP layer added — order tracking and a lightweight CRM — bolted onto the existing Flutter + PHP 8 REST platform without touching the core that's already store-ready. Since it's fresh post-go-live data with no migration, this stays a clean, focused integration. For order tracking I'd extend your existing order model with a status lifecycle (placed → picked → out-for-delivery → delivered), expose status-transition endpoints on the REST layer, and push real-time updates two ways: Firebase (already in your stack) for the customer's live status in the Flutter app, and a dispatch view on the web admin that reflects the same state, so users and your dispatch panel always see one source of truth. The CRM view aggregates each customer's order history, contact info, and basic analytics (order count, total spend, last-order date) as read endpoints surfaced in the admin dashboard — lightweight, no heavy ERP bloat. I work directly in your containerised staging first, commit well-commented code to your private Git repo, deliver a unit + integration test plan with passed results, and hand-off notes for your in-house team. For order status — do you want a fixed stage set, or configurable stages your dispatch team can rename/reorder later? Muhammad Saad
$250 USD in 8 days
8.1
8.1

Hello, I can help with your "Delivery App ERP Integration" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, mobile app development, software architecture, crm, erp, mysql, git, web development, restful api, flutter, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "it was great working with him, did whatever changes i asked him as per my need." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$600 USD in 12 days
8.0
8.0

Hi, I'm a senior developer with 20+ years of experience, Top Rated on Freelancer.com with 1,500+ completed projects and a 5-star record, and I've built similar ERP integrations into live delivery systems before. I'll review your Flutter mobile app and PHP backend, then add the ERP layer as a tight sub-module with order tracking and CRM features, matching your existing UI/UX flows. I'll wire the real-time status updates through Firebase for push notifications and store all data in MySQL with clean REST endpoints. The module will be containerised alongside your staging and production environments. I'll write unit and integration tests, document the changes in the repo, and include a short hand-off summary so your team can maintain it. I can start immediately and complete the integration in under a week.
$300 USD in 6 days
7.9
7.9

✔✔ Flutter ERP Module Integration for Delivery App ✔✔ Hello, I have reviewed your requirements and can seamlessly integrate the ERP module into your existing Flutter + PHP delivery platform without disrupting the current architecture. I'll implement real-time order tracking, a lightweight customer CRM within the admin panel, optimize API integration, and ensure the new module is clean, scalable, and fully tested for a smooth production launch. Flutter > PHP 8 & REST APIs > Real-Time Order Tracking > Admin CRM Dashboard > MySQL & Firebase Integration * Could you please share your current Git repository, API documentation, and staging access so I can assess the existing architecture and provide an accurate delivery timeline? Regards,
$310 USD in 12 days
8.3
8.3

Hi there, We’ve built several on-demand apps with real-time features, including a fully functional grocery delivery app that’s now live. We understand the importance of delivering a product that meets your business goals, rather than just completing tasks. We can handle both the PHP backend and Flutter frontend, ensuring seamless integration between the two. With 15 years of experience, we’ve worked with PHP versions from 5.6 to 8.2, and we’re well-versed in modern frameworks like Laravel and CodeIgniter. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best, Adil
$462.86 USD in 7 days
7.6
7.6

Hi, I can help you build a high-quality Flutter mobile application with clean UI/UX, fast performance, and scalable architecture. I have strong experience in Flutter app development, API integration, Firebase, custom backend systems, ERP/CRM integration, and eCommerce/mobile solutions. ✅ Cross-platform Android & iOS apps ✅ Clean and responsive UI/UX ✅ API & payment gateway integration ✅ Admin panel & backend support ✅ Fast communication & on-time delivery ✅ Long-term maintenance support I focus on delivering stable, user-friendly, and production-ready applications with complete client satisfaction. Let’s connect and discuss your project requirements in detail. Thanks, Ambient Infotech
$500 USD in 7 days
7.8
7.8

Hi, I'd be happy to integrate the ERP layer into your Flutter + PHP delivery app. I can review the existing codebase and implement order tracking, customer management, API integration, testing, and clean documentation while ensuring smooth handover. Quick questions: Can you share the current app/backend architecture details? Is the staging environment and Git access ready? What is your target launch date? Looking forward to working with you! Best Regards Mukesh Thakur
$500 USD in 7 days
7.9
7.9

Hi! ~ I will help complete your ERP module and get your app launch-ready. I have experience with Flutter, PHP, REST APIs, MySQL, Firebase, and Git, and I have worked on integrating new modules into existing applications without disrupting the current functionality. I can implement the real-time order tracking and customer management (CRM) features, integrate them with your existing mobile app and admin panel, and ensure everything is thoroughly tested before launch. I will deliver clean, well-documented code, a test report, and hand-off documentation so your team can maintain the system easily. Estimated timeline: 7–10 days (after reviewing the codebase). I am available to start immediately and would be happy to discuss your project in more detail. Looking forward to hearing from you. Regards.
$750 USD in 7 days
7.6
7.6

Adding real-time order tracking this close to launch is usually where existing APIs and push notifications fall out of sync, so the first thing I'd verify is how your current order state moves through the PHP API before extending it into the ERP layer. Since the platform is already built, I'd focus on fitting the ERP into what's there instead of introducing parallel logic. The tracking flow would keep a single source of truth for order status, with Firebase notifications triggered from confirmed backend state changes rather than the app itself. For the CRM side, I'd build a clean admin view around purchase history, contact details, and the analytics you've outlined, keeping the data model simple since everything starts fresh after go-live. One question: does the dispatch panel already receive live updates, or will that real-time layer be introduced as part of this module? If the existing codebase is structured well, this can be added without disrupting the launch flow.
$500 USD in 7 days
7.2
7.2

Hello, I am interested in your project for integrating an ERP layer into your delivery app built with Flutter and PHP. I have a strong expertise in Flutter, Mobile App Development, MySQL, PHP, CRM, ERP, RESTful API, and Software Architecture, making me well-suited for this task. I understand the requirements for adding order tracking and customer management functionalities to your app. I plan to study the existing codebase thoroughly, integrate the ERP sub-module seamlessly, and ensure smooth functionality across both mobile and web admin interfaces. My experience in similar projects and familiarity with the specified tech environment will enable me to deliver high-quality results efficiently. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I look forward to discussing this project further with you to understand your specific needs and provide a tailored solution. Best regards, Warda Haider
$250 USD in 4 days
6.8
6.8

Your Firebase push setup will bottleneck once you hit 500+ concurrent orders because real-time tracking at scale needs WebSocket fallback, not just FCM polling. Without a queue layer between your PHP backend and the delivery status updates, your dispatch panel will lag by 15-30 seconds during peak hours. Quick questions - are you handling order state transitions with database triggers or application-level logic? And what's your current API rate limit strategy for the Flutter app when drivers update GPS coordinates every 5 seconds? Here is the architectural approach: - PHP 8 + RESTFUL API: Build a lightweight event-driven order pipeline that pushes status changes to Firebase and logs state history in MySQL without blocking the main request thread. - FLUTTER + MYSQL: Wire the CRM dashboard to pull customer analytics via indexed queries on order history, ensuring sub-200ms load times even with 10K+ user records. - GIT + SOFTWARE ARCHITECTURE: Refactor the existing codebase to separate ERP logic into a standalone module with clear interfaces so your in-house team can extend features without touching core delivery logic. I've built similar real-time tracking systems for 2 hyperlocal delivery platforms in Bangalore that scaled from pilot to 2000 orders per day. Let's schedule a 20-minute call to walk through your current API structure before you commit to a build timeline.
$450 USD in 10 days
6.9
6.9

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