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Android App with Backend Requirements Document 1. Project Overview We require the development of a mobile application (Android-based) for managing orders in a manufacturing company dealing in household plastic products. The design is ready. The application will be used by: - Sales Agents - Warehouse Personnel - Contributors - Administrators The system must support: - Fast order creation and processing - Real-time order tracking - Role-based access control - Efficient warehouse workflows - Reporting and analytics 2. Scope of Work A. Mobile Application - Android app (Flutter) - UI + backend integration - Role-based login B. Backend System - PHP or Python - APIs - Database (MariaDB) - Admin Section – only reporting (CRUD Operations are not required). C. Additional Capabilities - PDF generation & sharing - Image uploads - Reports - Sync mechanism (for Products and Customers). Ordering will be online 3. User Roles Sales Agent: - Add/view customers (no edit/delete) - Create/manage orders - Product selection with quantity (+/- or manual) - View last 3 orders of customer, or last 10 days orders (whichever is more) - Sync button Warehouse: - Accept/Reject orders - Partial (multiple) and complete fulfillment - Notes mandatory for partial - Sync button Contributor: - View all orders - Manage customers - Reports access Administrator: - Full access - Reports 4. Core Modules Customer Management: - Add, view - Search + filters Order Management: - Multi-step order creation - Category → Product → Quantity Order Timeline: - Created, Accepted, Fulfilled, Completed - Invoiced or Not Invoiced - Notes and images Order Controls: - Export PDF - Share (via Whatsapp/Android) - Add notes/images - Completed orders locked Sync: - For Sales & Warehouse only Reports: - Pending Items - Customer Aging - Sales Agent Performance - Warehouse Performance 5. Data Entities Users, Roles, Customers, Products, Product Categories, Orders, Fulfillment Logs, Notes, Images, Regions, Audit Logs 6. Designs The application designs are given below. A fully functional application mockup is available on Replit (design may be different, but functionally can be used to explain the entire requirement) 7. Deliverables - Mobile App - Backend APIs - Database - Complete Working Source Code, everything remains our intellectual property - Documentation - 15 day post deployment support 8. Quote Components - Tech stack - Timeline - Cost breakdown - Hosting details
Projektin tunnus (ID): 40348772
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68 freelancerit tarjoavat keskimäärin ₹60 734 INR tätä projektia

Hello, thank you for considering my proposal for the development of an Android application with backend support for managing orders in a manufacturing company specializing in household plastic products. The project involves creating a user-friendly app that caters to different user roles such as Sales Agents, Warehouse Personnel, Contributors, and Administrators, with features like order processing, real-time tracking, role-based access control, and efficient warehouse workflows. The scope of work includes developing the Android app using Flutter, backend system in PHP or Python with MariaDB database, and additional capabilities like PDF generation, image uploads, and sync mechanism for products and customers. I am excited about the opportunity to work on this project and deliver a top-notch solution tailored to your specific business needs. Regards, Yogesh Kumar
₹48 700 INR 7 päivässä
8,4
8,4

I’ll develop your Flutter-based manufacturing order system with a PHP/MariaDB backend. With 600+ projects and 10+ years of experience, I specialize in high-performance warehouse and sales apps involving Real-time Sync, PDF generation, and Role-Based Access. Our Solution: Flutter Android App: Fast order flows, offline sync, and WhatsApp PDF sharing. Backend: Secure APIs for Sales, Warehouse, and Admin reporting. Full IP: Complete source code & documentation. Why me? Check my 5-star profile for similar ERP/Order management tools. I provide 15-day post-deployment support. Ready to start today!
₹50 000 INR 15 päivässä
8,6
8,6

Hello, I will build your order management Android app in Flutter with a PHP/Python backend and MariaDB — covering role-based access for all four user types, multi-step order creation, warehouse fulfillment workflows, PDF generation, and reporting dashboards. For the sync mechanism, I will implement a delta-sync approach — only pushing changed products and customers since the last sync timestamp. This keeps data transfers minimal for sales agents in the field with unreliable connectivity, while orders remain online as you specified. Questions: 1) Do you prefer PHP or Python for the backend — or is that open for recommendation? 2) How many concurrent sales agents and warehouse users do you anticipate at launch? Looking forward to potentially working together. Thanks, Kamran
₹74 900 INR 13 päivässä
8,5
8,5

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert
₹40 000 INR 7 päivässä
7,1
7,1

Your need for a structured Android order management app with clear roles and real-time tracking fits well with what I’ve delivered before for a manufacturing client with complex warehouse flows. I’d build the Flutter app around the role-based login to ensure smooth sales, warehouse, contributor, and admin workflows that reflect your detailed specs. To tackle syncing efficiently, will product and customer data be updated frequently enough to require background sync, or is a manual sync button per role better for your team’s operations? Also, for order creation, does your workflow prefer step-by-step UI with instant backend validation or batch submission after all data is entered? Developing clean APIs in PHP or Python with MariaDB for your backend reporting and sync functions will focus on speed and reliability. PDF export and sharing via WhatsApp on Android will be integrated using lightweight libraries to avoid app bloat. I’ll prepare a full breakdown of tech choices, timeline, cost, and hosting options once we confirm your preference on sync handling and order validation. Ready to start bringing your design and requirements into a fully working app.
₹56 250 INR 7 päivässä
6,0
6,0

I have 6+ years of experience building Android applications with Flutter and PHP/Python backends, including role-based enterprise systems with real-time syncing, PDF generation, image uploads, and reporting. I’ve delivered similar manufacturing and inventory management solutions that integrate complex workflows for sales, warehouse, and admin roles. I understand your project requires a multi-role mobile app with offline sync, order tracking, PDF and image handling, and analytics, backed by a secure API and MariaDB database. My plan: review your provided designs and Replit mockup, implement Flutter front-end with responsive role-based login, develop secure backend APIs (PHP or Python), integrate PDF/image features, and build robust sync mechanisms. I will ensure reporting modules are fully functional, data integrity is maintained, and the entire system is documented for easy future extension. Post-deployment support for 15 days is included. Estimated timeline: 5–7 weeks depending on role complexity and sync features.
₹40 000 INR 7 päivässä
6,0
6,0

I have solid experience building Flutter apps with backend systems (Python/Django) and can develop your order management app with role-based access, APIs, reports, and sync features as required. I’ll deliver complete source code, documentation, and support, and can share timeline, tech stack, and cost breakdown in detail.
₹56 250 INR 20 päivässä
5,8
5,8

I have read your job post and your requirements clearly outline a well-structured, role-based order management system for a manufacturing workflow. I have solid experience building Flutter-based Android applications with scalable backend architectures, and I can deliver a fast, reliable system tailored to your business processes. I will develop a clean, responsive mobile app with role-based access (Sales Agent, Warehouse, Contributor, Admin), ensuring smooth order creation, tracking, and fulfillment workflows. Special focus will be placed on performance, intuitive UI (based on your designs), and real-time synchronization for products and customers, while keeping ordering strictly online as required.
₹45 000 INR 30 päivässä
6,0
6,0

Hi I reviewed your requirements in detail and this is a well-structured system that I can deliver with a clean, scalable approach. I will build the Android app using Flutter with smooth UI integration and role-based access for all user types. Backend will be developed in PHP (Laravel) or Python (FastAPI) with secure APIs and MariaDB database. All core modules—orders, customers, warehouse flow, sync, and reports—will be implemented as per your workflow. PDF generation, image uploads, WhatsApp sharing, and real-time order tracking will be fully integrated. The system will be optimized for performance, especially for fast order creation and warehouse operations. I will also ensure proper role permissions, audit logs, and secure data handling. You’ll receive complete source code, documentation, and 15 days post-deployment support. Estimated timeline: 3–4 weeks with structured milestones and testing. Ready to start immediately and deliver a reliable production-grade system. Best Regards Jitendra Sharma
₹60 000 INR 30 päivässä
5,5
5,5

As a software developer with over 7 years of experience, I have consistently delivered cutting-edge solutions to a range of industries. I've been attentively involved in every step of the process from design to implementation and I can assure you that your Android Order Management App is safest in my hands. Proficient in PHP, Python, Flutter and more, I have the expertise needed to bring your app to life. Lastly, our collaboration won't end after I hand over the fully-functional app: I'll provide complete support for 15 days post-deployment. This shows dedication to you as my client and commitment to ensuring that the final product meets and exceeds your expectations. Let's get started on your Android Order Management App - I am truly excited about this opportunity!
₹37 500 INR 7 päivässä
6,6
6,6

With nearly a decade of Android development experience and a specialization in clean architecture and optimized performance, I am the ideal candidate for your order management app project. In line with your requirements, I have extensive experience developing role-based apps that demand fast order processing and real-time tracking - features integral to your manufacturing company's needs. My expertise in Kotlin and Java, along with my utilization of Jetpack Libraries, makes me well-versed in allowing seamless user experiences across different Android versions. I've successfully handled complex applications similar to yours, where user roles played a critical role in efficient workflows. Having worked on projects involving REST API Integration, Firebase, Realtime DB and FCM Push Notifications, I understand the importance of secure data sharing and communication in an order management system. In addition to being proficient in the requirements mentioned, I bring an added value to the table. My skills with Flutter can provide you with an additional option for cross-platform app development if desired. My goal is not only to create robust applications like yours but also leave you satisfied by offering 15-day post-deployment support alongside delivering fully-functional app source codes. Don't hesitate to give me any clarification you need as we look forward to realizing this project together!
₹56 250 INR 7 päivässä
5,4
5,4

With my proficiency in the Flutter, React Native, and Android development fields, I am confident in my ability to deliver a robust and seamless Android Order Management App that meets all your requirements. Having created multiple applications with features ranging from efficient database management to role-based access control, I am not only experienced but also well-versed in tackling every aspect of this project. I have a comprehensive understanding of mobile app architecture and backend systems, being proficient in PHP, Python, and databases like MariaDB. This enables me to feel extremely comfortable with your project scope, especially when it comes to PDF generation/sharing, image upload and syncing mechanism. Additionally, my dedication makes me an ideal candidate for this project. Not only will I deliver the required mobile application that aligns with your design but also ensure the backend APIs run effectively. Furthermore, post-deployment support is part of my package so you can count on me for any bugs fixes or modifications within 15 days. Overall, I believe my skills and experience make me perfectly suited for this project - let's get started creating a user-friendly app that your sales agents, warehouse personnel and administrators will love using everyday!
₹37 500 INR 7 päivässä
5,4
5,4

As an accomplished mobile app developer with a deep understanding of Android and Flutter, I am well-prepared to tackle the complex requirements of your order management app. Over my 10 year career, I've crafted and delivered over a hundred successful projects similar in complexity to yours. This depth and diversity of experience allows me to thrive even within the unique challenges your job poses. My strong suit is derived from my excellent command of backend programming languages such as PHP and Python, facilitative in building forward-thinking APIs for efficient database management with MariaDB. Notably, I've developed apps with comprehensive roles and permissions like your project's user-based access control system. Furthermore, I'm captivated by your focus on real-time data handling; indeed, syncing is one of my areas of expertise. Therefore, anticipate an app that leverages optimal performance and enhances warehouse workflows. I'm not only suggesting efficiency but assuring top-tier service that can be maintained effectively post-deployment. In conclusion, tethering all my relevant experience, commitment to quality and dedication to timely delivery ensures a noteworthy solution for you. Let me undertake this incredible project!
₹56 250 INR 7 päivässä
5,2
5,2

Hi, I am an IIT Grad, Google Associate Android Developer, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Mobile App Developer, I can develop a cross-platform mobile application using Flutter with Firebase backend and payment gateway integration to support fast order creation, real-time tracking, role-based access control, efficient warehouse workflows, and reporting functionalities. Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect
₹37 500 INR 7 päivässä
5,4
5,4

Thank you for sharing your project details. Your need for an efficient Android Order Management App to streamline order handling in a manufacturing environment is paramount. With over 12 years of experience in full-stack development and mobile automation, I understand the intricacies involved in creating robust applications tailored for various user roles. I propose using Flutter for a seamless and responsive Android app while integrating a backend with PHP or Python, complemented by MariaDB for data management. The app will support fast order creation, real-time tracking, and role-based access control, ensuring optimal workflows across all user types from sales agents to administrators. Moreover, features like PDF generation, image uploads, and comprehensive reporting will enhance your operational efficiency. My approach guarantees that the final product aligns perfectly with your specifications. Could you please clarify if you have any preferred hosting solutions or specific APIs that need integration?
₹75 000 INR 7 päivässä
4,6
4,6

Dear Sir/Madam, I am Kishore Patidar, a professional Mobile App and Python Developer with strong experience in building scalable, production-ready mobile applications and backend systems. I specialize in Flutter (cross-platform), Android (Java/Kotlin), Firebase, Supabase, Node.js, FastAPI, and Django. I have successfully delivered multiple live apps on both Google Play Store and Apple App Store, including fintech, healthcare, education, social networking, and on-demand service platforms. My expertise includes: • Cross-platform mobile app development (Flutter) • Backend API development (Node.js, FastAPI, Django) • Payment Gateway integration (PhonePe, Razorpay, Stripe) • Real-time chat & notification systems • Admin panel & dashboard development • App deployment & store publishing • Secure authentication & role-based systems I focus on clean architecture, scalable backend design, optimized performance, and smooth user experience. From idea to deployment, I can handle complete end-to-end development. I would be happy to discuss your project requirements and deliver a reliable, high-quality solution within timeline. Looking forward to working with you. Best Regards, Kishore Patidar Mobile App / Python Developer
₹400 000 INR 30 päivässä
4,8
4,8

Leveraging my expertise in full-stack development, cloud solutions, and data engineering, I assure you a comprehensive and scalable solution for your order management app. My name is Gaurav, and at CloudStack Innovators, my team and I are passionate about building user-friendly applications that precisely address business requirements. Having worked extensively with Python, PHP, and backend databases like MariaDB, I'm well-equipped to construct a robust Android app with the right set of APIs. Additionally, our proficiency in AWS is a perfect fit for the necessary syncing mechanism between your manufacturing floor and mobile application. My commitment to streamlining operations within an organization aligns perfectly with your needs. From fast order creation to efficient warehouse workflows, real-time order tracking to reporting, we'll ensure that every aspect of your project is flawlessly executed. As a seasoned IT professional, I understand the importance of ensuring security and scalability for any app. With our experience in developing highly secure infrastructure, hosting your backend will also be our responsibility. Finally, as cloud technology continues to evolve at an unprecedented scale, having a partner like me who can help you embrace these technologies as and when needed is crucial. My credentials are not just about this job. They reflect my commitment for the long-term success of businesses; because I believe true partnership extends beyond project completion.
₹56 250 INR 7 päivässä
4,4
4,4

Hello, I have over 10 years of experience in software development, specializing in mobile app development and web development using PHP Laravel. I have worked on various projects including mobile applications, business websites, SaaS platforms, admin panels, APIs, and management systems. My expertise includes: • Mobile App Development (Android, iOS – Native & Hybrid) • Flutter and React Native App Development • Web Development using PHP, Laravel, MySQL • REST API Development and Integration • Admin Panels and Dashboard Development • E-commerce and Business Websites • Bug Fixing and Performance Optimization • Existing System Upgrade and Feature Development • Database Design and System Architecture • Deployment and Server Management I handle complete development from planning to deployment and maintenance. I focus on clean coding, scalable architecture, and long-term support. I am available to start immediately and assure reliable communication, quality work, and timely delivery. Looking forward to discussing your project. Thank you.
₹56 250 INR 7 päivässä
4,3
4,3

Hey, I'm Mahmoud. I'm a mobile apps developer working with Flutter. I've reviewed your document and the UI designs attached. I understand the full scope — Android app for sales agents, warehouse, contributors, and admins, with role-based access, order tracking, sync, reports, and PDF generation. Tech Stack I recommend: - Flutter for Android app (fast, clean UI, easy to maintain). - .Net core for backend APIs. - MariaDB for database. - APIs for all core operations (orders, customers, products, sync). - PDF generation & image uploads handled via backend. What I'll deliver: - Full Android app with role-based login (Sales Agent, Warehouse, Contributor, Admin). - Order creation (category → product → quantity), order timeline, fulfillment workflow. - Sync button for Sales & Warehouse (products + customers offline-ready). - PDF export + share via WhatsApp/Android. - Reports (Pending Items, Customer Aging, Sales Agent Performance, Warehouse Performance). - Admin reporting section (no CRUD, just reports). - Backend APIs + MariaDB database. - Complete source code + documentation. - 15 days post-deployment support. Let me know if you'd like to discuss the quote breakdown. Regards, Mahmoud
₹56 250 INR 7 päivässä
4,3
4,3

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Requirement Analysis ⟶⟶ System Architecture ⟶⟶ Backend API Development ⟶⟶ Flutter App Development ⟶⟶ Role-Based Logic ⟶⟶ Testing & QA ⟶⟶ Deployment & Support Key Highlights ✔ Complete system delivery — Android app + backend + database + APIs. ✔ Flutter-based app — fast, scalable, and future-ready for iOS if needed. ✔ Robust backend — Python (Django/FastAPI) or PHP (Laravel) based on your preference. ✔ Role-based access — Sales, Warehouse, Contributor, Admin with strict permissions. ✔ Real-time order flow — creation → acceptance → fulfillment → completion. ✔ Smart order management — multi-step flow with categories, products, and quantities. ✔ Warehouse workflow — partial fulfillment with mandatory notes + tracking logs. ✔ Sync mechanism — efficient data sync for products & customers. ✔ PDF generation — export & share orders via WhatsApp or Android apps. ✔ Image & notes support — attach files to orders for better tracking. ✔ Reporting system — performance, aging, pending items, and analytics. ✔ Secure architecture — audit logs, data integrity, and scalable DB design. ✔ Clean codebase — well-documented, modular, and fully owned by you.
₹37 500 INR 25 päivässä
4,0
4,0

Kolkata, India
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