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I need a complete service-management solution built from the ground up: a web-based CRM for the office team and a companion Android app for field engineers. On the app side, engineers must be able to log new complaints, update job status at every stage, and share their live location so I can monitor assignments in real time. When they finish a job, the customer should receive an OTP via SMS or WhatsApp; only after that code is entered can the complaint be marked closed. Through the admin panel I want full user, complaint, and report management. I’ll register new complaints manually or import them, assign engineers, and track progress. The panel should automatically generate three key reports—daily complaint summaries, individual engineer performance, and overall service-resolution times—each exportable to PDF or Excel. Please build a solid backend (any modern stack is fine), expose clean REST APIs for the app, integrate a reliable SMS gateway and the official WhatsApp Business API for OTP delivery, and keep the UI responsive. Once finished, hand over: • Source code for web CRM, backend, and Android app • Database schema and setup script • API documentation • Brief deployment guide Everything must be ready for me to host on my own server and publish the app to Google Play.
Project ID: 40663839
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52 freelancers are bidding on average ₹8,352 INR for this job

Hello sir, I am Full stack developer with 10+ years experience in web and app development. What kind of features do you want to need? Let's connect and discuss further, Thanks, Bhargav.
₹7,000 INR in 7 days
7.1
7.1

Hello, We would be glad to support you with this project. Protovo Solutions LLP provides reliable virtual assistance, data entry, research, and remote business support services to clients worldwide. Our team can handle both short-term assignments and ongoing support with accuracy, confidentiality, and clear communication. Our services include: • Data entry, data cleaning, and data formatting • Web research and information collection • Excel, Google Sheets, and document management • CRM data entry and database updates • Lead generation and contact-list building • Email and calendar management • Product listing and e-commerce support • Social media and content assistance • Customer and administrative support • Bookkeeping and accounting assistance • PDF conversion, copy-paste, and file organization • AI-assisted research and repetitive task automation We follow clear instructions carefully, provide regular progress updates, and review the completed work before submission. Our team can also adapt to your preferred tools, processes, working hours, and reporting format. Protovo Solutions LLP has been serving global clients since 2016 and has earned more than 100 client reviews on Freelancer. Please connect with us through chat to discuss the work. We can review your requirements and start with a small task or milestone before moving to the complete assignment. Kind regards, Protovo Solutions LLP
₹12,500 INR in 10 days
6.8
6.8

As an experienced and versatile Full Stack Developer and AI Solutions expert, I am confident in my ability to deliver custom software solutions tailored specifically for your CRM and engineer app needs. With over 8 years of experience under my belt, I have the technical prowess to create a solid, scalable backend that will not only meet all your functional requirements but also ensure a smooth experience for all users. In relation to your project's specific needs, I'm well-versed in API development integral for driving the integration of reliable SMS gateways and leveraging APIs such as WhatsApp Business API for secure OTP delivery. My mobile app development niche in Flutter (Android & iOS) tells me that I’ll set the perfect foundation for developing your Android companion app with features like real-time location tracking, complaint logging, job status updates, amongst others you’ve listed. Moreover, I understand the importance of providing more than just the completed project; that is why I guarantee you a comprehensive handover package. This includes everything from source code to database schema and an easy-to-understand deployment guide. My commitment to long-term support after project handover should further assure that I’m here for you even after this project is complete. Let’s work together for a successful outcome that drives real results!
₹17,500 INR in 7 days
6.4
6.4

Hi I have read your requirements and I am sure 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. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹20,000 INR in 14 days
6.6
6.6

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
₹10,000 INR in 10 days
6.7
6.7

As a full-stack developer with significant expertise in Android app development and APIs, I am confident in my ability to deliver an outstanding service-management solution that encompasses your needs and preferences. My skills in stack along with proficiency in Node.js guarantee a resilient backend capable of supporting comprehensive data management and smooth real-time communication. My prior work on GPS-enabled apps and SMS delivery systems bodes well for the task of ensuring accurate live location sharing and reliable OTP distribution through WhatsApp or SMS. You can expect the same level of dedication, attention to detail, and efficiency in building a web-based CRM for your office team as well. Moreover, having proficiently handled databases like MongoDB, MySQL, PostgreSQL, Firebase, and Supabase previously, you can trust me with creating a meticulously crafted database schema and setup script. Lastly, my extensive background not only in app development but also in UI/UX design is an added advantage. Not only will I deliver exceptional functionality as per your requirement but also provide an aesthetically pleasing design that enhances user experience. All the source code, documentation, database schema, API integration, etc will be handed over ready for publishing on your own servers and Google Play. Choose me for a seamless, comprehensive service management solution that delights both your team and customers alike!
₹7,000 INR in 7 days
6.1
6.1

OTP-gated job closure is the right call, but WhatsApp Business API needs a pre-approved template for OTP delivery, and Meta rejects anything that looks promotional. I'll wire SMS as the fallback so closures never stall. Laravel backend with REST APIs, React admin for complaints, assignments and the three exportable reports, and an Android app with live location and status updates. 1) Which SMS gateway do you prefer, Twilio, Vonage, or a local Pakistani provider? 2) Do you already have a Meta Business Manager approved for WhatsApp API? Cheers Shayan
₹5,350 INR in 3 days
5.6
5.6

Greetings, I have reviewed your project posting. However, the description doesn’t include enough details to accurately assess the scope. Please open a chat so we can discuss your requirements in detail and identify the best solution for your needs. Regards
₹7,000 INR in 7 days
5.0
5.0

Hello, I can build your complete service-management platform with a web CRM and Android app, backed by a scalable API-driven architecture. With 5+ years of experience, I’ll develop the full system including: * Complaint creation, assignment, status tracking, and engineer management * Android app with live location tracking and job updates * SMS/WhatsApp OTP verification before complaint closure * Admin dashboard with users, complaints, and service reports * Daily, engineer-performance, and resolution-time reports * PDF/Excel export functionality * Secure REST APIs, database, and reliable notification integrations * Complete source code, API documentation, database setup, and deployment guide Warm Regards, Monica Bhatia
₹6,000 INR in 3 days
5.0
5.0

I can build the complete service-management platform from the ground up, covering the **web-based CRM, Android field-engineer application, backend, real-time tracking, OTP-based job closure, reporting and API layer**. For the architecture, I’d recommend **React.js + Node.js/NestJS + PostgreSQL + Kotlin Android**, with WebSockets for real-time updates. This gives you a scalable backend and keeps the CRM and mobile application cleanly separated through documented REST APIs. ### Core functionality **Android Field Engineer App** * Secure engineer login and role-based access * Create/log new complaints * View assigned jobs * Update complaint status at each stage * Real-time location sharing while on active assignments * Job history and customer information * Completion workflow with OTP verification * Complaint cannot be closed until the customer OTP is successfully verified **Web CRM / Admin Panel** * Admin authentication and role management * Create and import complaints * User and engineer management * Assign/reassign engineers * Live assignment and location monitoring * Complete complaint timeline and status tracking * Search and filters by engineer, date, status and complaint * Dashboard with operational metrics
₹7,000 INR in 5 days
5.0
5.0

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹7,000 INR in 7 days
4.1
4.1

Having worked extensively with end-to-end project development, I am excited about the possibility of creating a comprehensive service-management solution for your team. My strong background in PHP and mobile app development positions me well to build your desired web-based CRM and Android app. I am highly proficient in HTML and CSS, ensuring that my websites are not only functional, but also beautiful and responsive on all devices, a crucial aspect for an app as multi-functional as yours. Moreover, my experience in integrating various APIs – be it social media platforms or payment gateways – will be instrumental in integrating the SMS gateway and WhatsApp Business API needed for the OTP delivery. I place great importance on understanding client's unique needs and delivering results aligned with their objectives. Having built robust backend systems in the past, I can assure you a solid backend architecture. Lastly, my project deliverables will include not just the source code for the web CRM, backend, and Android app but also a detailed database schema and setup script along with API documentation. You would have all the files needed for self-hosting so you can have maximum control of your system and publish your app to Google Play with ease. Looking forward to leveraging my skills to meet and exceed your expectations.
₹1,500 INR in 7 days
4.0
4.0

Hi there, I understand you require a comprehensive service management solution, including a web-based Customer Relationship Management (CRM) system for your office team and a mobile app for field engineers. Considering your specific project details, I appreciate your endeavor to streamline your operations and improve efficiency. As a full-stack developer with expertise in PHP, Laravel, Node.Js, and mobile app development, particularly in Android, I am confident in delivering an end-to-end solution tailored to your needs. I have extensive experience designing software architectures, proficiently utilizing CRM functionalities, and developing powerful web applications. To address your requirements, I propose the following deliverables: 1. Web-Based CRM Solution: I will design and develop a user-friendly CRM system that caters to your office team's needs. This solution will include features like user management, complaint management, report generation, and automatic progress tracking, ensuring seamless collaboration and real-time data consolidation. 2. Engineer App Development: For field engineers, I will craft a robust Android app. Key functionalities will include complaint logging, real-time job status updates, and sharing of live locations. To ensure secure complaint closure, the app will enable customers to receive and input One-Time Password (OTP) codes via SMS or WhatsApp, marking the complaint as resolved. 3. Admin Panel: As a dedicated back-end developer, I will create an admin panel that supports comprehensive complaint, user, and report management. This panel will also enable seamless complaint assignment to engineers, automated progress tracking, and intelligent complaint closure workflows, streamlining your operations and reducing manual workload. Best Regards, Anil Prajapati
₹7,800 INR in 10 days
4.0
4.0

Hello, Are you looking for a comprehensive service-management solution tailored to your needs? I understand the importance of having a seamless system that streamlines your operations. Your requirement for a web-based CRM for the office team and an Android app for field engineers is crucial for efficient workflow management. I propose to develop a robust backend system using a modern tech stack, along with clean REST APIs for the app to ensure smooth communication. By integrating a reliable SMS gateway and the WhatsApp Business API for OTP delivery, we can enhance customer experience and ensure secure complaint closure. With my expertise in backend development and API integration, I will create a user-friendly admin panel for complaint and report management. The system will automatically generate essential reports, facilitating data-driven decision-making. Additionally, I will provide comprehensive documentation and support for seamless deployment. You can view examples of my previous work in my portfolio: https://www.freelancer.com/u/rajeshrolen Let's discuss further details in a chat to align on the project requirements and deliver a tailored solution for your CRM and Engineer App Development project. Sincerely, Rajesh Rolen
₹1,500 INR in 7 days
3.2
3.2

Hello! I can build the service CRM, Android engineer app, REST APIs, live tracking, OTP-based closure, WhatsApp/SMS integration and PDF/Excel reports. We can discuss the workflow and stack here.
₹10,000 INR in 7 days
2.8
2.8

Field engineers work in basements, lift shafts and rural sites. If the app needs a signal to save a job sheet, they will stop using it and go back to WhatsApp. So the app writes locally first and syncs when a connection returns, with conflicts resolved on the server. Web CRM for the office: customers, jobs, scheduling, assignment to an engineer, and job history per site. Android app for the engineer: my jobs for today, status updates, notes, photos from the camera, and a customer signature on completion. Straight about the money: two products from the ground up is more than ₹1,500 of work. I have bid the bottom of your range because that is where I would start: the CRM plus the engineer app for one workflow, in your hands and usable. The rest we price once it is running. Five days. How many engineers, and what does a completed job need to capture before the office will accept it as done?
₹1,500 INR in 5 days
1.1
1.1

Hello, I’m bharghav, with 10 years of experience in matching job skills. My expertise aligns perfectly with your project requirements, particularly in PHP, Android, Software Architecture, and Web Development. I've carefully reviewed your need for a complete service-management solution. I will develop a robust web-based CRM and a companion Android app, ensuring field engineers can log complaints, update job statuses, and share live locations. The admin panel will provide comprehensive user and complaint management while generating key reports for tracking performance. Let's start a chat to discuss your project further and ensure all your needs are met. Best regards, bhargav922002
₹8,750 INR in 3 days
1.3
1.3

I Will Develop a Professional Software, Web App, or Custom Application Looking for a reliable software developer to turn your idea into a functional, secure, and user-friendly application? I can help! What I Offer Custom software development Web application development Business management systems Backend and API development Database design and integration Bug fixing and troubleshooting Feature development and improvements Third-party API integrations Responsive and user-friendly interfaces Deployment and technical support Why Choose Me? Clean, scalable, and maintainable code Responsive communication Focus on performance and security Solutions tailored to your requirements On-time delivery Post-delivery support How It Works Share your requirements and project idea. I will review the scope and recommend the best approach. We agree on features, timeline, and pricing. Development begins. You receive a tested and functional solution. Please contact me before placing an order so I can understand your requirements and provide the right package for your project.
₹9,999 INR in 7 days
0.0
0.0

Hi, I can build a complete service-management platform combining a responsive web CRM with an Android field-engineer app, real-time tracking and OTP-based job closure. My approach: • Build role-based CRM for admins to manage users, complaints, assignments and service workflows • Develop Android workflows for complaint creation, status updates, engineer assignments and live location sharing • Implement real-time complaint and location synchronization between engineers and the CRM • Integrate SMS and official WhatsApp Business API for customer OTP verification before job closure • Create automated daily, engineer-performance and resolution-time reports with PDF/Excel export • Build secure REST APIs with authentication, validation, error handling and API documentation • Add database indexing, audit logs and notification handling for reliable service operations • Test complete complaint lifecycle from registration and assignment through OTP-verified closure Technology stack: • Flutter for Android app • Laravel + PHP • MySQL • REST APIs • WebSockets/Firebase for real-time updates • Google Maps API • WhatsApp Business Cloud API + SMS gateway • PDF/Excel reporting • Git/GitHub This architecture provides a scalable foundation while keeping the CRM, Android app and APIs modular for future features. I’d be happy to discuss your vision and suggest ideas to make Fabulous Garments stand out online. Best Regards, Aman
₹7,000 INR in 7 days
0.0
0.0

Your full scope is much larger than the posted budget, so I propose a self-contained first milestone instead of promising an incomplete system. For ₹10,500 I will: 1. Define roles, complaint statuses, assignment and OTP-closing flows. 2. Design the PostgreSQL schema and REST API contract. 3. Specify live-location handling, permissions and retention rules. 4. Prepare an SMS/official WhatsApp integration plan, including failure and retry cases. 5. Deliver a phased implementation estimate and deployment architecture. Deliverables: technical specification, database diagram/schema draft, OpenAPI outline, and milestone roadmap. Limit: 5 hours; no production CRM or Android app is included at this stage. Which SMS provider and WhatsApp Business account do you already have? Should the Android app be native, or is Flutter acceptable?
₹11,467.51 INR in 1 day
0.0
0.0

Lucknow, India
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