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Hello, I am looking for an experienced full-stack developer (or team) to build a complete GSM service platform with a credit-based system. This project includes: A Windows desktop tool A web-based admin/reseller/user panel API integration with external GSM service servers The platform will allow users to purchase credits and use those credits inside the tool to perform mobile servicing operations via API. Core Requirements: Desktop Software (Windows) Login system (connected to web database) Server status indicator Service operation buttons (via API) Job processing (start/stop) Job history Auto credit deduction Clean, modern UI Web Application Admin Panel Manage users & resellers Credit management system API configuration (add/edit/remove APIs) Monitor all jobs/orders Dashboard (stats, logs) Reseller Panel Create/manage users Transfer credits View reports User Panel Buy credits View balance Job history API access (optional) API Integration Connect with third-party GSM service providers Send requests and receive responses Handle success/failure automatically Logging system Credit System Credit-based usage Each service deducts credits Real-time balance update Technical Requirements: Backend: PHP (Laravel) OR Node.js Desktop Tool: C# (.NET, WinForms or WPF) Database: MySQL API: RESTful API Secure authentication (JWT or similar) What I’m Looking For: Proven experience in similar systems Strong API integration skills Clean and scalable coding Long-term collaboration possible When Applying, Please Include: Your portfolio Similar projects (very important) Your tech stack suggestion Estimated timeline Budget or hourly rate Project Goal: To build a scalable, secure, and user-friendly GSM service platform for global customers.
Projektin tunnus (ID): 40350471
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Aktiivinen 3 päivää sitten
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63 freelancerit tarjoavat keskimäärin $483 USD tätä projektia

✔️✔️✔️✔️✔️ GSM Service Platform (Desktop + Web + API + Credit System) ✔️✔️✔️✔️✔️ Hello, How are you? I’ve reviewed your requirement and understand you want to build a complete GSM service ecosystem—including a Windows desktop tool, web-based admin/reseller/user panels, API integrations, and a real-time credit system. This is a multi-layered, high-reliability system, and I can design it to be secure, scalable, and production-ready. Features: • Windows Desktop Tool (Login, Server Status, Job Execution) • Real-Time Job Processing (Start/Stop + Status Updates) • Job History & Logs • Credit Deduction System (Per Service Usage) • Admin Panel (Users, Resellers, APIs, Monitoring) • Reseller Panel (User Management + Credit Transfer) • User Panel (Balance, Purchase Credits, History) • API Integration (Third-Party GSM Services) • Success/Failure Handling + Logging • Dashboard (Stats, Reports, Activity Logs) • Secure Authentication Let’s chat… Thanks
$540 USD 10 päivässä
9,6
9,6

As a seasoned Full-Stack Web Developer and Laravel expert who has successfully delivered over 130 projects, your GSM service platform can be entrusted in my hands. My technical skills in C# (.NET WinForms or WPF) for desktop development and PHP (Laravel) or Node.js for backend work will ensure consistency across the platform. With a deep understanding of RESTful APIs, I guarantee seamless integration with third-party GSM service providers, adapting to their requests and responding efficiently. One of my core strengths is my commitment to clean, scalable codes that do not only promote optimized performance, but also long-term maintainability- crucial for your project's longevity. Bootstraping from my experience in e-commerce development and enterprise website building, I have also acquired strong skills in database management with tools like MySQL and MariaDB, just like what is needed for your web-based admin/reseller/user panel. My clients have always appreciated my ability to understand their goals and deliver solutions that add real value - promptly, cost-effectively, and with clarity. To put it briefly, hiring me guarantees a state-of-the-art yet user-friendly GSM service platform for global customers, tailored specifically according to your project specifications. Let's get on board- let's build something remarkable together!
$350 USD 7 päivässä
8,8
8,8

With my 18 years of industry experience, a wide range of technical skills including Database Management, Node.js, PHP, and a special interest in Software Architecture, I believe I am the perfect fit for your GSM service platform project. Not only have I successfully built similar platforms like the one you're requiring of me, but I have also mastered API integration - an essential part of this project. My team and I are known for producing clean, scalable, and secure code to ensure your platform is not only efficient but also resilient to potential threats. In addition to delivering results that consistently meet time and budget constraints (743 satisfied clients can vouch for this), our approach is always long-term focused. Our goal isn't just about completing your project but also about establishing lasting relationships and providing support even after delivery. Experience, diligent work ethic, and proven ability to meet deadlines are some of my key strengths in a project like yours. To give you peace of mind and better transparency during the development process, I suggest using Laravel as backend and C# (specifically WPF) for your desktop software. Additionally, using MySQL as the database with RESTful API for your external service integration will provide fast response times and seamless operations for all users around the globe. Looking forward to contributing to your success!
$350 USD 7 päivässä
9,0
9,0

I have carefully reviewed your requirements for the Comprehensive GSM Service Platform Development project. You are looking for an experienced full-stack developer to build a complete GSM service platform with a credit-based system. I have a solid background in PHP, C#, MySQL, and WPF, making me a suitable candidate for this project. I am confident in my ability to deliver a scalable, secure, and user-friendly platform within your specified technical requirements. Please review my portfolio and past projects to see my experience in similar systems. Let's discuss the project details further to ensure a successful collaboration. Please go through my profile its 15 years old see the work I did over the years. No Win No Fee means that your satisfaction is my utmost priority. Lets discuss the job details. Moreover, I am willing to start the job and perform tasks without even being hired; it is just to show my commitment to this project. Looking forward to hear from you.
$245 USD 6 päivässä
8,7
8,7

Hi there, I will build your GSM platform — the C# desktop tool with login, service operations, and auto credit deduction, the Laravel web panels for admin/reseller/user roles, and the REST API layer connecting to external GSM providers. For the credit system, I will use database transactions with row-level locking so concurrent service requests never double-deduct or overdraw a balance — critical when multiple users hit APIs simultaneously. Questions: 1) How many external GSM service providers will the API layer need to support at launch? 2) Do you have a preferred payment gateway for credit purchases? Looking forward to talking through the details. Kamran
$270 USD 10 päivässä
8,4
8,4

⭐⭐⭐⭐⭐ Build a Complete GSM Service Platform with Credit System ❇️ Hi My Friend, I hope you're doing well. I’ve reviewed your project requirements and can see you are looking for an experienced full-stack developer. You have no need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for building robust platforms. I will create a user-friendly GSM service platform that includes a desktop tool, web panels, and API integration, all within your budget. ➡️ Why Me? I can easily build your GSM service platform as I have 5 years of experience in full-stack development, specializing in desktop and web applications. My expertise includes API integration, database management, and user authentication. Additionally, I have a strong grip on technologies like PHP, Node.js, and C#. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Full-Stack Development ✅ API Integration ✅ User Authentication ✅ Database Management ✅ Windows Desktop Applications ✅ Web Application Development ✅ PHP (Laravel) ✅ Node.js ✅ C# (.NET) ✅ MySQL ✅ RESTful API ✅ UI/UX Design Waiting for your response! Best Regards, Zohaib
$260 USD 2 päivässä
8,0
8,0

Hello, Building a GSM platform is less about the buttons and more about the precision of the credit-to-API handshake. A minor sync error can lead to balance discrepancies or failed logs, which is why I focus heavily on the socket connection between the C# desktop tool and your Laravel backend. I’ve previously built credit-based licensing systems where real-time validation and secure JWT authentication were the backbone. I’ll ensure the desktop UI remains responsive during heavy API calls so your users aren't left with a "Not Responding" window during critical mobile servicing tasks. My approach prioritizes a clean, "zero-lag" experience for both the reseller managing thousands of credits and the end-user performing the unlock. 1. Which specific third-party APIs are we prioritizing for the initial launch phase? 2. Do you require hardware-id (HWID) locking to prevent account sharing on the desktop tool? Let's chat.
$320 USD 8 päivässä
6,8
6,8

I'm Iosif Peterfi, 15+ years delivering secure, scalable platforms with a practical, business-first mindset. This is my speciality turning complex multi-stakeholder API integrations and credit-based platforms into reliable, compliant solutions that scale globally. You're building a GSM service platform with a Windows desktop tool, web admin/reseller/user panels, and API connections to external GSM providers. It uses a credit-based model, login across the platform, real-time balance, job processing, history, auto credits, a clean UI, and multi-level access. I'll deliver a secure, scalable platform that reduces risk, speeds value, and supports global customers. The plan focuses on a robust backend, dependable API integrations, user-friendly front-ends, and strong authentication, with clear milestones and risk controls. Last quarter I helped a telecom client launch a credit-based platform for European resellers. We cut manual checks by 60% and achieved near real-time credit updates. Let's chat - I can walk you through my approach in 15 minutes.
$4 200 USD 21 päivässä
6,6
6,6

I have experience building scalable full-stack platforms with secure APIs, user management, and credit-based systems, and I can handle both the Laravel backend and the C# desktop application with clean architecture and reliable API integrations. I will design a secure, scalable system with real-time credit handling, role-based panels, and a smooth desktop-to-server connection while ensuring clean UI and long-term maintainability. I’ve worked on similar API-driven platforms and can deliver within a structured timeline at a competitive hourly rate Best Regards, Muhammad
$200 USD 1 päivässä
6,2
6,2

Hi There Most GSM tools fail at scale because the desktop, API layer, and credit system aren’t tightly synchronized—I’d architect this as a unified ecosystem with a central API gateway handling auth, credit validation, and job orchestration in real time. For stability and speed, I’d use Node.js (or Laravel if preferred) for the backend, MySQL for transactional consistency, and a WPF desktop app with async job handling and live status streaming. I’ve built systems with credit-based billing, API integrations, and multi-role dashboards, so handling job queues, failure states, and reseller hierarchies is something I approach strategically—not just functionally. The key is designing it so adding new GSM APIs or scaling users doesn’t break the system or slow processing. Would you prefer the desktop tool to process jobs locally with API calls, or act more like a thin client fully controlled by the server logic? best regards Waqas A.
$350 USD 7 päivässä
6,1
6,1

Hello, I’ve reviewed your GSM service platform requirements in detail, and I’m confident I can deliver a secure, scalable, and user-friendly solution across desktop and web. I have extensive experience building credit-based systems with API integrations, including Windows desktop tools (C# WPF/WinForms), Laravel/Node.js backends, and multi-tier web admin/reseller/user panels. I can ensure seamless real-time credit deduction, job processing, and API communication while maintaining clean, maintainable code and modern UI/UX. Looking forward for your positive response in the chatbox. Best Regards, Arbaz M
$350 USD 3 päivässä
6,5
6,5

Hello There!!! ★★★★ (Building a secure GSM platform with credit-based system for desktop & web) ★★★★ I understand you need a full-stack solution: a Windows desktop tool integrated with a web-based admin/reseller/user panel, API connections to GSM service servers, and a real-time credit system for transactions and job processing. ⚜ Windows desktop app in C# (WPF/WinForms) ⚜ Web panels for admin, resellers, and users ⚜ API integration with third-party GSM services ⚜ Credit-based system with auto deduction ⚜ Job processing, history, and monitoring ⚜ Secure authentication (JWT) and logging ⚜ Dashboard with stats, reports, and user management I have experience developing desktop & web systems with Laravel/Node.js backends, MySQL databases, and real-time APIs. I’ll deliver a clean, scalable, and secure platform with smooth user experience. I can provide portfolio and similar projects on request. Warm Regards, Farhin B.
$350 USD 7 päivässä
6,5
6,5

Hello, I am interested in developing a complete GSM service platform with a credit based system. Please message me to discuss more details. Looking forward to working with you, Fahad.
$250 USD 2 päivässä
5,3
5,3

As a tech professional with vast experience across software development, data science and full-stack engineering, I am well-prepared to tackle your ambitious GSM service platform project head-on. Not only have I successfully delivered similar comprehensive systems in the past, but my expertise extends from back-end technologies such as PHP (Laravel) and Node.js ---which you are seeking---to C# (.NET, WinForms or WPF) proficiently used for your Windows desktop tool. My experience managing API integration and providing robust solutions within clean code bases will ensure smooth connectivity to external GSM service servers. In developing your GSM service platform, I would emphasize on security, scalability and UX. With that in mind, I’ll leverage my thorough knowledge of database management using MySQL and implementing RESTful APIs for seamless communication between each section of the platform. Additionally, being proficient with pertinent languages like Python, C++, and C#, I understand the esoteric demands of software projects, can foresee potential bottlenecks and troubleshoot them before they affect system performance.
$200 USD 7 päivässä
5,1
5,1

With my 14+ years of experience as a Full Stack Developer, I offer a comprehensive skill set that can attend to all the facets of your project. My expertise in APIs and software architecture makes me well-suited for integrating third-party GSM service providers, automating operations and handling real-time credit deduction adeptly. Additionally, my familiarity with numerous advanced technologies positions me uniquely to deliver not just a functional platform but also an intelligent one, leveraging AI Agents, NLP, MCP among others if required. Throughout my career, I've built scalable and secure applications that have maintained their viability over time. As a result, clean and maintainable coding is my commitment to you. Moreover, your project's need for a modern UI designed for ease of usage aligns perfectly with my user-centric development process. Pairing this with my value for deployment efficiency through CI/CD pipelines assures not only the realization of your vision but also a smooth journey alongside. Lastly, as regards long-term collaboration, I am invested in building lasting professional relationships which is why I prefer working on projects where I can offer sustained support and enhancements in the future. So, let's embark on this journey together and actualize your goal of a scalable, secure, and user-friendly GSM service platform for global customers!
$1 000 USD 15 päivässä
5,8
5,8

Hello, I understand you're facing the challenge of creating a comprehensive GSM service platform that is not only user-friendly but also scalable and secure. With 12+ years of experience in full-stack development, I specialize in building robust systems tailored to meet specific needs. For your project, I propose a tech stack that includes Laravel for the backend, C# with WPF for the desktop tool, and MySQL for database management. This ensures seamless API integration with third-party GSM providers while allowing smooth credit transactions and user management. My previous work includes similar platforms where clean UI design meets efficient functionality, ensuring users have an optimal experience. I am keen on establishing a long-term collaboration to support ongoing enhancements and maintenance. Could you share what specific features or functionalities are most critical for your initial launch? Looking forward to your response!
$500 USD 7 päivässä
4,4
4,4

As an avid full-stack developer with a commendable expertise in Laravel, MySQL, Node.js, and PHP, I strongly believe that I am the perfect candidate for your Comprehensive GSM Service Platform endeavor. Upon evaluating your project description, I am deeply impressed by the meticulousness and preciseness poured into it. Rest assured, my extensive experience developing similar platforms, coupled with my knack for cleanly designed and scalable coding, positions me as the best fit for your requirements. Over 10 years in the industry have helped me forge a solid path of reliable solutions. I possess exceptional API integration skills that you mentioned as being of great importance to the success of this undertaking. Having been hands-on with numerous technologies like HTML5, CSS3, JavaScript (React.js, Vue.js), C#, .NET as well as competent knowledge in winForms or WPF for desktop tools; I can bring your vision to life while adhering to stringent timelines and optimizing budgets.
$315 USD 7 päivässä
4,5
4,5

Hello Client, I’ve read your GSM service platform brief and I’m confident I can deliver a secure, scalable system that includes a Windows desktop tool, web admin/reseller/user panels, and robust API integrations with credit-based billing. I’ve built similar platforms that manage job queues, real-time credit deduction and multi-tenant reseller flows. My recommended stack is Laravel for the backend (or Node.js if you prefer JS across the stack), MySQL, and a C# WPF desktop client for a modern Windows UI. I’ll implement RESTful APIs with JWT auth, resilient API connectors for third-party GSM providers, a job processor with start/stop and status indicators, and immediate balance updates with transaction logs and retry/failure handling. I propose an initial phase to map APIs and design the database and auth flows, then iterative delivery of admin/reseller/user features and the desktop client, with thorough testing and documentation. I can share portfolio examples and a more detailed timeline once we confirm API partners and required services. Which third-party GSM providers or API endpoints do you plan to integrate first, and can you share their API docs or typical request/response examples? Best regards, Cindy Viorina
$200 USD 4 päivässä
4,0
4,0

Your GSM service platform needs a desktop tool that talks to your web database plus a multi-tier credit system. I'd build this with C# WPF for the Windows app, Laravel backend with MySQL, and RESTful APIs to handle the GSM service integrations. The credit deduction happens real-time as jobs process. I built something similar - a complete invoicing platform with 81-table database and role-based panels, plus VPS infrastructure with licensing servers for software companies. You can check out more at ffulb.com. Need you to provide Windows dev environment access and your GSM API credentials so I can assess the integration requirements and get the foundation running. Ready to start once I take a look at your setup.
$350 USD 10 päivässä
3,9
3,9

Hi, I understand you need a comprehensive GSM service platform with a credit-based system. I'll approach this project by first designing a secure and efficient backend API using Node.js and Laravel. This API will handle user authentication, credit management, and integration with external GSM service servers. My experience includes SaaS platform development, payment gateway integrations, and complex backend systems. I've worked on ERP and CRM systems, and I'm confident in delivering a scalable and high-performance platform. Key features will include a user-friendly desktop tool, a web-based admin/reseller/user panel, and API integration with external GSM service servers. I'll also implement a clean modern UI, job processing, and auto credit deduction. I'm confident in delivering this project within 4-6 weeks. I'd like to discuss the project details and provide a more detailed timeline and estimate. Can you share more about the external GSM service servers and any specific requirements you have for the platform?
$370 USD 7 päivässä
3,0
3,0

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