Custom Login & License Management System window application -- 2

@thiagofoz87

Your project requires more than a simple login screen — it needs a controlled licensing and access platform with secure authentication, device validation, payment integration, and centralized operator management. I can build this using a structured architecture with: - Desktop launcher application (Electron) with automatic startup and secure login flow - Backend API with JWT authentication, encrypted password storage, device binding, and license validation - Admin panel in React for operator management, renewals, login history, device monitoring, and force logout actions - PostgreSQL database with audit-ready data structure - Payment integration for automated license renewal and unlock flow - HTTPS-secured communication between desktop client and backend For the desktop security layer, I would implement device fingerprinting and controlled execution so the data-entry software only launches after backend authorization. The system can also support offline grace periods and tamper detection if required. The project should be developed in modular phases to keep the platform maintainable and scalable. I can deliver a production-ready foundation with clean APIs, proper validation, logging, and deployment guidance. Estimated timeline depends on the final feature depth, especially around payment workflows, offline mode, and anti-tampering requirements, but the core system can be delivered incrementally with testing at each stage.

@mundadiya

Hi, I hope you're doing well. I've delivered several secure desktop login and license systems integrating JWT auth and device binding. Built an Electron login app that validated credentials against Node.js/Express and PostgreSQL, enforced one-device-per-user and handled license expiry via Stripe webhooks. I'd start by prototyping the Electron or C# launcher, implement JWT-secured Express APIs, and wire Razorpay/Stripe webhooks plus encrypted local storage and an offline grace check. If you have ten minutes, I'd like to compare notes on your device binding rule and the offline grace window. Thank you, Alpeshbhai M.

@dhyanmoradiya

Hi, I’m Dhyan Moradiya, a skilled professional specialized in ASP.NET MVC, ASP.NET Core MVC, Blazor, and .NET Core Web API, having experience working with cloud solutions like EC2, S3, SNS, SQS, and Lambda for various functionalities. I'm excited to help with your project. I have worked on CRM, ERP, E-Commerce, and restaurant management apps, ensuring smooth functionality, user-friendly design, and bug-free code. Here’s why I'm the right choice: Proven experience with ASP.NET 4.8-6-7-8-9-10, database management, SQL Server, Payment Integration, APIs, Email, OTP, and security. Familiarity with scalable solutions for apps similar to yours. Timely delivery without compromising on quality. Let’s connect to discuss your requirements in detail. I'm eager to understand your vision and create an app that exceeds expectations. Looking forward to hearing from you! Best regards, Dhyan Moradiya

@Rahul5514

Hello, I am a Full-Stack Web Developer with experience in PHP, CodeIgniter, MySQL, HTML, CSS, JavaScript, Bootstrap, and responsive web design. I can develop, customize, fix bugs, and optimize your website according to your requirements. I focus on clean code, timely delivery, and clear communication throughout the project. I am confident I can deliver a high-quality solution that meets your expectations. I look forward to working with you. Thank you.

@warrick1718

I have a feeling most proposals you're receiving look exactly the same. This isn't one of them. Your need for a secure, seamless, and integrated Login & License Management System aligns perfectly with my expertise. While I'm new to Freelancer, I've delivered quality projects outside the platform for years. If you're looking for someone who thinks beyond the brief, I'd welcome the opportunity to chat. Regards, Warrick Van Eeden

@CliveMSoftware

I've built similar license management systems and can deliver the complete solution: C# WPF desktop login app with offline grace period support, Node.js/Express backend with JWT auth and device binding, PostgreSQL database, React admin panel with operator/license management, and Razorpay/Stripe payment integration. The login app will handle credential validation, license expiry popups with payment flows, and secure data entry software launching. I'll implement encrypted passwords, HTTPS APIs, device authorization checks, and login history tracking in the admin dashboard. With your budget, I can deliver core features within 4 days, with optional tamper detection in phase 2.