Modular HRMS-CRM-ERP Development

I want to kick-off a modular business platform, starting with the HRMS layer and expanding later to CRM and full ERP. The first release must cover three core HR functions—Payroll management, Employee performance tracking, and Recruitment and onboarding—delivered as both a web-based system and a companion desktop application.

For the web side I am fine with any modern stack (Laravel, Django, Node, .NET, etc.) as long as it is cleanly coded, documented, and REST-friendly so future mobile clients can plug in. The desktop client may be an Electron wrapper, a native .NET/WPF build, or another cross-platform framework—whichever you can execute efficiently while keeping UI/UX identical to the web app.

Deliverables
• Production-ready web HRMS with the three modules fully working
• Matching desktop application synced through the same API
• Role-based access, audit logging, and secure payroll calculations
• Database schema & ERD, setup scripts, and admin docs
• Clean code repository with commit history and a short video walk-through
• Post-delivery roadmap outlining how the same architecture will accommodate upcoming CRM and ERP modules

Acceptance criteria
1. All listed HR functions run error-free through manual test cases we will share.
2. Web and desktop clients stay in sync in real time via the shared API.
3. Source passes a quick security scan (OWASP top-10 leak-free).
4. Setup on a fresh VPS takes no longer than 30 minutes using your documentation.

If you have previous HRMS builds or reusable components that fit these requirements, mention them and the typical integration timeline.