Senior WordPress Developer (PHP, Authentication & Security)

We are looking for an experienced Senior WordPress Plugin Developer to build a custom plugin that securely protects selected WordPress event pages while tracking attendee access. This is not a theme customization or page builder project. We're looking for someone with strong backend engineering experience who can design a secure, scalable, and maintainable WordPress solution. Our website already hosts event pages containing livestreams, presentation slides, schedules, and supporting content. These pages are already managed by our content team and must remain unchanged. The plugin should simply protect selected pages before they render, collect attendee information, grant secure access, and provide administrative reporting. Please Include in Your Proposal Please answer the following: -Have you implemented custom authentication or protected-content systems? -How would you protect an existing WordPress page without changing its layout? -Please share one or two relevant projects or GitHub examples.