I need a full-stack developer to build a self-hosted comment platform that can be embedded on any website, much like Disqus. A single JavaScript snippet should inject the UI, connect to the back-end, and respect each host site’s branding and settings. Core functionality • Social media login and Single Sign-On (SSO) so visitors can authenticate with minimal friction. • Per-site moderation dashboard offering both manual approval queues and automated keyword / spam filters. • Real-time comment streaming and updates via WebSockets or Server-Sent Events. • Emoji reactions on every comment to boost engagement. • Member badges that level up automatically based on post counts or community votes. • Public “profile pages” that list all comments a member has made across every page where the widget is embedded. • Multi-tenant architecture: each client site’s data, settings, and moderators stay isolated. • Clean, responsive interface that feels light on mobile and desktop. Deliverables 1. Production-ready codebase (front-end + back-end) with clear, version-controlled commits. 2. Database schema and migration scripts. 3. Deployment guide for Docker / Kubernetes or a comparable cloud setup. 4. API documentation for future integrations. 5. Basic test suite covering authentication, moderation, and real-time endpoints. Tech stack is open—Node.js, Go, or a modern equivalent are all fine—provided it scales and is well documented. When you respond, outline your proposed stack, past experience with similar SaaS or widget projects, and an estimated timeline to alpha, beta, and final release.