I am building a SaaS platform called BookReady, which provides fully built booking websites using WordPress Multisite and Ultimate Multisite (https://ultimatemultisite.com/) The platform is already live and functional. I am looking for an experienced developer to help stabilize, optimize, and maintain the system long-term. This is not a basic WordPress site. It is a custom SaaS environment with advanced logic, routing, onboarding flows, and third-party integrations. Scope of Work: Core Responsibilities: - Debug and fix issues across the platform (frontend and backend) - Improve stability of the custom onboarding flow (AJAX, media uploads, mobile UX) - Refactor and optimize custom PHP and JavaScript code - Ensure compatibility with Ultimate Multisite, LatePoint, and MetaBox - Fix redirect logic and access control (multisite routing and login flow) - Improve performance and prevent conflicts (REST API, AJAX, caching) Frontend and UX: - Refine the custom frontend dashboard (replacing the default WordPress admin UI) - Improve mobile responsiveness and overall user experience - Help build a clean SaaS-style interface (Most is done, just polishing) Ongoing Work: - Monitor and fix bugs as they arise - Assist with implementing new features - Provide technical guidance for scaling the platform Tech Stack: - WordPress Multisite - MetaBox - LatePoint - Stripe - Elementor - Custom PHP and JavaScript - REST API and AJAX Requirements: - Strong experience with WordPress Multisite - Experience with WP Ultimo or UM is a strong plus - Comfortable working with custom PHP (not just plugins) - Strong debugging skills (JavaScript, AJAX, backend) - Understanding of SaaS-style architecture Preferred (Not Required): - Experience with booking or scheduling platforms - Familiarity with Stripe integrations - Good eye for UI and UX Project Type: Initial phase: Fix and optimize current system Ongoing: Maintenance and feature development