Senior Full-Stack Developer

Responsibilities

• 01Agile Sprint Leadership & Collaborative Execution: Operated as Senior Full-Stack Developer within an Agile delivery framework—spearheading technical architecture, leading daily standup sprints, conducting peer code reviews, and actively engaging in iterative UI/UX design critiques with co-developers.
• 02High-Velocity ReactJS & Server-State Caching: Built a high-performance single-page application (SPA) using ReactJS, TypeScript, and Tailwind CSS. Implemented TanStack Query for asynchronous server-state management, sub-second global search, and zero-latency telemetry re-renders across high-density CRM tables and executive dashboards.
• 03Interactive Multi-View Scheduling Engine: Engineered a custom drag-and-drop/click-to-book calendar UI supporting Day, 3-Day, Week, and Month layouts. Developed a team schedule matrix mapping live status badges, assigned services, recurring shift rules, and multi-studio staff allocations.
• 04Workflow Automation & API Integrations: Connected backend workflows using N8N automation engines and WhatsApp Business API for automated client retention and real-time appointment signaling. Integrated Google Maps API for multi-branch address autocomplete and geographic studio mapping.
• 05Multi-Tenant Security & Bot Mitigation: Configured Supabase (PostgreSQL) database schemas and Row Level Security (RLS) policies for multi-branch workspace isolation. Implemented hCaptcha anti-bot layers on public booking endpoints to shield downstream webhook infrastructure from resource exhaustion.
• 06Service Catalog & Package Bundling Logic: Built dynamic promotional package builders supporting percentage (%) and fixed-dollar ($) discount models, categorized service duration timing, and multi-location workforce allocation logic.