Need Senior Next.js and Supabase Developer with AI Implementation

About The Role We are looking for a highly experienced senior Next.js and Supabase developer (full stack developer) to build a multi-tenant web marketplace application. The platform involves complex user role management, third-party API integrations, secure payment processing, and advanced database architecture and advance AI engines. Key Responsibilities & Tasks 1. Build a multi-tenant marketplace using Next.js and Supabase from the ground up using existing templates. 2. Architect and implement advance Supabase database with complex logic, features, RLS implementation and relational structures. 3. Develop multi page UI with multi dashboards for multi-role authentication and access control. 4. Solid experience in AI implementation with real-time logics. 5. Integrate 3rd-party KYC/KYB and payment gateway REST APIs. 6. Manage source code via GitHub with clean branching and version control. 7. Implement a notification management system across all user roles. 8. Execute advanced testing (unit, integration, E2E), bug fixing, and performance optimization. 9. Integrate 3rd party REST APIs where necessary 10. Design abuse detection engine 11. Complete UI/UX frontend customization Requirements & Qualification 1. 5+ years of professional full stack development experience in backend Supabase complex implementation. 2. Proven expertise in Next.js (App Router), Vercel deployment and Supabase (Auth, Real-time, Edge Functions, Row-Level Security protocols). 3. Strong experience with multi-role authentication, RBAC, and secure session management. 4. Hands-on experience with 3rd-party API integrations (KYC, payments, webhooks and websockets). 5. Solid understanding of Supabase schema design, triggers, and performance tuning. 6. Experience with designing AI/ML-driven logical engine and systems using OPEN AI or Claude. 7. Proficiency in GitHub workflows, CI/CD, docker and code reviews. 8. Strong testing mindset — Jest, Playwright, Cypress, or equivalent. How to Apply Please provide the live 5 multi tenant web applications examples with URL where bidding and auction system you implemented. Reply with "bidding and auction" in your proposal otherwise it will be rejected.