Senior Full-Stack Developer — SaaS MVP Enhancement (Next.js+ Supabase)

We are seeking an experienced Full-Stack Developer to assist with a focused enhancement within an early-stage SaaS product built for scalable web-based operations. The platform is a SaaS MVP built using Next.js 14 (App Router) with Supabase as the core backend infrastructure, handling authentication, database management, and multi-tenant data flows. The system is designed as a lightweight but scalable SaaS foundation, supporting user authentication, protected dashboards, and structured PostgreSQL-based data models through Supabase. During ongoing refinement of the product, a small issue was identified in the way authentication state and Supabase session persistence are handled within the Next.js frontend layer. This task involves improving session stability, ensuring consistent protected route behavior, and refining how user-specific data is fetched and rendered from Supabase in the dashboard environment. The goal is to ensure the SaaS application behaves reliably in production-like conditions without introducing architectural changes or redesigning existing systems. This is a small, well-scoped SaaS-focused task requiring strong experience with Next.js App Router, Supabase Auth, and modern full-stack React architecture. Successful completion of this task may lead to further engagement on additional SaaS feature development, scaling improvements, and backend optimization work.