Full-Stack Developer

Description: Seeking a senior Full-Stack Developer to build and evolve Sergio, an AI assistant for home service businesses. Responsible for frontend, backend, data, billing, integrations, and AI capabilities. Requirements: Senior-level experience in building and shipping full-stack web applications. Strong expertise in Next.js App Router and TypeScript. Experience with Supabase or PostgreSQL, multi-tenant data modeling, and Row-Level Security. Familiarity with Stripe subscription billing and LLM APIs (e.g., Anthropic, OpenAI). Proficient in Playwright or similar testing frameworks and Tailwind CSS. Strong written communication skills and ability to work asynchronously. Benefits: Full-time remote position with flexible working hours. Long-term contract with opportunities for professional growth.