Full Stack Developer for Marketing SaaS App

I'm looking for a strong Full Stack Developer to help me build a Marketing SaaS web app from the ground up. The idea is a simple but powerful tool that helps businesses understand what's working (and what's not) across their marketing - website performance, SEO, conversions, funnels, leads, campaigns, analytics and gives them clear, actionable recommendations. You'll be working across the frontend + backend, including dashboards, APIs, database, integrations, authentication, analytics, and potentially AI features. There's also a marketing website to build. I'm looking for someone who has actually built SaaS products, ideally in marketing, analytics, AI, or other data-driven products. You should be comfortable taking ownership of features, making technical decisions, and building things properly rather than just following tickets. Please send me a few relevant projects you've built and tell me what you personally worked on. And one small thing to make sure you read this: write at the beginning what is the converstion.