Frontend Developer Needed - AI-Focused Project

I'm working on an AI-focused product and need a frontend developer who actually gets what modern AI interfaces look like and feel like  not just someone who can center a div. The work involves building clean, responsive UI that integrates with AI backends - think chat interfaces, streaming responses, dynamic data rendering, that kind of thing. React is the main stack. If you've worked on LLM-powered products before, that's a real plus. One thing upfront: I'll send a small paid test task. It's just how I filter for people who deliver, not just pitch well. If that's a problem, this probably isn't the right fit. Looking for someone reliable, communicative, and who doesn't disappear after saying "sure, I can do that." Drop a short note about what you've built, not a copy-paste cover letter.