Senior Full Stack Developer — LLM Integration & AI Feature Development

We're looking for a Senior Full Stack Developer to integrate AI-powered features into our existing application. You'll work across the stack to design, build, and ship new AI capabilities into a live product used by real customers. Scope: - Assess the current app architecture and identify integration points for AI features - Build and integrate LLM-powered functionality (e.g., chat, content generation, or intelligent automation — specifics to be scoped together) - Implement necessary backend APIs and frontend UI to support new features - Ensure AI features are performant, reliable, and production-ready - Write clean, tested, documented code Acceptance criteria (definition of done): 1. AI feature(s) integrated and functioning in a staging/production-like environment 2. API endpoints documented and covered by tests 3. Frontend UI for the new feature is responsive and matches existing app UX patterns 4. Code reviewed and merged with no critical bugs in QA 5. Handoff documentation provided (architecture decisions, how to extend/maintain)