How Senior Engineers Actually Build With AI in 2026 | Build a Full Stack Systems Architecture App
Senior engineers in 2026 don't write code — they design systems and let AI implement them. This nearly four-hour build of Ghost AI, a real-time collaborative architecture workspace, demonstrates spec-driven development through a six-file context system that turns AI agents from guessers into disciplined executors. The methodology, not the stack, is what separates shipping engineers from those drowning in AI-generated chaos.











