Design and build a variable-based design token architecture and documented component library with theming. Modernize the existing system, write precise specs and documentation for designers, engineers, and AI agents, and collaborate with a small product design team to increase implementation velocity and quality.

Lead backend system design and delivery for AI-forward language-learning products. Own APIs, data models, and production services; make architectural trade-offs; ship end-to-end features; mentor engineers; work across frontend, mobile, and data when needed; and establish engineering practices that scale and incorporate AI coding workflows.