Senior Frontend Engineer - AI-Driven UI & Equity

HASH is a fast-growing deep-tech company hiring a Senior Frontend Engineer in London to own end-to-end delivery of world modeling and AI-native interfaces. You’ll collaborate with AI engineers, UX researchers and product teams to push browser capabilities and deliver advanced, data-driven UI components.

You’ll tackle complex UI challenges, establish frontend standards, and mentor other engineers while ensuring accessibility and performance across devices.