Senior Frontend Engineer (Handshake AI Enterprise)

Join Handshake AI, a company at the forefront of AI technology. As a Senior Frontend Engineer, you will have the unique opportunity to architect the foundation of our new product, Handshake AI Enterprise. You will define how we build UI across the entire team, establish the component system, design language, and engineering patterns, and make foundational technology decisions. You will collaborate closely with Applied AI and Platform engineers, ship production-grade UI for enterprise customer deployments, and evolve the architecture over time.

• Architect the frontend foundation for Handshake AI Enterprise, including component system, design tokens, patterns, and engineering conventions.
• Make foundational technology decisions regarding framework choices, state management, rendering strategy, and performance budgets.
• Build shared libraries and abstractions that enable other engineers to move quickly without sacrificing quality.
• 5–6+ years of frontend engineering experience with a strong architectural track record
• Strong communication skills — you'll need to align engineers, product, and design on how things get built
• Strong opinions on frontend architecture — state management, rendering patterns, performance, accessibility — and the ability to defend and evolve them
• Experience making technology decisions that others depend on, with an eye toward long-term maintainability
• Deep expertise in ReactJS and TypeScript — you understand the tradeoffs, not just the syntax
• Proven experience building and maintaining shared component libraries or design systems used by other engineers
• Comfort working in ambiguous, fast-moving environments where the right answer isn't always obvious
• Experience with performance optimization, accessibility standards, or cross-platform rendering at scale
• Familiarity with enterprise deployment environments or security constraints
• History of writing technical documentation or guides that helped other engineers ramp quickly
• Background at a company known for high craft — you've seen what a great design system looks like from the inside
• Experience building frontend architecture for AI-powered or data-intensive applications