Senior/Staff Frontend Engineer

About the role

The Senior / Staff Frontend Engineer at Hypha is responsible for building the interfaces where users interact with complex financial data, AI-extracted entities, document viewers, dashboards, and conversational search. This role focuses on both frontend craft and architecture, leading the development of high-quality user interfaces, shaping interaction patterns, and making key decisions around component architecture, performance, state management, and frontend scalability.

Core Competencies

• Architect and scale frontend systems for data-dense interfaces, dashboards, document viewers, and AI-powered workflows
• Drive frontend performance across the application, including bundle size, rendering efficiency, state management, and perceived speed
• Build polished product experiences with careful attention to interaction design, animation, responsiveness, and edge cases
• Partner closely with design and product to translate complex workflows into intuitive, high-quality interfaces
• Own component architecture and help evolve our shared component library and frontend standards
• Improve maintainability and developer velocity through better abstractions, patterns, and frontend tooling
• Provide technical leadership through design reviews, architectural decisions, and mentorship of other engineers

Technical Leadership

• Help raise the quality bar through frontend architecture decisions, code quality, design feedback, and mentorship of other engineers

UX Depth

• Think holistically about user flows, information hierarchy, accessibility, keyboard navigation, and responsive behavior
• Understand how products need to behave across loading, error, empty, and populated states

Frontend Systems Thinking

• Understand the browser deeply, including CSS layout, DOM performance, rendering behavior, and browser APIs
• Make sound decisions around performance, maintainability, and architectural tradeoffs

AI-Fluent

• Use AI coding tools daily and know how to wield them effectively as a multiplier on top of strong fundamentals

What Sets You Apart

• Experience building or maintaining a component library
• Familiarity with data visualization (charts, graphs, complex tables)
• Experience with Tailwind CSS, Radix UI, or Shadcn
• Experience building real-time or collaborative interfaces
• Early-stage startup experience

Why Join Hypha

• Be at the cutting edge of applied AI
• Have a large scope and massive impact on the company
• Work directly with the leadership team
• Own critical frontend systems and help shape the technical foundation of the company as we scale
• Competitive compensation package: $225-$350k base salary and equity