Software Engineer, Front-end

Superhuman Superhuman · Consumer · Hub - San Francisco · Engineering, Product, Design, and Marketing

Front-End Software Engineer role at Superhuman, focusing on building interfaces for AI-powered productivity tools. The role involves creating user experiences for real-time AI content generation, agent suggestions, and agent builder tools, integrating with various Superhuman products like Go, Mail, and Docs. Requires expertise in React, TypeScript, and experience with AI-related features, aiming to make AI capabilities intuitive for millions of users.

What you'd actually do

  1. Build the interfaces for AI-powered products used by millions — including real-time chat experiences, inline agent suggestions, document editors, and agent builder tools.
  2. Design and implement rich, responsive UI in React and TypeScript to build refined and elegant user interfaces.
  3. Work across the Superhuman product suite — Go, Mail, Docs, Grammarly, or enterprise..
  4. Target high availability for consumer and enterprise customers.
  5. Tackle hard interaction design problems: streaming content, complex state management, and multi-surface interactions.

Skills

Required

  • TypeScript
  • JavaScript
  • HTML
  • CSS
  • ReactJS
  • modern web client development
  • testing tools
  • algorithms
  • data structures
  • AI coding tools (Copilot, Cursor, Claude Code, etc.)
  • continuous integration and delivery methods
  • product instincts
  • collaboration with cross-functional teams

Nice to have

  • browser extensions
  • cross-platform web clients
  • shipping front-end code across multiple surfaces (web, desktop, mobile)
  • integrating AI/ML into product surfaces

What the JD emphasized

  • expert-level knowledge of TypeScript
  • extensive experience with ReactJS
  • Comfort working with AI-powered features
  • integrating AI/ML into product surfaces is a plus
  • Experience with browser extensions, cross-platform web clients, or shipping front-end code across multiple surfaces (web, desktop, mobile) is a plus

Other signals

  • building interfaces for AI-powered products
  • real-time chat experiences
  • inline agent suggestions
  • agent builder tools
  • streaming AI-generated content
  • agentic workflows