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Superhuman

Fastest email experience with AI tools

Front-End Software Engineer

Frontend EngineeringConfirmed live in the last 24 hours
Full-timeNew York, NY, USA$163.5k - $235k /yr

About the Job

Requirements

  • At least 7 years of front-end development experience.
  • Expert-level knowledge of TypeScript and/or JavaScript, HTML, and CSS.
  • Extensive experience with ReactJS or similar UI frameworks and modern web client development and testing tools.
  • Knowledge of algorithms and data structures.
  • Comfort working with AI-powered features, such as user interfaces for large language model-generated content, streaming responses, or agentic workflows.
  • Fluency with AI coding tools such as Copilot, Cursor, or Claude Code, and a point of view on how they affect software development.
  • Deep understanding of continuous integration and delivery methods.
  • Ability to work independently with minimal guidance and proactively manage priorities across multiple projects.

Responsibilities

  • Build interfaces for AI-powered products, including real-time chat experiences, inline agent suggestions, document editors, and agent builder tools.
  • Design and implement rich, responsive user interfaces in React and TypeScript.
  • Work across the Superhuman product suite, including Go, Mail, Docs, Grammarly, or enterprise products.
  • Target high availability for consumer and enterprise customers.
  • Solve interaction design challenges involving streaming content, complex state management, and interactions across multiple surfaces.
  • Collaborate with Product, Design, and machine learning and artificial intelligence teams to translate AI capabilities into intuitive user experiences.
  • Contribute to an engineering culture emphasizing documentation, testing, and user experience.
  • Mentor and grow junior engineers on the team.

Desired Qualifications

  • Prior experience integrating AI or machine learning into product surfaces.
  • Experience with browser extensions, cross-platform web clients, or shipping front-end code across web, desktop, or mobile surfaces.

About the Company

Superhuman

Fastest email experience with AI tools

Superhuman delivers a fast, feature-rich email experience that integrates with Gmail and Outlook to help teams manage their inboxes more efficiently. The product sits atop your existing email accounts and uses AI writing to draft messages, AI summarization to condense long emails, and a Split Inbox to separate different mail streams, all under a subscription. It differentiates itself by prioritizing speed and efficiency for professional teams and by offering a unified, streamlined interface with AI tools not found in standard email apps. Its goal is to help professionals reclaim time and boost productivity by making email handling faster and smarter.

Company size
51-200
Company stage
Series C
Total funding
$111.3M
Headquarters
San Francisco, CA
Founded
2015

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