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About the Role

Superhuman is developing an AI productivity platform, and Front-End Engineers are crucial for building user interfaces that integrate AI capabilities across various applications, including Chrome extensions, desktop apps, document editors, and inbox experiences. This role involves unique challenges such as real-time AI content rendering, designing inline agent suggestions, and creating no-code AI agent builder tools, requiring expertise in state orchestration across multiple surfaces to deliver a consistent experience to millions of users. Engineers have the freedom to innovate and influence the product roadmap as AI-powered features scale.

Responsibilities

Build interfaces for AI-powered products used by millions, including real-time chat experiences, inline agent suggestions, document editors, and agent builder tools.
Design and implement rich, responsive UI using React and TypeScript to create refined and elegant user interfaces.
Work across the Superhuman product suite, including Go, Mail, Docs, Grammarly, or enterprise solutions.
Target high availability for consumer and enterprise customers.
Address complex interaction design problems such as streaming content, intricate state management, and multi-surface interactions.
Collaborate with Product, Design, and ML/AI teams to translate AI capabilities into intuitive user experiences.
Contribute to an engineering culture emphasizing documentation, testing, and user experience.
Mentor and develop junior engineers on the team.

Requirements

7 years of experience in front-end development.
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.
Excellent software engineering fundamentals, including knowledge of algorithms and data structures.
Comfort working with AI-powered features, such as building UI for LLM-generated content, streaming responses, or agentic workflows.
Prior experience integrating AI/ML into product surfaces is a plus.
Fluency with AI coding tools (Copilot, Cursor, Claude Code, etc.) and a perspective on their impact on software development.
Experience with browser extensions, cross-platform web clients, or shipping front-end code across multiple surfaces (web, desktop, mobile) is a plus.
Deep understanding of continuous integration and delivery methods.
Strong product instincts, with a focus on end-user experience and quality.
Ability to work independently with minimal guidance.
Proactively manage priorities across multiple projects.
Collaborate effectively with cross-functional teams.

Skills

TypeScript
JavaScript
HTML
CSS
ReactJS
UI frameworks
Modern web client development tools
Web client testing tools
Algorithms
Data structures
AI-powered features
LLM-generated content UI
Streaming responses UI
Agentic workflows UI
AI/ML integration
AI coding tools (Copilot, Cursor, Claude Code)
Browser extensions
Cross-platform web clients
Multi-surface front-end development (web, desktop, mobile)
Continuous integration
Continuous delivery
Product instincts
Independent work
Priority management
Cross-functional collaboration

Location

Hybrid
US
Canada

Work Type

Hybrid
Full-time

Experience Level

7 years of experience in front-end development

Salary/Compensations

Base pay may vary depending on location, job-related knowledge, skills, and experience.
US locations are categorized into two compensation zones based on proximity to hub locations.
Expected salary ranges are outlined by compensation zone and may be modified in the future.

Benefits

Competitive pay
Excellent health care (medical, dental, vision, mental health, fertility benefits)
Disability insurance options
Life insurance options
401(k) matching
RRSP matching
Paid parental leave
20 days of paid time off per year
12 days of paid holidays per year
Two floating holidays per year
Flexible sick time
Generous stipends (caregiving, pet care, wellness, home office, and more)
Annual professional development budget and opportunities

About the Company

Superhuman is an AI productivity platform dedicated to unlocking superhuman potential.
The Superhuman suite of apps and agents integrates AI with over 1 million applications and websites.
Products include Grammarly’s writing assistance, Coda’s collaborative workspaces, Mail’s inbox management, and Go, a proactive AI assistant.
Founded in 2009, Superhuman empowers over 40 million people, 50,000 organizations, and 3,000 educational institutions worldwide to eliminate busywork and focus on what matters.

Equal Opportunity

Superhuman values diversity and encourages applications from all, especially those traditionally underrepresented in tech.
The company does not discriminate based on race, religion, color, gender expression or identity, sexual orientation, ancestry, national origin, citizenship, age, marital status, veteran status, disability status, political belief, or any other characteristic protected by law.
Superhuman is an equal opportunity employer and participates in the US federal E-Verify program (US).
The company abides by the Employment Equity Act (Canada).