Demo

Senior Frontend Developer (React, TypeScript)

Relay
San Diego, CA Full Time
POSTED ON 12/27/2025
AVAILABLE BEFORE 1/26/2026

Relay is building the web3 messenger. We are looking for talented and motivated front-end engineers of all experience levels. Relay engineers thrive in a high-growth, high-velocity environment where success depends on the highest levels of communication, code quality, and pragmatism. Each engineer must be able to individually own a slice of the Relay codebase while also maintaining a working knowledge of others. Accordingly, Relay is looking for team members who are not only highly-skilled individual contributors but also strong collaborators and communicators.

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Responsibilities
  • Carefully implement critical UI components, shared functionality, and certain subsystems (like monitoring, testing, validation, etc)
  • Rapidly implement functional UI elements from design mocks and workflow diagrams, with an eye toward correctness and readability.
  • “Set the tone” in terms of craftsmanship standards and code quality
  • Active/thoughtful participation in discussion surrounding ticket specification, design review, etc.
  • Participate in active, intentional, and thorough code reviews.


Requirements
  • 5 years of experience building production React applications
  • 1 year of TypeScript experience
  • Minimum 3 years working with any strongly typed programming language
  • Very strong verbal and written communication skills.
  • Very strong understanding of idiomatic UI implementation patterns
  • Deep understanding of JavaScript and TypeScript
  • Strong understanding of the browser programming environment (the DOM, data-fetching APIs, storage APIs, sessions, HTTP, caching, etc).


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Relay's benefits include unlimited and encouraged time off, 100% company-paid medical, dental, & vision for you and your dependents, 2-3x/week company lunches at local restaurants, and for remote employees: up to $2,000 USD home office setup stipend (all benefits are subject to applicable taxes and based on eligibility).

Salary.com Estimation for Senior Frontend Developer (React, TypeScript) in San Diego, CA
$119,434 to $139,802
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