Demo

Lead Frontend Developer (React, TypeScript)

Relay
San Diego, CA Full Time
POSTED ON 4/12/2026
AVAILABLE BEFORE 5/12/2026

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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Technical Responsibilities
  • Facilitate technical growth for all members of the development team
  • Develop, shape, and maintain technical processes and workflows
  • “Set the tone” in terms of craftsmanship standards and code quality
  • 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.
  • Active/thoughtful participation in discussions surrounding ticket specification, design review, etc.
  • Participate in active, intentional, and thorough code reviews.


Lead Responsibilities
  • Actively participate in GitHub discussions, issues, and pull requests
  • Provide technical support and guidance in both GitHub and Discord
  • Participate in growing the development team


Requirements
  • 5 years building production, customer-facing React applications.
  • 7 years of experience building production, customer-facing frontend applications (using React or any other frontend toolchain).
  • 1 year of TypeScript experience
  • Minimum 3 years working with any strongly typed programming language
  • Minimum 1 year leading or 2 years contributing to a web3-centric project
  • 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).
  • Working understanding of public key cryptography (encrypting, signing, etc) and associated user flows
  • Desire to work in a semi-public-facing role as an OSS maintainer


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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 Lead Frontend Developer (React, TypeScript) in San Diego, CA
$148,533 to $168,331
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