---
title: 'Senior Frontend Developer (React, TypeScript) at Relay'
canonical: 'https://feeny.ai/job/senior-frontend-developer-react-typescript-relay-san-diego-6aycq4grq2qw'
type: 'job'
last_seen: '2026-09-07'
---

# Senior Frontend Developer (React, TypeScript) at Relay

- **Company:** Relay
- **Location:** San Diego, CA
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2022-03-21
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.lever.co/relay/08053706-31b5-4fe1-9546-ad04b9cb0140

## Job description

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.

## 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).

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).

## About Relay

## Company Overview
- **One-liner**: Relay is a cloud-based smart radio and platform that replaces outdated walkie-talkies, connecting and protecting frontline workers with voice-first communication, real-time translation, and safety features.
- **Entity Type**: Private (Series B, last funding round $35M in June 2024)
- **Headquarters**: Raleigh, North Carolina, United States
- **Founded**: Not publicly available (first funding round recorded in 2023)
- **Founders**: David Morken (Co-Founder, Chairman)

## Core Business
- **Primary industry**: Mobile Computing Software Products – cloud-based communications for frontline workers.
- **Target customers**: B2B – enterprises in hospitality, manufacturing, logistics, retail, and other industries with deskless employees.
- **Mission or purpose statement**: “Empower the people who keep the world running – with technology that makes their jobs safer, easier, and more connected.” [relaypro.com/about-us](https://relaypro.com/about-us/)

## Products & Services
- **Relay Platform (SaaS)**: Voice-first communication platform with GPS tracking, panic alerts, real-time translation in 30+ languages, and seamless WiFi + cellular coverage. Operates as a cloud-based alternative to traditional two-way radios.
- **Relay Smart Radio (Hardware)**: Purpose-built wearable device designed for active, deskless workers, combining push-to-talk functionality with the platform’s software features.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Total funding of $48M (Series B: $35M led by G2 Venture Partners, June 2024; Series A: $13M, April 2023).
- **Notable Investors/Partners**: G2 Venture Partners (lead investor in Series B); four other unnamed investors participated.
- **Growth Signals**:
  - Employee headcount: conflicting reports: LinkedIn shows 268 employees (+44.4% YoY), BuiltIn shows 340 employees. Both indicate strong growth.
  - Over 2.5 billion messages delivered, 1 million+ mapped locations, and 2,500+ customers ([relaypro.com/about-us](https://relaypro.com/about-us/)).
  - Recognized on Inc. 5000, Deloitte Fast 500, and named NC Tech Company of the Year.

## Competitive Advantages
- **Modern cloud architecture** vs. legacy analog/digital radios – enables real-time language translation, location tracking, and software updates.
- **Safety-first design** with panic alerts and GPS tracking, differentiating it from consumer walkie-talkies.
- **Ease of deployment** – works over existing WiFi/cellular, no need for dedicated radio infrastructure.
- **Broad industry adoption** across hospitality, manufacturing, logistics, and retail, proving vertical versatility.

## Strategic Focus
- **Physical AI & Operational Intelligence**: Relay is building AI-native situational awareness and automated decision support for frontline environments, turning unstructured operational data into coordinated action in real time. [jobs.lever.co/relay](http://job-boards.greenhouse.io/relaypro)
- **Scaling enterprise sales** – recent job postings for enterprise account executives and customer success managers targeting industrial markets.

## Why Work Here
- **Mission-driven impact**: Directly improves the lives of deskless workers (72% improvement in customer responsiveness, 77% in overall efficiency).
- **Culture**: Described as a “winning team” with a culture of empowerment, engagement, and growth. Recognized as a top workplace.
- **Raleigh HQ campus**: On-site fitness center (basketball/volleyball courts), outdoor tennis/pickleball/soccer fields, gourmet cafeteria, and modern workspaces.
- **Remote/Hybrid policy**: “Flexible working” environment to support work/life balance ([relaypro.com/careers](https://relaypro.com/careers/)).
- **Benefits**:
  - 100% paid health, dental, vision, and life insurance.
  - Generous paid time off + floating holiday.
  - Paid sick leave.
  - 401(k) with 3% company match.
  - Baby birth cost assistance ($500 gift card) + paid parental leave.
  - Professional development and growth opportunities.

## Sources
1. [relaypro.com/careers](https://relaypro.com/careers/)
2. [linkedin.com/company/relaypro](https://linkedin.com/company/relaypro)
3. [relaypro.com/about-us](https://relaypro.com/about-us/)
4. [job-boards.greenhouse.io/relaypro](http://job-boards.greenhouse.io/relaypro)
5. [builtin.com/company/relay-0](https://builtin.com/company/relay-0)

## Other roles at Relay

- [Lead Frontend Developer (React, TypeScript)](https://feeny.ai/job/lead-frontend-developer-react-typescript-relay-san-diego-9hman49481ht) — San Diego, CA
- [Frontend Developer (React, TypeScript)](https://feeny.ai/job/frontend-developer-react-typescript-relay-san-diego-sgwrss4nv5d8) — San Diego, CA