Founding Front-End Software Engineer – Senior/Staff

SignalFire

Founding front-end engineer building scalable, high-performance web applications for SignalFire’s VC-backed startup portfolio. Shaping front-end architecture, design systems, performance, accessibility, and reusable UI components at early-stage startups.

Posted 8/5/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $170,000 - $250,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and scaling user-centric front-end applications using modern JavaScript frameworks like React and Vue.js, while ensuring high performance, accessibility, and code quality. Proficient in integrating APIs and managing state with libraries such as Redux and Zustand, alongside a strong understanding of web optimization techniques.

Highest-signal resume keywords

Front-End DevelopmentReact FrameworkVue.js FrameworkAPI IntegrationWeb Performance Optimization

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaScript (ES6+)HTMLCSSTypeScriptRESTful APIsGraphQLWebSocketsState ManagementServer-Side RenderingStatic Site Generation

Tools & Technologies

GitCI/CD WorkflowsJestCypressPlaywright

Industry Keywords

User-Centric ApplicationsUI/UX DesignFront-End ArchitectureCode QualityAccessibility (a11y)

Tech Stack

Tools & technologies

AngularCypressGraphQLJavaScriptJestMobXNext.jsNuxtReactReduxSvelteTypeScriptVue.js

About the role

Key responsibilities & impact

Join SignalFire’s Talent Network for founding front-end engineer roles at VC-backed startups
Build and scale user-centric applications at early-stage startups
Design and develop scalable, high-performance front-end applications
Build intuitive, responsive, and visually engaging UI/UX experiences
Optimize front-end performance, accessibility, and responsiveness
Collaborate with product designers, backend engineers, and founders on vision and execution
Develop component libraries and reusable front-end architecture
Implement and maintain state management, API integrations, and client-side logic
Define best practices for front-end development, code quality, and UI testing
Submit an application to join SignalFire’s Talent Ecosystem
SignalFire reviews applications on an ongoing basis and shares profiles with portfolio companies when appropriate

Requirements

What you’ll need

3+ years of front-end development experience with a strong record of shipping user-facing products
Expertise in modern JavaScript frameworks, including React, Vue.js, Angular, or Svelte
Strong proficiency in HTML, CSS, TypeScript, and JavaScript (ES6+)
Experience integrating RESTful APIs, GraphQL, and WebSockets
Knowledge of state management libraries such as Redux, Zustand, Recoil, Vuex, or MobX
Familiarity with server-side rendering and static site generation, including Next.js or Nuxt.js
Strong understanding of web performance optimization, accessibility (a11y), and security best practices
Proficiency with Git, CI/CD workflows, and front-end testing frameworks such as Jest, Cypress, or Playwright
Experience in early-stage startup environments or small, fast-moving teams is a plus

Benefits

Comp & perks

$170K–$250K base compensation range
Equity
Visibility into exclusive early-stage opportunities
Potential access to opportunities across SignalFire’s portfolio companies
Potential future matching with front-end engineering roles
SignalFire talent partner or portfolio-company leader outreach if there is a match