SignalfireVerified Source

Staff Front-End Software Engineer at VC-Backed Startups

170K–250K
Onsite · San Francisco, California
Posted July 31, 2026
payroll

Overview

SignalFire seeks passionate engineers to lead front-end development and scale web applications at high-growth startups. This role offers visibility through our Talent Network without applying to a specific position. Join our ecosystem to connect with early-stage opportunities across AI cybersecurity healthtech fintech developer tools and enterprise SaaS.

What You'll Do7

  • 1Design and develop scalable high-performance front-end applications
  • 2Lead efforts to improve web performance accessibility and user experience
  • 3Collaborate with design product and backend teams to create intuitive UIs
  • 4Define and implement front-end architecture component libraries and design systems
  • 5Optimize state management API integrations and front-end workflows
  • 6Establish best practices for front-end development testing and CI/CD pipelines
  • 7Mentor junior engineers and provide technical leadership

Requirements12

  • 1Passionate about building and optimizing web applications for scale and performance
  • 2Excited about owning front-end architecture and driving UI/UX best practices
  • 3Experienced in leading front-end projects and mentoring junior engineers
  • 45+ years of experience in front-end development with a strong track record of shipping high-quality web applications
  • 5Deep expertise in modern JavaScript frameworks such as React Vue.js Angular Svelte
  • 6Strong proficiency in HTML CSS TypeScript and JavaScript ES6+
  • 7Familiarity with RESTful APIs GraphQL and WebSockets
  • 8Knowledge of state management libraries including Redux Zustand Recoil Vuex and MobX
  • 9Experience with server-side rendering using Next.js Nuxt.js and static site generation
  • 10Understanding of web performance optimization accessibility a11y and security best practices
  • 11Proficiency with version control Git CI/CD workflows and front-end testing frameworks like Jest Cypress Playwright
  • 12Experience working in early-stage startups or high-growth environments

Salary Insight

$170 - $250k per year

Location

Typeonsite
LocationSan Francisco, California

Required Skills

JavaScriptTypeScriptReactVue.jsAngularSvelteHTMLCSSNext.jsNuxt.jsReduxZustandRecoilVuexMobXREST APIs
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