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SignalFire

Founding Front-End Software Engineer (Senior/Staff) - VC Backed Startups

Sorry, this job was removed at 06:15 p.m. (PST) on Tuesday, Nov 11, 2025
In-Office
6 Locations
170K-250K Annually
In-Office
6 Locations
170K-250K Annually

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Join SignalFire’s Talent Network for Founding Front-End Engineer Roles at VC-Backed Startups

🛑 This is not an application for a specific job. Instead, this is a way to get on the radar of VC-backed startups that are actively hiring Engineering talent. If you have any questions, please direct inquiries to [email protected].

At SignalFire, we partner with top early-stage startups that are shaping the future of technology. Our portfolio spans 200+ innovative companies across AI, cybersecurity, healthtech, fintech, developer tools, and enterprise SaaS.

We’re looking to connect with exceptional Founding Front-End Engineers who are excited about building and scaling user-centric applications at early-stage startups. By joining SignalFire’s Talent Network, your profile will be shared with our portfolio companies, giving you visibility into exclusive early-stage opportunities that may not be publicly listed.

Who Should Join?

We’re looking for engineers who are:
✔ Passionate about building exceptional user experiences and modern web applications
✔ Excited about joining early-stage startups and working directly with founders
✔ Interested in shaping front-end architecture, performance, and design systems

Typical Roles & Responsibilities
  • 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 to align on vision and execution

  • Develop component libraries and reusable front-end architecture for scalable applications

  • Implement and maintain state management, API integrations, and client-side logic

  • Define best practices for front-end development, code quality, and UI testing

Common Qualifications

While each startup has its own hiring criteria, many founding front-end engineering roles in our network look for:

  • 3+ years of experience in front-end development, with a strong track record of shipping user-facing products

  • Expertise in modern JavaScript frameworks (React, Vue.js, Angular, Svelte)

  • Strong proficiency in HTML, CSS, TypeScript, and JavaScript (ES6+)

  • Experience integrating with RESTful APIs, GraphQL, and WebSockets

  • Knowledge of state management libraries (Redux, Zustand, Recoil, Vuex)

  • Familiarity with server-side rendering (Next.js, Nuxt.js) and static site generation

  • Strong understanding of web performance optimization, accessibility (a11y), and security best practices

  • Proficiency with version control (Git), CI/CD workflows, and front-end testing frameworks (Jest, Cypress, Playwright)

  • Experience working in early-stage startup environments or small, fast-moving teams is a plus

💡 Technologies You Might Work With:
  • Languages & Frameworks: JavaScript (ES6+), TypeScript, React, Vue.js, Angular, Svelte, Next.js, Nuxt.js

  • Styling & UI: CSS, SCSS, Tailwind CSS, Styled Components, Material UI, Chakra UI

  • State Management: Redux, Zustand, Recoil, Vuex, MobX

  • APIs & Data Handling: REST APIs, GraphQL, WebSockets, Firebase, Apollo Client

  • Tooling & Performance: Vite, Webpack, Babel, ESLint, Prettier, Lighthouse

  • Testing & Deployment: Jest, Cypress, Playwright, Storybook, GitHub Actions, Netlify, Vercel

  • Cloud & DevOps: AWS Amplify, Firebase, GCP, Docker, Kubernetes

What Happens Next?
  1. Submit your application to join SignalFire’s Talent Ecosystem.

  2. We review applications on an ongoing basis to identify strong candidates.

  3. If there’s a match, a SignalFire talent partner or a leader from one of our startups may reach out directly.

  4. No match yet? We’ll keep your profile on file for future front-end engineering roles in our portfolio.

HQ

SignalFire San Francisco, California, USA Office

501 2nd St, 100, San Francisco, CA, United States, 94107

What you need to know about the San Francisco Tech Scene

San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.

Key Facts About San Francisco Tech

  • Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Google, Apple, Salesforce, Meta
  • Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
  • Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
  • Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine

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