Strike

Founding Frontend Engineer

San Francisco, US Full-time

Strike is a Y Combinator–backed startup reimagining how the world prices uncertainty.

We’re building the first prediction market that lets businesses hedge against real-world outcomes — protecting against uncertainty in the same way they hedge currencies or commodities.

Backed by Y Combinator, Quadcode, Transpose Platform Management, Pioneer Fund, Goodwater Capital, and others.

Job Responsibilities

  • Take full ownership of our frontend architecture, leading the development of new user-facing features for our core web application using React.
  • Design, build, and maintain robust CI/CD pipelines for frontend to ensure smooth, automated, and reliable testing and deployment.
  • Set the standard for frontend quality: implement rigorous testing practices (unit, integration, E2E) and enforce strong code review processes to deliver a flawless user experience.
  • Develop and maintain products for both external users and internal teams (dashboards, admin panels, internal tools).
  • Collaborate closely with backend engineers to design, define, and integrate APIs; occasionally contribute to backend application logic when needed.
  • Proactively identify and resolve performance bottlenecks, bugs, and other issues across all frontend platforms.
  • Work closely with designers and product teams, contributing strong design intuition and ensuring high-quality, polished UI/UX execution across web and mobile.
  • In the near future, spearhead the entire lifecycle of our new mobile applications, from initial setup to deployment on both iOS and Android using React Native.

Qualifications

  • 3+ years of professional experience in frontend engineering.
  • Deep expertise in React and its ecosystem.
  • Demonstrable experience setting up and managing CI/CD pipelines for frontend applications (we use GitHub Actions).
  • Strong familiarity with AWS services relevant to frontend development.
  • Strong design sense and experience collaborating with designers/UX teams to deliver visually polished and intuitive interfaces.
  • A “0-to-1” and founding-team mindset: comfortable with ambiguity, takes extreme ownership, and thrives when building foundational systems.
  • Strong commitment to code quality, testing, and documentation.
  • Excellent communication skills and experience collaborating with both technical and non-technical stakeholders.

Nice-to-haves:

  • Proven, hands-on experience building, shipping, and maintaining mobile applications from scratch for both iOS and Android using React Native.

🚀 Y Combinator Company Info

Y Combinator Batch: W25
Team Size: 3 employees
Industry: Consumer
Company Description: Prediction markets for businesses

💰 Compensation

Salary Range: $120,000 - $160,000
Equity Range: 0.5% - 2.0%

📋 Job Details

Job Type: Full-time
Experience Level: 3+ years
Engineering Type: Frontend

🛠️ Required Skills

React React Native TypeScript