Senior Browser Engineer at Firecrawl

Remote - San Francisco, CA

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In just a year, we’ve hit millions in ARR and 50k+ GitHub stars by building the fastest way for developers to get LLM-ready data. We’re a small, fast-moving team building essential tools for the AI era. We value autonomy, clarity, and shipping fast. We’re looking for a Senior Browser Engineer who can build and optimize advanced browser automation and fingerprinting solutions. You'll own our core browser infrastructure, ensuring reliable and stealthy web interactions through proxies, headless browsers, and sophisticated fingerprinting techniques. If you're passionate about browser engineering and delivering robust, high-performance solutions, you'll thrive here.

What You’ll Do

  • Develop and optimize browser automation using full/headless browsers (Chrome CDP, Playwright)
  • Implement sophisticated browser fingerprinting and anti-detection techniques
  • Manage and scale proxy integrations for high-volume web scraping
  • Collaborate directly with founders to design, build, and maintain browser-based solutions
  • Lead R&D and proof-of-concept work for innovative browser automation methods
  • Ensure performance, stability, and stealthiness across our browser infrastructure
  • Debug complex issues related to browser compatibility and scraping reliability

Who You Are

  • Deeply experienced with browser automation frameworks
  • Expert in fingerprinting, detection evasion, and stealth automation
  • Proficient in managing and optimizing proxy networks
  • Skilled in troubleshooting browser-related performance and reliability issues
  • Comfortable working in a fast-paced environment and independently driving projects from idea to deployment

Bonus Points

  • Experience with Chrome CDP or forked Chromium to implement a feature
  • Experience building anti-detection technology at scale
  • Familiarity with web scraping, data extraction, and large-scale crawling operations
  • Contributions to open-source browser automation or fingerprinting projects
  • Previous experience at a scraping, automation, or security-focused startup
  • Ex-founder

Salary

USD 150,000 - 300,000/year

Requirements

Experience

  • 3+ years

Skills

  • browser automation
  • fingerprinting
  • anti-detection
  • stealth automation
  • proxy management
  • troubleshooting
  • performance optimization
  • headless browsers
  • Chrome CDP
  • Playwright

Responsibilities

  • Develop and optimize browser automation using full/headless browsers (Chrome CDP, Playwright)
  • Implement sophisticated browser fingerprinting and anti-detection techniques
  • Manage and scale proxy integrations for high-volume web scraping
  • Collaborate directly with founders to design, build, and maintain browser-based solutions
  • Lead R&D and proof-of-concept work for innovative browser automation methods
  • Ensure performance, stability, and stealthiness across our browser infrastructure
  • Debug complex issues related to browser compatibility and scraping reliability

Technologies

Chrome CDPPlaywrightheadless browsersproxiesbrowser fingerprintinganti-detection techniques

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