Web Automation Engineer

Firecrawl

. Research how modern websites detect and challenge automated traffic .

Posted 9/29/2026full-timeSan Francisco • California • United StatesMid-LevelSenior💰 $235,000 - $260,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building browser automation and web infrastructure, with strong skills in JavaScript, TypeScript, and Python. Capable of analyzing and improving detection mechanisms while working collaboratively with engineering teams to enhance web crawling capabilities.

Highest-signal resume keywords

JavaScript/TypeScript ProficiencyPython Programming SkillsBrowser Automation ExpertiseUnderstanding of HTTP/TLS and FingerprintingExperience with Playwright and Puppeteer

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Browser AutomationWeb Infrastructure DevelopmentJavaScript ProgrammingTypeScript ProgrammingPython ProgrammingHTTP/TLS UnderstandingDevice FingerprintingNetwork-Level FingerprintingCode AnalysisRendering and JavaScript Engines

Soft Skills

Research AbilityProblem-Solving SkillsCollaboration

Tools & Technologies

PlaywrightPuppeteerCDPAutomation ToolsDiagnostic ToolsMonitoring Tools

Industry Keywords

Web DataScrapingSecurity ResearchAutomation CompanyProxy Fleets

Tech Stack

Tools & technologies

JavaScriptPuppeteerPythonTypeScript

About the role

Key responsibilities & impact

Research how modern websites detect and challenge automated traffic
Analyze detection mechanisms and challenge flows
Identify browser, device, network, and behavioral signals distinguishing automated access from human traffic
Reproduce signals synthetically in authorized test environments
Build automation, diagnostic, and monitoring tools
Measure scrape success rate, explain regressions, and ship fixes
Work with platform engineers to deploy improvements across the crawling fleet at scale
Participate in application review, technical interviews, founder chat, and a paid work trial

Requirements

What you’ll need

3+ years building browser automation, web infrastructure, or systems-level software
Strong JavaScript/TypeScript and/or Python skills
Understanding of rendering, JavaScript engines, headless automation, CDP, Playwright, and Puppeteer
Understanding of HTTP/TLS, proxies, browser fingerprinting, and device fingerprinting
Ability to read minified and obfuscated code and determine what it checks
Ability to research deeply and ship fixes to production
Must be authorized to work in the United States or Canada
US visa sponsorship is not available; Canadian sponsorship considered case-by-case through the Toronto Hub
Must be based in or willing to relocate to the Bay Area or Greater Toronto Area before starting
Nice to have: JavaScript and VM-based obfuscation, network-level fingerprinting including TLS/HTTP2 signatures and JA3/JA4, large browser or proxy fleets in production, or experience at a scraping, web data, security research, or automation company

Benefits

Comp & perks

Competitive equity
15 days mandatory PTO; additional PTO beyond 24 days by request
12 weeks fully paid parental leave for all parents
$100 USD/month wellness stipend
Up to $1,000 USD/year Learning & Development expenses
Team offsites
3 paid months sabbatical after 4 years
US employees: medical, dental, and vision coverage; employer-paid life, AD&D, short-term disability, and long-term disability insurance; Teladoc; Rightway; Talkspace; Carrot fertility and family-building benefits; EAP; 401(k) plan; HSA, FSA, and commuter benefits; supplemental insurance and protection options through MetLife
Canada employees: extended health, dental, and vision through Manulife; employer-paid life, AD&D, short-term disability, and long-term disability insurance; Dialogue Premium; Talkspace Elite; Carrot fertility and family-building benefits; Group RRSP through Wealthsimple
SF employees: office snacks, drinks, team lunches, loaner electric bike
Toronto employees: office snacks, drinks, team lunches, PRESTO transit card, and station parking
Paid work trial at a contractor rate