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GigRadar.io

Win more clients on Upwork—without wasting time on manual outreach⚡ AI-powered automation for agencies & freelancers 🚀

Lead Browser Automation Engineer – Anti-Bot Specialist

QA Automation EngineerQA Automation EngineerFull TimeRemoteSeniorTeam 11-50Since 2018H1B No SponsorCompany SiteLinkedIn

Location

Indonesia

Posted

74 days ago

Salary

0

Seniority

Senior

Job Description

Lead Browser Automation Engineer – Anti-Bot Specialist

GigRadar.io

• Design, build, and operate a high-parallel data-plane: distributed crawlers, session management, and robust proxy orchestration • Implement and refine browser automation patterns using CDP (Chrome DevTools Protocol), WebRTC, and headful/headless stacks • Research, prototype, and implement anti-bot bypass techniques while maintaining ethical and legal standards • Build and integrate CAPTCHA solving/handling flows and session resilience logic • Analyze and mitigate browser- and network-level fingerprinting signals (JA3, TLS, CDP surface, JS-based fingerprints) • Develop detection and telemetry to understand why crawls fail and design fixes that scale • Collaborate with security, platform, and product teams to harden crawlers and maintain operational SLAs

Job Requirements

  • Strong hands-on experience with browser automation (CDP, Puppeteer, Playwright) at scale
  • Deep practical understanding of HTTP, TLS, and HTTP/2 internals and how they affect fingerprinting and blocking
  • Experience building and operating high-concurrency crawlers / data-plane systems (session pools, rate limiting, proxy rotations)
  • Proven experience analyzing and bypassing bot protection systems (Cloudflare, Akamai, Qrator, ServicePipe, Variti, etc.)
  • Familiarity with browser and network fingerprinting techniques (JA3, TLS fingerprinting, CDP/WebRTC surface)
  • Strong debugging skills (packet capture, browser traces, TLS flows) and an ability to translate findings into reliable engineering fixes
  • Solid software engineering fundamentals: production code, testing, observability, and incident response
  • Experience building or integrating CAPTCHA solvers / CAPTCHA orchestration is nice to have
  • Background in anti-bot research, red-team style testing, or security research publications / presentations is nice to have
  • Expertise with proxy networks, residential/IP pool management, or smart proxy selection algorithms is nice to have
  • Prior exposure to large distributed systems, Kubernetes, or service meshes used to scale crawlers is nice to have
  • Knowledge of WebRTC internals and how signaling/media flows can leak identifying signals is nice to have

Benefits

  • Competitive salary and equity
  • Generous learning budget for conferences, courses, and research resources
  • Opportunity to publish, present, and contribute to the anti-bot research community

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