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DuckDuckGo
Development 101d ago
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Senior Web Security Engineer

DuckDuckGo
🌍Global
Full-time
$178,500 USD / year
Senior

Job Description

Key Skills Required

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CybersecurityWeb SecurityPenetration TestingJavaScript

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About the Role: DuckDuckGo is the online protection company on a mission to raise the standard of trust online. As a Senior Web Security Engineer on the Browser Platform, you'll play a pivotal role in ensuring security capabilities keep pace with rapid product development, directly protecting users across all products.

What You'll Do

  • Conduct browser security audits for special pages, DuckAI integrations, and the password manager.
  • Execute SERP security mitigations, including XSS prevention and tooling development for safer code.
  • Manage application security scanning infrastructure setup (SAST/DAST integrations in GitHub).
  • Deliver on internal red-team operations (simulated attack scenarios) and support security triage.
  • Maintain incident detection and response capabilities for the company.

What You Bring

  • 7+ years of experience in web or application security (security assessments, vulnerability research, penetration testing, or secure code review).
  • Advanced programming or scripting experience with JavaScript (Swift, Kotlin, C#, Perl, or Go is a bonus).
  • Experience with at least one WebView technology (WebKit, WebView2, Chromium WebView) and understanding of browser security models (SOP, CSP, CORS).
  • Hands-on experience identifying and exploiting web vulnerabilities like XSS, CSRF, and injection attacks.

Benefits

  • Annual Compensation: $178,500 USD plus stock options.
  • Paid parental leave, office setup, and co-working allowances.
  • Flexible work arrangement with no core hours (average 40 hours/week).
  • 100% remote work flexibility globally (with occasional travel for team retreats).

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DuckDuckGo is a premier, enterprise-grade privacy technology platform engineered to orchestrate massive-scale anonymous search ecosystems and intelligent data protection workflows. Operating as a highly integrated digital privacy hub, the company eliminates the operational friction of traditional localized tracking by seamlessly deploying advanced cryptographic search, rigorous anti-tracking architectures, and cohesive anonymous browsing frameworks. Moving beyond rigid legacy search engines that harvest user data, DuckDuckGo empowers global consumers, privacy-conscious professionals, and digital-first enterprises to dynamically synchronize their online exploration with elite anonymity execution. Under the hood, their sophisticated search infrastructure natively handles complex query routing, instantaneous tracker blocking, and seamless secure connection forcing, ensuring frictionless information retrieval and uncompromising data sovereignty. What sets DuckDuckGo apart is its uncompromising dedication to frictionless privacy orchestration; by bridging the gap between cutting-edge search algorithms and absolute user anonymity, the platform empowers users to radically accelerate their digital exploration, eliminate surveillance overhead, and build an unassailable foundation for continuous privacy dominance in the modern internet landscape.

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  • Never pay for a job application.
  • Do not share sensitive bank info.
  • Verify the client before starting work.
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