DuckDuckGo

DuckDuckGo

Senior Web Security Engineer, Browser Platform

USRemotePosted Today$178,500 – $178,500
Full TimeSeniorRemoteUS

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Job Description

Who We Are Hi, we’re DuckDuckGo, the online protection company and remote-first team of 300+ on a mission to raise the standard of trust online. Founded in 2008 and profitable since 2014, annual reven

Key Highlights

  • Browser and sync security audits
  • SERP security mitigations
  • Agentic browser hardening
  • 7+ years of experience in web or application security (performing security assessments, vulnerability research, penetration testing, or secure code review)
  • Recent experience creating security focused agentic harnesses

Qualifications

Required Qualifications

  • 7+ years of experience in web or application security (performing security assessments, vulnerability research, penetration testing, or secure code review)
  • Recent experience creating security focused agentic harnesses
  • Experience influencing large feature designs to have security baked in from the start
  • Advanced programming or scripting experience with JavaScript. Any additional experience with our stack is a bonus: Swift/Kotlin/C#/JavaScript (native apps) or JavaScript/Perl/Go (search).
  • Experience with at least one WebView technology (WebKit, WebView2, Chromium WebView, etc.) and understanding of browser security models (SOP, CSP, CORS, SameSite cookies)
  • Hands-on experience identifying and exploiting web vulnerabilities (XSS, CSRF, injection attacks, authorization flaws, etc.)
  • Familiarity with security testing tools and frameworks
  • Experience partnering and collaborating with Product Engineers, advising on security matters and helping teams ship secure code faster
  • Experience shaping how an organisation thinks about security – driving best practices, improving processes, and raising the bar across teams

Skills & Technologies

JavaScriptSwiftKotlinGo

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Job Details

Employment Type

Full Time

Experience Level

Senior

Salary Range

$178,500 – $178,500

Location

US

Work Mode

Remote

Posted

Today

Country

US