Senior Web Security Engineer, Browser Platform

This fully remote security role is a strong fit for experienced ITSG readers who want to protect browser, AI, search, and application infrastructure while keeping incident detection and response capabilities sharp. DuckDuckGo lists one transparent annual base salary for this level. **What you would work on:** - Harden agentic browsing and Duck.ai experiences against threats such as prompt injection. - Audit browser and sync security, including special pages, password-manager surfaces, and integrations. - Prevent XSS, improve security tooling, and automate delivery of security fixes. - Maintain application-security scanning infrastructure, support triage, and run internal red-team exercises. **Good fit if:** - You have 7+ years in web or application security, including assessments, vulnerability research, penetration testing, or secure code review. - You have recent experience creating security-focused agentic harnesses. - You understand browser security models and common web vulnerabilities. - You can script or program in JavaScript and collaborate closely with product engineers. Curated from Jobicy for IT Support Group readers. This is an external listing; use the apply link for the source listing and latest details.