Senior Web Compatibility Engineer

About the role

The Web Dependability Engineering team is responsible for ensuring websites function seamlessly across DuckDuckGo's browser platforms. As a Senior Web Compatibility Engineer, you will lead the triage process for web compatibility issues, debug complex site breakages, and develop durable fixes and automated tooling to improve the user experience. This role requires end-to-end ownership of projects, from initial scoping to post-incident analysis.

Responsibilities

• Own the web compatibility triage process and lead incident response for site breakage.
• Debug complex issues in third-party code and distinguish between site, browser, and privacy-protection bugs.
• Ship durable fixes across Mac, Windows, iOS, and Android platforms.
• Reverse-engineer obfuscated code and reduce issues to minimal test cases.
• Build and maintain LLM agent pipelines to automate site breakage reproduction and triage.
• Lead complex, ambiguous projects with minimal oversight.

Required skills

• JavaScript
• Web standards
• Web components
• Browser APIs
• Reverse engineering
• Debugging
• Incident response

Nice to have

• Swift
• Kotlin
• C#
• C++
• Python

Benefits

• Stock options
• Health insurance
• Paid parental leave
• Office setup allowance
• Co-working allowance

About the Company

DuckDuckGo is the online protection company on a mission to raise the standard of trust online. Founded in 2008, the company provides a suite of privacy-focused products including a search engine and browsers for Mac, Windows, iOS, and Android.