
Senior Software Engineer – Browser Extension
Posted Aug 24

Posted Aug 24
This is a fully remote position, open to applicants in United States.
• Design, develop, and maintain a robust browser extension for Chrome, Edge, and other major browsers utilizing Manifest V3 and modern APIs.
• Implement features that securely engage with web content and backend services.
• Ensure adherence to security best practices.
• Optimize performance and reliability across various environments and user workflows.
• Collaborate with endpoint agent and backend teams to achieve tight integration and consistent functionality.
• Monitor changes in browser APIs, security standards, and the extension ecosystem.
• Participate in code reviews, testing, and ongoing enhancement of development processes.
• Contribute to the development and enhancement of Cyberhaven’s browser extension as part of its data security platform.
• Significant software engineering experience, including coding, testing, debugging, and automating complex TypeScript/JavaScript applications.
• Proficient in inspecting third-party web applications, network traffic, DOM structure, and client-side code.
• Quick to learn new technologies, particularly evolving browser extension platforms and manifest specifications.
• Emphasis on accuracy, performance, and reliability of background processes.
• Strong communication skills.
• Ability to work independently with minimal guidance.
• Effective coordination with developers working on non-browser platforms.
• Hands-on experience with browser extensions is advantageous; preference for Chrome/Chromium Manifest V3, with Firefox/Edge experience considered a plus.
• Knowledge of browser extension security models, including permissions, content security policy, isolated worlds, and secure communication between contexts.
• Experience with cybersecurity products or features, such as DLP, DSPM, or similar security/compliance tools, is a plus.
• AI-assisted interview note taking is disclosed in advance, with an option to opt out.
• Equal opportunity employment environment.
• Diverse and inclusive work environment.
JumpCloud
Candescent
ELEKS
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