Principal Software Engineer

About the Company

Cyberhaven is redefining data security by understanding how data flows across organizations. Backed by $250M from leading investors like Khosla and Redpoint, our team includes leaders who built industry-defining technologies at CrowdStrike, Palo Alto Networks, Meta, and Google.

Responsibilities

• Design, build, and maintain a robust browser extension for Chrome, Edge, and other major browsers using Manifest V3 and modern APIs
• Implement features that securely interact with web content and backend services
• Optimize performance and reliability across diverse environments and user workflows
• Work closely with the endpoint agent and backend teams to ensure tight integration
• Stay ahead of evolving browser APIs, security standards, and extension ecosystem changes
• Participate in code reviews, testing, and continuous improvement of development processes

Requirements

• 5+ years of software engineering experience
• 3+ years focused on browser extension development
• Strong proficiency in JavaScript, TypeScript, HTML, and CSS
• Deep understanding of browser extension APIs and Manifest V3
• Experience with secure coding practices and handling untrusted data
• Excellent communication skills and ability to work cross-functionally

Preferred Qualifications

• Background in security tools, SaaS products, or endpoint technologies
• Knowledge of Go for backend integration