TypeScript Engineer, JS Agent

📋 Description
• As a TypeScript Engineer, JS Agent at FingerprintJS Inc., you will own the browser-side JavaScript agent, CDN integrations, and performance-critical SDKs used by millions daily, playing a key role in stopping online fraud at the source through tamper-resistant, high-performance code.
• Day to day, you will build and maintain the TypeScript/JavaScript agent for device identification and bot detection, engineer for stealth and resilience in adversarial browser environments, optimize code size and execution speed, stay ahead of browser changes and fingerprinting techniques, collaborate with backend and security teams, write comprehensive tests, and contribute to CI pipelines and open-source projects with 24K+ GitHub stars.
• FingerprintJS Inc. is a globally dispersed, 100% remote company with a strong open-source focus, backed by $77M in funding from Craft Ventures, Nexus Venture Partners, and Uncorrelated Ventures, and known for its flagship open-source project FingerprintJS (20K+ stars on GitHub) that empowers developers to fight online fraud.
• In this role, you will deepen your expertise in browser internals, adversarial engineering, and high-performance SDK development, contribute to a widely-used open-source project, and work on technically challenging problems at the intersection of security, performance, and scale in the browser environment.