Senior TypeScript Engineer

New

Skills

CI/CD Javascript Jest Security engineering Typescript WebPack

Join Fingerprint, a global leader in fraud detection, as a Senior TypeScript Engineer. You will drive the development of cutting-edge browser-based technologies that empower developers to prevent online fraud. Work remotely with a diverse, open-source-focused team committed to privacy, security, and technical excellence. This role is ideal for engineers passionate about building high-performance, privacy-aware solutions in complex browser environments.

Job Overview
  • Lead the development of browser-side TypeScript/JavaScript agents for device identification and risk assessment.
  • Work on open-source projects with massive adoption and visibility.
  • Collaborate with cross-functional teams to enhance security and detection capabilities.
  • Optimize code for stealth, performance, and compatibility across browsers.
  • Contribute to creating an inclusive and empowering remote work environment.
Key Responsibilities
  • Build and maintain browser-side agents for device intelligence and security.
  • Contribute to and maintain open-source projects with millions of users.
  • Engineer code for resilience, stealth, and minimal footprint in adversarial environments.
  • Stay updated on browser changes, plugin behaviors, and fingerprinting techniques.
  • Collaborate with backend, security, and data science teams for signal alignment and detection logic.
  • Write comprehensive automated tests and contribute to CI pipelines for cross-platform reliability.
Required Skills & Qualifications
  • Expert-level JavaScript and TypeScript, especially in browser environments.
  • Deep understanding of browser APIs, DOM, timing attacks, and anti-debugging.
  • Proficiency with build tools (Webpack, Rollup, Esbuild) and code optimization.
  • Experience with modern testing frameworks like Jasmine or Jest.
  • Strong sense of ownership, autonomy, and excellent English communication skills.
  • Familiarity with security principles, privacy best practices, and adversarial engineering.
  • Experience working independently in fast-paced, unstructured environments.

Job Type: Remote

Salary: Not Disclosed

Experience: Entry

Duration: 12 Months

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