Senior Web Browser Researcher
fingerprint
Senior174 000-235 000 USD
About the position
Join a remote team as a Senior Web Browser Researcher to enhance device identification and fraud detection technologies.
Tech stack
- javascript
- web-security
- reverse-engineering
Requirements
Required:
- Deep understanding of web platform fundamentals, browser internals, and web security concepts
- Strong proficiency in JavaScript, and the ability to read, comprehend, and navigate code across multiple programming languages
- Solid grasp of web networking fundamentals
- Proven ability to uncover and explain undocumented behavior of web technologies, APIs, and protocols through testing, debugging, and reverse engineering
Nice to have:
- Experience building research and automation tooling (scrapers, fuzzers, observers)
- Track record of submitting issues to Chromium, Firefox, or WebKit bug trackers
- Experience and interest in backend development (we use Go at Fingerprint)
Responsibilities
- Independently research novel device-identification, visitor-identification, Smart Signals, and bot-detection techniques across modern browsers
- Own findings end to end: assess whether a signal is genuinely actionable within real-world constraints
- Stay engaged through implementation — review engineering's changes against the research intent
- Build and maintain research tooling that surfaces new signals and detects browser platform changes automatically