Senior Web Browser Researcher

This is a fully remote position, open to applicants in United States.

📋 Description

• Conduct independent research on innovative techniques for device identification, visitor identification, Smart Signals, and bot detection across contemporary browsers.

• Take full ownership of findings by evaluating actionable signals, backing assessments with data, and providing recommendations that include impact estimates, limitations, and trade-offs.

• Remain actively involved during engineering implementation, review modifications, respond to inquiries, and offer advice on edge cases.

• Develop and sustain research tools such as observers, fuzzers, and scrapers.

• Monitor browser updates through beta, canary, and development channels, along with spec/RFC discussions.

• Interpret browser modifications in relation to product implications and necessary actions.

• Create and disseminate structured research outputs, which include internal documentation, articles for product and engineering, proofs of concept, and experimental signal implementations.

• Provide mentorship to colleagues, perform peer reviews, and engage in public thought leadership.

⛳️ Requirements

• Comprehensive understanding of web platform fundamentals, browser internals, and web security principles.

• High proficiency in JavaScript.

• Capability to read, interpret, and navigate code across various programming languages.

• Strong knowledge of web networking fundamentals.

• Demonstrated ability to identify and articulate undocumented behaviors of web technologies, APIs, and protocols through testing, debugging, and reverse engineering.

• Proven history of independently advancing research from concept to a validated, actionable outcome.

• Experience in designing and conducting experiments on live traffic and analyzing extensive datasets.

• Recognized expertise in at least one area, such as reverse engineering, network-related research, or identification techniques.

• Broad working knowledge across related fields.

• Ability to clearly communicate findings, impacts, and trade-offs to engineering and product stakeholders.

• Authorized to work from the candidate's home location.

• Preferred: experience in creating research and automation tools, submitting issues to Chromium, Firefox, or WebKit bug trackers, backend development using Go, anti-fingerprinting strategies, and contributions to public research.

🏝️ Benefits

• 100% remote work.

• Opportunities for personal growth.

• Mentorship, peer review, and public thought leadership opportunities.

• An inclusive work environment.

• Flexibility to work from nearly any country, subject to country regulations and work authorization.

• No visa sponsorship is required or available.