Bot Detection Researcher – Engineer

November 27

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Sardine

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Cybersecurity • Compliance • Fintech

Sardine is a cutting-edge platform focused on fraud prevention and compliance. The company offers a behavior-based system for fraud detection, identity verification, and transaction monitoring that helps leading banks, online retailers, and fintechs protect themselves from scams and financial crime. Sardine's technology integrates advanced behavioral biometrics and device intelligence to combat identity fraud, payment fraud, and account takeovers. The platform also streamlines compliance checks such as KYC (Know Your Customer) and AML (Anti-Money Laundering) transaction monitoring. Sardine's comprehensive solution empowers its clients to automate risk decisioning, identify high-risk users early, and manage fraud across the customer journey effectively.

51 - 200 employees

Founded 2020

🔒 Cybersecurity

📋 Compliance

💳 Fintech

📋 Description

• Analyze how browsers and mobile operating systems expose signals that can be used to detect automation, spoofing, rooting/jailbreaking, and other forms of tampering. • Examine frameworks such as Playwright, Puppeteer, Selenium, Appium, and mobile instrumentation tools to identify weaknesses and detection opportunities. • Explore OS-level behaviors, sensor patterns, app lifecycle events, Web APIs, and device characteristics to find inconsistencies between real and synthetic environments. • Build small prototypes or custom test harnesses to validate detection ideas and collect data from different platforms and OS versions. • Work closely with Web, iOS, Android, and backend engineering teams to bring validated signals into our production SDKs. • Monitor emerging trends in bot development, mobile emulation, and evasion techniques, and keep our detection logic up to date. • Document your research clearly and present your findings to technical and non-technical audiences.

🎯 Requirements

• Solid understanding of web internals, including JavaScript behavior, browser APIs, rendering differences, and WebView variations. • Practical knowledge of iOS internals—system APIs, sensors, entitlements, app lifecycle, and common jailbreak indicators. • Practical understanding of Android internals—system services, app architecture, rooting behavior, tampering techniques, and emulator characteristics. • Experience reverse engineering or dissecting behavior in at least one environment (JavaScript, Android APKs, or iOS runtime). • Familiarity with automation and botting tools and how they attempt to mimic real users. • Ability to run independent research, test hypotheses, collect data, and clearly communicate results. • Strong written and verbal communication skills.

🏖️ Benefits

• Generous compensation in cash and equity • Early exercise for all options, including pre-vested • Work from anywhere: Remote-first Culture • Flexible paid time off, Year-end break, Self care days off • Health insurance, dental, and vision coverage for employees and dependents - *US and Canada specific* • 4% matching in 401k / RRSP - *US and Canada specific* • MacBook Pro delivered to your door • One-time stipend to set up a home office — desk, chair, screen, etc. • Monthly meal stipend • Monthly social meet-up stipend • Annual health and wellness stipend • Annual Learning stipend • Unlimited access to an expert financial advisory