Security Researcher

This is a fully remote position, open to applicants in Bosnia and Herzegovina.

📋 Description

• Conduct research on browser, WebView, Android, and iOS environments from an attacker's perspective.

• Identify security signals, behavioral indicators, and technical patterns to enhance detection of fraud, abuse, automation, and AI agents.

• Explore attacker techniques involving bots, browser automation, AI agents, emulators, device spoofing, hooking, instrumentation, remote access tools, and anti-detection strategies.

• Design and execute experiments that compare legitimate, automated, AI-assisted, and manipulated environments.

• Assess signals for their reliability, stability, spoofability, privacy sensitivity, performance impact, and feasibility for production.

• Convert research outcomes into SDK feature requirements for web and mobile data collection.

• Develop internal tools, scripts, and lab environments to support signal research and validation.

• Collaborate with SDK, engineering, product, and detection teams to transition research from hypothesis to production.

⛳️ Requirements

• A minimum of 3 years of practical experience in security research, mobile security, browser research, fraud detection, reverse engineering, or a similar technical role.

• Proficiency with web browsers, mobile browsers, WebViews, browser APIs, JavaScript runtime behavior, browser automation, fingerprinting, client-side web security, and low-level browser technologies.

• Understanding of the architecture or codebase of contemporary open-source browsers and rendering engines, including Chromium, WebKit, Blink, or Gecko.

• Experience with native Android and/or iOS applications, mobile OS behavior, app instrumentation, emulators, device spoofing, mobile automation, mobile security, and low-level platform APIs.

• An attacker mindset with a practical grasp of bypass techniques involving automation, AI agents, spoofing, and anti-detection methods.

• Capability to discern subtle technical signals and convert them into actionable detection or data collection opportunities.

• Experience in designing technical experiments and validating research hypotheses.

• Familiarity with SDK development languages and environments such as TypeScript/JavaScript, Kotlin/Java, or Swift/Objective-C.

• Proficient in scripting, preferably using Python.

• Ability to tackle ambiguous problems independently and communicate findings effectively to engineering, product, and research stakeholders.

• Bachelor’s degree in Computer Science, Cybersecurity, Data Science, or a related field, or equivalent hands-on experience is considered advantageous.

🏝️ Benefits

• Security: thoroughly vetted clients to reduce risks and ensure reliability and timely payments.

• Career support and assistance in locating new opportunities.

• Legal guidance for independent contractor or sole proprietorship status, taxes, and related procedures.

• English language courses.

• Opportunities for professional growth.

• Team-building activities.

• People-first management with minimal bureaucracy.

• Supportive company culture.

• Flexible working hours.

• Comprehensive financial and legal support for independent contractors.

• Complimentary English classes with native or Ukrainian-speaking instructors.

• Dedicated HR support.