Windows Malware Researcher

We are looking for an experienced Malware researcher to join our Malware research team. The candidate will research Windows based malware, Chrome extensions and Android applications.

What you’ll do:

• Reverse engineer Windows and Android-based malware, understand how they operate while overcoming obfuscation and encryption techniques.
• Prepare detailed technical reports, including findings, risks, and mitigation recommendations.
• Work with cybersecurity teams and threat hunters to improve security posture.
• Take part in developing internal security tools.

Requirements:

• Proficiency in tools such as IDA Pro and Ghidra.
• Experience with native code debuggers (WinDBG, x64dbg, gcc etc.)
• Basic knowledge of encryption and obfuscation techniques.
• Familiarity with native programming languages (ASM,C/C++).
• Experience with network analysis tools such as Wireshark, Burp and HTTP-Toolkit.
• Experience writing scripts and tools using Python.
• Knowledge of Windows Internals and the Windows API.
• Understanding of network protocols and file formats (e.g., PE and APK).
• Independent, attentive to detail, organized and eager to learn new concepts.

Nice to have:

• Experience with dynamic analysis tools (Frida, Xpose etc.)
• Experience with Javascript.
• Participated in CTF tournaments.

ActiveFence is the leading provider of security and safety solutions for online experiences, safeguarding more than 3 billion users, top foundation models, and the world’s largest enterprises and tech platforms every day. As a trusted ally to major technology firms and Fortune 500 brands that build user-generated and GenAI products, ActiveFence empowers security, AI, and policy teams with low-latency Real-Time Guardrails and a continuous Red Teaming program that pressure-tests systems with adversarial prompts and emerging threat techniques. Powered by deep threat intelligence, unmatched harmful-content detection, and coverage of 117+ languages, ActiveFence enables organizations to deliver engaging and trustworthy experiences at global scale while operating safely and responsibly across all threat landscapes.