Senior Staff Security Researcher- Mac/IOS, Reverse Engineering
ZscalerBengaluru, Karnataka, India
Posted October 7, 2025
Full Time
About the Company
Zscaler is a leading cybersecurity provider specializing in Zero Trust security. The company's Zero Trust Exchange platform, bolstered by AI, secures user access to applications and data from any location, preventing over 9 billion security incidents daily. Zscaler operates the world's largest inline cloud security platform, offering comprehensive solutions including SASE, CASB, and secure web gateways.
Job Description
Zscaler is seeking a Senior Staff Security Researcher to contribute to their Threatlabz team. The role involves performing static and dynamic analysis of macOS and iOS applications, reverse engineering malware samples, and researching security features. Zscaler emphasizes a collaborative and inclusive work environment.
Requirements
- Proficiency in system-level languages such as C, C++, Objective-C, Swift, and Assembly
- Deep knowledge of macOS architecture, including Mach-O, Cocoa, AppKit, and system security mechanisms.
- Extensive hands-on experience with reverse engineering tools such as IDA Pro, Ghidra, and Hopper
- Strong scripting skills, particularly in Python
- Decompile, disassemble, and de-obfuscate closed-source binaries
Benefits
- Various health plans
- Time off plans for vacation and sick time
- Parental leave options
- Retirement options
- Education reimbursement
- In-office perks
