Senior MacOS QA Engineer

As a Senior macOS QA Engineer, you will play a critical role in validating the stability, security, and compatibility of the company's technology for macOS. This is a deeply technical manual QA role requiring hands‑on experience with macOS internals, system extensions, and application behavior.

• Test macOS security features that span across system extensions, Endpoint Security, and Network Extension frameworks
• Design and execute manual test plans for system extensions, inter-process communications (XPC), and low-level OS integration points
• Explore and document edge cases, race conditions, compatibility scenarios, and regressions across macOS versions
• Reproduce and isolate complex issues related to sandboxing, SIP/TCC interactions, launch services, and daemon behaviors
• Work directly with development, support, product, and automation teams to triage, verify, and regress bugs and compatibility issues
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