Senior MacOS QA Engineer
Core
Validate stability, security, and compatibility of a secure macOS platform used to protect sensitive systems.
Role type
Senior macOS QA Engineer (security & system internals)
Builds
macOS security features, system extensions, and endpoint security tools
Domain
Operating Systems / Cybersecurity
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
macOS internals knowledge, manual test plan design, edge case exploration, crash report analysis, low-level product testing, diagnostic tool usage
Preferred skills
Experience with VPNs, endpoint security tools, or antivirus software
Technologies
System Extensions, Endpoint Security, XPC, TCC, SIP, Launch Services, Console, Activity Monitor, Instruments, fs_usage, dtrace, tcpdump, lldb
Responsibilities
Test macOS security features spanning system extensions, Endpoint Security, and Network Extension frameworks; Design and execute manual test plans for system extensions, inter process communication, and low level operating system 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 and 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; Validate interactions between the platform and third party macOS apps and services.
Seniority
Senior, hands-on IC