Senior macOS QA Engineer: Edge-Case & Security Testing

Sur Global; Poland; On-site; PLN 250,000 - 299,000; Full time

Benefits offered by this job

PTO and Holidays

Compensation: $6,500 USD per month

Job summary

Sur Global is seeking a Senior macOS QA Engineer to validate the stability, security, and compatibility of a secure macOS platform used to protect sensitive systems. You will design and execute manual test plans and work with reverse engineers to explore system extensions, IPC, and low-level OS behavior.

The role requires strong analytical skills to reproduce edge cases, diagnose root causes from crash reports, and collaborate with development, support, product, and automation teams.

Qualifications

• 5+ years of QA experience with macOS applications, focusing on security, system-level, or compatibility testing.
• Deep understanding of macOS internals, including System Extensions, Endpoint Security, XPC, TCC, SIP, Launch Services, and file systems.
• Experience with macOS diagnostic tools such as Console, Activity Monitor, Instruments, fs_usage, dtrace, tcpdump, and lldb.
• Experience testing low-level products such as VPNs, endpoint security tools, or antivirus software.
• Ability to read crash reports and debug logs and identify root causes.
• Ability to work independently and investigate issues thoroughly before escalating.
• Excellent written communication for clear test case documentation and bug reports.

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
• Collaborate with SDETs to turn exploratory and regression cases into automation candidates
• Maintain close familiarity with changes in macOS releases and how they may impact functionality and compatibility

Skills

macOS QA

Security testing

System testing

Edge cases

Crash analysis

Tools

Console

Instruments

lldb

fs_usage

dtrace

tcpdump

Job description

Sur Global is seeking a Senior macOS QA Engineer to validate the stability, security, and compatibility of a secure macOS platform used to protect sensitive systems. You will design and execute manual test plans and work with reverse engineers to explore system extensions, IPC, and low-level OS behavior.

The role requires strong analytical skills to reproduce edge cases, diagnose root causes from crash reports, and collaborate with development, support, product, and automation teams.