Senior macOS QA Engineer: Security & Edge-Case Explorer

Sur Global; United Kingdom; On-site; GBP 49,000 - 59,000; Full time

Benefits offered by this job

PTO and Holidays

Job summary

Sur Global is seeking a Senior macOS QA Engineer to validate the security, stability, and compatibility of a secure macOS platform used to protect sensitive systems. You will design and execute manual test plans, investigate edge cases, and collaborate with developers, support, and automation teams.

The role requires 5+ years of macOS QA experience, strong knowledge of macOS internals (System Extensions, SIP, TCC), and proficiency with diagnostic tools. English CVs only.

Qualifications

• 5+ years of QA experience with macOS applications, focusing on security, system level, or compatibility testing.
• Strong understanding of macOS internals including System Extensions, Endpoint Security, XPC, TCC, SIP, Launch Services, and file systems.
• Familiarity 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.

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 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 and TCC interactions, launch services, and daemon behaviors
• Work 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 familiarity with changes in macOS releases and potential impact on functionality and compatibility

Skills

macOS QA

Security testing

System extensions

XPC/TCC/SIP

Troubleshooting logs

Tools

Console

Activity Monitor

lldb

fs_usage

tcpdump

Job description

Sur Global is seeking a Senior macOS QA Engineer to validate the security, stability, and compatibility of a secure macOS platform used to protect sensitive systems. You will design and execute manual test plans, investigate edge cases, and collaborate with developers, support, and automation teams.

The role requires 5+ years of macOS QA experience, strong knowledge of macOS internals (System Extensions, SIP, TCC), and proficiency with diagnostic tools. English CVs only.