Senior MacOS QA Engineer
As the Senior macOS QA Engineer, you will be responsible for validating the stability, security, and compatibility of a secure macOS platform used to protect sensitive systems. You will work alongside a team of engineers and reverse engineers to design and execute manual test plans that dig into system extensions, inter process communication, and low level operating system behavior. This is a hands-on, investigative role suited to someone who enjoys uncovering edge cases and understanding how complex systems truly work.
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.
Requirements
• 5+ years of QA experience with macOS applications, with a focus 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 and monitoring 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.
Benefits
• Compensation: $6,500 USD per month.
• PTO and Holidays
We only accept CVs submitted in English.
Skills
As published by workable · 5 questions · 4 written answers
Basics
First name, Last name, Email, Phone, Address, Photo, Education, Experience, Summary, Resume, Cover letter, What is your desired salary for this job (USD)?, Please record a 2 sentence audio telling us why you are a good fit for the role. You can use the following link and paste it below: https://www.speakpipe.com/voice-recorder
Pick from a list (1)
- Is your application, including your CV, submitted in English?
Written answers (4)
- How many years of experience do you have testing macOS applications at a system or OS internals level (System Extensions, XPC, TCC, SIP, Launch Services)?
- How many years of experience do you have testing or working with the macOS Network Extension framework (e.g., content filter providers, packet tunnel providers)?
- How many years of experience do you have testing low level security products such as VPNs, endpoint security tools, or antivirus software?
- Which of the following macOS diagnostic and monitoring tools have you used professionally? Select all that apply: Console, Activity Monitor, Instruments, fs_usage, dtrace, tcpdump, lldb.