Senior MacOS QA Engineer

Sur; Bogotá; On-site; COP 204,896,000 - 245,425,000; Full time

Benefits offered by this job

PTO

Holidays

Job summary

Sur in Bogotá, Colombia is seeking a Senior macOS QA Engineer to validate the stability, security, and compatibility of a secure macOS platform protecting sensitive systems.

You will design and execute manual test plans, explore edge cases, reproduce issues efficiently, and work with cross-functional teams to triage and verify bugs and compatibility concerns. This hands-on role requires deep knowledge of macOS internals.

Qualifications

• 5+ years of QA experience with macOS applications, focusing on security, system-level, or compatibility testing.
• Strong understanding of macOS internals (System Extensions, Endpoint Security, XPC, TCC, SIP, Launch Services, file systems).
• Experience reading crash reports and debug logs to identify root causes.
• Ability to work independently and thoroughly investigate issues before escalation.
• 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 OS integration points.
• 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 daemons.
• Collaborate 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.
• Work with SDETs to turn exploratory and regression cases into automation candidates.
• Maintain familiarity with changes in macOS releases and their impact on functionality and compatibility.
• Ability to read crash reports and debug logs and identify root causes.

Skills

macOS QA

Security testing

System-level testing

Exploratory testing

Bug reporting

Independent work

Tools

LLDB

Instruments

Console

Activity Monitor

dtrace

Job description

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.
• 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.
• Compensation: $6,500 USD per month.
• PTO and Holidays