Sur in Málaga, Spain, is seeking a Senior mac OS QA Engineer to validate a secure mac OS platform used to protect sensitive systems. This hands-on role emphasizes manual and exploratory testing over automation, with deep knowledge of mac OS internals and system behavior. You will design test plans, investigate kernel and inter-process interactions, and collaborate with engineers and reverse engineers to ensure compatibility and security across mac OS versions. English CVs are required. #J-18808-Ljbffr