{"id":915643,"url":"https://alion.io/job/sur-senior-macos-qa-engineer","title":"Senior MacOS QA Engineer","company":{"id":4875,"name":"Sur","domain":"hiresur.com","url":"https://alion.io/company/sur","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":100,"open_postings":4,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":57,"computed_at":"2026-10-16T05:45:00Z"}},"role":"QA","role_family":"QA","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":{"label":"EST","utc_offset_min":-5,"utc_offset_max":-5},"hiring_geo_confidence":"inferred","locations":["Bogotá, Colombia"],"countries":[],"hiring_countries":["AR","BR","MX","CR"],"hiring_countries_total":4,"salary":{"min":6500,"max":null,"currency":"USD","period":"month","gross":null,"usd_annual":78000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Tcpdump","optional":false}],"status":"live","first_seen_at":"2026-10-06T00:00:00Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-16T23:25:44Z","board_verified":true,"closed_at":null,"days_open":10,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":10},"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. This is a hands-on manual and exploratory QA role (not an automation role) that requires deep, practical experience with macOS internals, system extensions, and application behavior. You will work alongside a highly experienced 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.\nIf you thrive on identifying edge cases, love all things macOS, enjoy breaking complex systems in controlled ways, and have an investigative mindset for system behavior, this role is for you.\nResponsibilities\nTest macOS security features spanning system extensions, Endpoint Security, and Network Extension frameworks.\nDesign and execute manual test plans for system extensions, inter-process communication (XPC), and low-level operating system integration points.\nExplore and document edge cases, race conditions, compatibility scenarios, and regressions across macOS versions.\nReproduce and isolate complex issues related to sandboxing, SIP and TCC interactions, Launch Services, and daemon behaviors.\nWork directly with development, support, product, and automation teams to triage, verify, and regress bugs and compatibility issues.\nValidate interactions between the platform and third-party macOS apps and services.\nCollaborate with SDETs to turn exploratory and regression cases into automation candidates.\nMaintain close familiarity with changes in macOS releases and how they may impact functionality and compatibility.\nRequirements\n5+ years of QA experience with macOS applications, with a focus on security, system-level, or compatibility testing.\nStrong understanding of macOS internals, including System Extensions, Endpoint Security, XPC, TCC, SIP, Launch Services, and file systems.\nFamiliarity with macOS diagnostic and monitoring tools such as Console, Activity Monitor, Instruments, fs_usage, dtrace, tcpdump, and lldb.\nExperience testing low-level products such as VPNs, endpoint security tools, or antivirus software.\nAbility to read crash reports and debug logs and identify root causes.\nAbility to work independently and investigate issues thoroughly before escalating.\nExcellent written communication for clear test case documentation and bug reports.\nAvailability to work during US Eastern Time (EST) business hours.\nBenefits\nCompensation: $6,500 USD per month\nPTO and holidays\n* Only CVs submitted in English will be considered **","description_format":"text","description_chars":2642,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"country"},{"name":"Brazil","iso":"BR","kind":"country"},{"name":"Colombia","iso":null,"kind":"country"},{"name":"Mexico","iso":"MX","kind":"country"},{"name":"Costa Rica","iso":"CR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Recruiting & Staffing","IT Staffing & Staff 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