Senior Quality Assurance Engineer

Silmaril is building a macOS app focused on security for self-improving agents. The Senior Quality Assurance Engineer will own compatibility and release quality across Mac hardware, macOS versions, and enterprise deployment environments by building test coverage, validating MDM workflows, automating repeatable checks, investigating failures, and verifying fixes.

Responsibilities:

• Define a risk-based test matrix across supported macOS versions, Apple silicon and Intel where applicable, device states, and MDM platforms
• Build and maintain working test environments in Jamf Pro and Microsoft Intune, with coverage of Kandji and Mosyle where appropriate. Test the policies and configuration differences customers will encounter
• Validate installation, enrollment, updates, removal, reinstalls, and macOS upgrades. Test both clean devices and machines with existing policies and software
• Investigate permissions, privacy controls, profiles, background items, and system extensions where relevant. Distinguish product defects from packaging, signing, MDM configuration, and operating-system behavior
• Automate repeatable checks, device setup, evidence collection, and regression testing while preserving hands-on coverage for failures automation cannot reliably detect
• Turn strange incompatibilities into precise bug reports with steps, configuration details, logs, impact, and a clear account of what changed
• Set release criteria, report coverage and remaining risk, and work directly with engineering to verify fixes before they ship

Requirements:

• You have five or more years of experience in QA engineering, test engineering, or a closely related role
• You have tested native macOS software on real Macs across multiple OS versions and hardware configurations
• You have hands-on experience deploying and troubleshooting macOS software through at least one major MDM, such as Jamf Pro, Intune, Kandji, or Mosyle
• You can inspect logs, write scripts, build useful automation, and investigate a failure beyond the surface symptom
• You produce clear, reproducible bug reports and know how to prioritize a test matrix when exhaustive coverage is impossible
• You take ownership of the whole release experience, from a fresh MDM deployment to an update on a heavily configured customer machine
• Experience with endpoint security software, system extensions, PPPC/TCC, Full Disk Access, code signing, notarization, or macOS installer packages
• Experience administering several MDM platforms or supporting enterprise Mac fleets
• Strong Swift, Python, shell, XCTest, or CI experience
• A record of building a device lab or compatibility program from the ground up
• Open to remote work