MAC Agent Engineer

<strong>Job Requirements </strong><br><p><span style="color:rgb(23,54,93);"><strong>Role and Responsibilities</strong></span></p><p><span style="color:rgb(36,51,66);">Design, develop and maintain macOS background agents for endpoint telemetry, device monitoring and cloud-connected services.</span></p><p><span style="color:rgb(36,51,66);">Collect CPU, memory, storage, battery, network and application-health telemetry using supported interfaces, respecting permissions, privacy and consent.</span></p><p><span style="color:rgb(36,51,66);">Implement sampling, aggregation and enrollment, on demand, real time and batch delivery, including persistent state, offline buffering and duplicate prevention.</span></p><p><span style="color:rgb(36,51,66);">Maintain secure cloud connectivity and IPC between privileged services and user applications; support configuration, feature flags and agent lifecycle workflows.</span></p><p><span style="color:rgb(36,51,66);">Debug performance, stability and resource-consumption issues; develop automated tests covering sleep/wake, reboot, network interruption, denied permissions and upgrades.</span></p><p><span style="color:rgb(36,51,66);">Collaborate on requirements, design, code reviews and release readiness; document changes and validation. Lead engineers also guide technical decisions and mentor the team.</span></p><br><br><strong>Work Experience </strong><br><p><span style="color:rgb(23,54,93);"><strong>Must Have Skills</strong></span></p><p><span style="color:rgb(36,51,66);">Strong Swift and/or Objective-C experience, with the ability to maintain both languages in an existing macOS codebase.</span></p><p><span style="color:rgb(36,51,66);">Practical C++/Objective-C++ integration skills, including bridging headers, ARC and memory ownership across language boundaries.</span></p><p><span style="color:rgb(36,51,66);">Understanding of macOS architecture, launchd, LaunchDaemons/LaunchAgents, permissions, entitlements and privilege separation.</span></p><p><span style="color:rgb(36,51,66);">Experience with Unix-domain socket IPC; familiarity with XPC, GCD, queues, synchronization and multithreading.</span></p><p><span style="color:rgb(36,51,66);">Experience with system telemetry, scheduling, aggregation and reliable delivery; Core Data or comparable persistence, schema migrations, JSON and versioned data contracts.</span></p><p><span style="color:rgb(36,51,66);">Networking knowledge covering HTTP/HTTPS, TLS, certificates, proxies, timeouts, retries and reconnects; secure credential storage using Keychain Services.</span></p><p><span style="color:rgb(36,51,66);">Strong diagnostics using Xcode, LLDB, Unified Logging, crash reports and Instruments; ability to investigate crashes, leaks and excessive CPU or battery usage.</span></p><p><span style="color:rgb(36,51,66);">Experience with unit and integration testing, Xcode projects/workspaces, xcode build and dependency management such as CocoaPods.</span></p><p><span style="color:rgb(36,51,66);">Understanding of Apple silicon/Intel compatibility, arm64/x86_64 builds, Rosetta and macOS-version differences; sound secure coding, design and communication skills.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(23,54,93);"><strong>Nice to Have Skills</strong></span><span style="background-color:rgb(198,198,198)!important;color:rgb(23,54,93);"><strong> </strong></span></p><p><span style="color:rgb(36,51,66);">AWS IoT Core, MQTT, Kinesis, S3 or similar cloud telemetry services; cross-platform endpoint agents and shared C++ components.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(36,51,66);">IOKit, SystemConfiguration, CoreWLAN, system extensions, DriverKit, Endpoint Security or Network Extension, as relevant to the use case.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(36,51,66);">MDM, configuration profiles, PPPC/TCC permissions, managed enrollment and bootstrap-token workflows.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(36,51,66);">Code signing, hardened runtime, notarization, .pkg installers, secure self-update and release automation.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(36,51,66);">Controlled script/job remediation, including root/user execution, timeouts, cancellation and result verification.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(36,51,66);">SwiftUI/AppKit, Safari/browser extensions or native messaging; CI/CD, Swift Package Manager, CMake, SQLite or Protocol Buffers.</span><span style="background-color:rgb(198,198,198)!important;color:rgb(36,51,66);"> </span></p><p><span style="color:rgb(36,51,66);">Collaborative team player, willing to cross-skill across macOS, cloud integration and shared agent components.</span></p><br><br>