Remote Senior macOS Security Engineer - Endpoint

Inabia Software & Consulting Inc.; Oregon; Hybrid; USD 110,000 - 165,000; Part time

Job summary

Inabia Software & Consulting Inc. is seeking a Senior macOS Cyber Security Engineer to develop, enhance, and maintain on‑device endpoint protection for macOS.

You will build high‑performance security sensors using C++, Swift and Objective‑C++ to monitor files, processes, networks, and identities, sending telemetry to the cloud. The role emphasizes macOS systems programming, concurrency, memory management, and optimization within System Extensions, Endpoint Security APIs, and IPC.

Qualifications

• Strong hands-on experience with modern C++ (C++17/20).
• Proficiency in Swift, including Swift 6 features and concurrency models.
• Experience with Objective-C++ for integrating Swift, C++, and C APIs.
• Foundational macOS knowledge: Foundation/CoreFoundation, GCD, pthreads.
• Familiarity with System Extensions, Endpoint Security APIs, and IPC.
• Experience profiling CPU/memory usage and debugging tools (Instruments, LLDB).
• CI/testing: XCTest, sanitizers, fuzzing, and Xcode-based pipelines.
• Large codebases across macOS/Windows/Linux and cross‑platform concerns.
• Security-focused design: code signing, entitlements, hardened runtime, Keychain.

Responsibilities

• Develop and maintain macOS endpoint security components using C++, Swift, and Objective-C++.
• Implement features that monitor file, process, network, and identity activity.
• Work with macOS System Extensions, NE APIs, and IPC mechanisms.
• Design high‑reliability software with attention to performance and CPU usage.
• Troubleshoot complex issues with debugging, crash analysis, and profiling.
• Develop and maintain automated tests and CI pipelines.
• Collaborate on shared codebases for macOS, Windows, and Linux.
• Ensure compatibility with Apple Silicon and Intel Macs.

Skills

C++ (C++17/20)

Swift (Swift 6, async/await)

Objective‑C++

Concurrency

Memory management

Debugging

Performance optimization

Cross‑platform development

System Extensions

Security engineering

Tools

Xcode

LLDB

Instruments

os_signpost

XPC

Jamf / Intune

Job description

Inabia Software & Consulting Inc. is seeking a Senior macOS Cyber Security Engineer to develop, enhance, and maintain on‑device endpoint protection for macOS.

You will build high‑performance security sensors using C++, Swift and Objective‑C++ to monitor files, processes, networks, and identities, sending telemetry to the cloud. The role emphasizes macOS systems programming, concurrency, memory management, and optimization within System Extensions, Endpoint Security APIs, and IPC.