C++ Engineer

Inabia Software & Consulting Inc.; United States; On-site; USD 120,000 - 150,000; Full time

Job summary

Inabia Software & Consulting Inc. is seeking a macOS systems programmer proficient in modern C++ and Swift. The role focuses on IPC, XPC, and bridging Swift with C/C++ APIs to build robust macOS services.

You will work on end-to-end macOS components, including security, CoreFoundation, and deployment tooling, with collaboration across Windows and Linux codebases. A hands-on, multi-platform developer is ideal.

Qualifications

• Proficient in modern C++ (C++17/20) and Swift 6 with async/await, actors, and strict concurrency checking.
• Experience bridging Swift, C++, and C via Objective-C++.
• Strong macOS systems programming with Foundation/CoreFoundation, GCD, POSIX APIs, Mach IPC, launchd daemons and agents, XPC.

Responsibilities

• Develop macOS system software using C++ and Swift.
• Work on IPC, endpoints, network extensions, security and cryptography.
• Collaborate on packaging, deployment, notarization, and deployment tooling.

Skills

C++17/20

Swift concurrency

XPC/NSXPC

GCD/PThreads

Tools

Instruments

LLDB

Xcode

Jamf/Intune

Job description

Required Languages:

modern C++ (C++17/20) and Swift 6 (async/await, actors, strict concurrency checking). Also Objective-C++ to bridge Swift, C++ and C APIs. macOS systems programming: Foundation and CoreFoundation, GCD and pthreads, POSIX/BSD APIs, Mach IPC, launchd daemons and agents, and XPC (C API and NSXPCConnection).

Performance, debugging and test:

• o Profiling CPU and memory with Instruments and os_signpost.
• o Debugging with LLDB, crash logs and os_log.
• o XCTest, sanitizers, fuzzing, and xcodebuild-based CI.
• o Apple Silicon and Intel. Experience with codebases shared across Mac, Windows and Linux.

Core skills (one or more of the areas listed below)

Process model and IPC: launchd daemons and agents, and XPC (C API and NSXPCConnection).

Endpoint Security and System Extensions: Endpoint Security clients handling both blocking (AUTH) events and notification events, user/MDM approval, upgrades.

Network Extension: content filters, both flow-level (NEFilterDataProvider) and packet-level (NEFilterPacketProvider), and Network.framework.

Security and crypto: Verifying code signatures (SecCode / SecStaticCode) and validating certificates (SecTrust), Keychain, Entitlements, hardened runtime, and macOS privacy permissions.

Devices and storage: IOKit (hardware and device enumeration) and DiskArbitration (disk and volume events).

Packaging and deployment: installers, notarization, and MDM configuration profiles deployed through Jamf, Intune or similar tools.

Performance, debugging and test: Profiling CPU and memory with Instruments and os_signpost, Debugging with LLDB, crash logs and os_log, XCTest, sanitizers, fuzzing, and xcodebuild-based CI.

Nice to have UI:

SwiftUI and AppKit apps and app extensions. Testing against macOS and Xcode betas before public release. Experience shipping EDR/AV, network security or device-management products. Originally posted on Himalayas