Senior macOS Internals Lead Engineer - Remote

Overview

Our client is a US based security company looking for a Senior macOS Internals Lead Engineer to drive the development of low-level security and compatibility functionality. You will lead a team of exceptional engineers while remaining deeply hands-on—writing code, reverse engineering OS behavior, and directly owning key system-level components.

In Short

• Design and implement security features using macOS frameworks such as Endpoint Security and Network Extensions.
• Reverse engineer macOS internals and application interactions to enhance product compatibility and security.
• Develop, debug, and optimize complex system-level code in C++, Swift, and Objective-C, adhering to secure coding best practices.
• Investigate and resolve issues related to macOS system extensions, launch services, XPC, and sandboxing.
• Act as a force multiplier by reviewing team designs and code, offering architectural direction, and coaching team members on best practices.
• Document technical findings, architectural designs, and implementation details.
• Collaborate with QA, product, and support teams to ensure high-quality, secure, and testable deliverables.
• Stay updated on macOS updates and security mechanisms in order to inform development.

Requirements

• Deep understanding of macOS internals.
• Experience in reverse engineering.
• Strong coding skills in C++, Swift, and Objective-C.
• Ability to mentor and lead a team.
• Familiarity with secure coding practices.
• Experience with system-level programming.
• Strong problem-solving skills.
• Excellent documentation skills.
• Ability to collaborate effectively with cross-functional teams.
• Passion for staying updated on technology trends.

Benefits

• Opportunity to work on cutting-edge security technology.
• Collaborative and dynamic work environment.
• Opportunity for professional growth and development.
• Competitive salary and benefits package.
• Flexible work arrangements.