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Senior MacOS Internals Lead Engineer

12 hours, 16 minutes ago
United Kingdom, Germany, Poland, Portugal, Spain, Israel
Full-time
Lead
Technical Lead
Software Development
C# C++ macOS .NET Objective-C Swift
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Sur Global Services

Sur Global Services

Sur Global Services specializes in facilitating nearshoring solutions, enabling businesses to outsource operations to neighboring countries, thereby enhancing their workforce efficiency and supporting growth in the evolving landscape of remote work.

IT Services
View All Jobs 19

Description

  • Design and implement macOS security features using Endpoint Security and Network Extensions.
  • Reverse engineer macOS internals and application interactions to improve product compatibility and security.
  • Develop, debug, and optimize complex system-level code in C++, Swift, and Objective-C.
  • Investigate and resolve issues involving macOS system extensions, Launch Services, XPC, sandboxing, and related system components.
  • Review team designs and code, provide architectural direction, and coach engineers on best practices.
  • Document technical findings, architectural designs, and implementation details.
  • Collaborate with QA, product, and support teams to deliver secure, testable, and high-quality releases.
  • Stay current on macOS updates and security mechanisms to guide development decisions.

Requirements

  • 7+ years of systems programming experience focused on macOS internals, frameworks, and security.
  • Proven track record of delivering complex macOS features to production with hands-on coding in C++, Swift, and Objective-C.
  • Deep expertise with macOS frameworks including Endpoint Security, Network Extensions, Accessibility, Launch Services, File Providers, daemons, XPC, and FSEvents.
  • Advanced reverse engineering skills using tools such as Ghidra, Frida, IDA, Hopper, lldb, or similar.
  • Strong understanding of macOS security mechanisms including TCC, SIP, and Gatekeeper.
  • Experience debugging complex macOS architectures such as system extensions, endpoint security, network extensions, Launch Services, and XPC.
  • Ability to produce high-quality, testable, maintainable, and secure code.
  • Nice to have: expertise with DriverKit, network protocols, proxies, and APFS/file system internals.
  • Nice to have: C# / .NET experience.

Benefits

  • Salary of $10,000 - $15,000 USD per month.
  • Holidays included.
  • Unlimited PTO.

Interested in this position?

Apply directly on the company website

Apply Now

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