macOS Systems & Security Engineer (Swift/Objective-C/C++)

Role overview

Design and evolve low-level macOS components for a cybersecurity product focused on identity, authentication, and endpoint protection. The work centers on operating system integration and security-sensitive services, with a principal-level individual contributor shaping architecture alongside engineering, security, and product partners.

Responsibilities - Build and maintain systems software that runs close to macOS internals. - Develop capabilities for authentication, identity assurance, and endpoint security. - Implement and support privileged services and secure communication between application and system components. - Work with native macOS facilities such as XPC, launch agents and daemons, Keychain, Authorization Services, and System Extensions. - Contribute to cryptographic functions, enterprise endpoint deployment, and technical direction.

Requirements - Deep knowledge of macOS internals and native security frameworks. - Strong systems programming experience with Swift, Objective-C, or C++. - Experience with security-sensitive software, privileged processes, and secure component communication. - Sound software engineering judgment for systems where reliability and security are critical. - Ability to influence architecture and collaborate with technical stakeholders.

Benefits and work setup - Full-time contractor engagement, fully remote across Latin America. - English proficiency at B2 or C1 level.