Staff Software Development Engineer - macOS Endpoint- Remote

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We take care of our employees so they can take care of our customers. Customers who come from all walks of life just like us. We hire incredible people from diverse backgrounds because when we are different together, we are stronger together.

The Role

As Staff Software Development Engineer, you'll be the macOS authority for the runtime enforcement layer of our Identity Security Platform. These components decide whether to permit or deny each action an identity or AI agent attempts on a macOS endpoint.

You'll set the technical direction for enforcement on macOS and own it end to end. That means hooks that make the right call in real time, across the fleet, without breaking legitimate workloads. Peer engineers own the Linux and Windows enforcement surfaces. You share one policy language, one event schema, and one userspace agent with them, but macOS is yours.

You know this layer better than anyone. You want your code to be the thing that stops a compromised credential or a runaway AI coding agent before it impacts production.

What You’ll Do

• Design, build, and own our Endpoint Security client: process execution, file, and signal events, plus the synchronous authorization events where you allow or deny inline.
• Own the enforcement decision path: event capture from Endpoint Security, policy evaluation, and deny decisions applied within Apple's authorization deadline.
• Drive down enforce-mode latency on the authorization path as we scale across large fleets.
• Extend enforcement across network and content control: a Network Extension content filter for socket- and flow-level policy.
• Harden portability and stability across macOS versions and both Apple Silicon and Intel.
• Partner with the Linux and Windows enforcement engineers and the policy-backend team on the shared plane.
• Read requirements to find gaps and risks, propose simplifications, and explain tradeoffs to technical and non-technical stakeholders.
• Raise the engineering bar and take end-to-end ownership from design through production.
• Mentor senior and mid-level engineers on macOS systems and Endpoint Security craft.

What You’ll Bring

This is a macOS specialist role, so the depth requirements are real:

• Deep macOS system internals - the Endpoint Security framework, System and Network Extensions, the code-signing and notarization model, launchd and XPC, TCC and entitlements.
• Hands-on work with Endpoint Security for enforcement, with real comfort on the synchronous authorization path.