# Principal Support Engineer - Endpoint at Reach Industries

- Company: Reach Industries
- What the company does: We build frontier technologies and design systems that put humans and collaboration at the center. Introducing Lumi, the first Visual AI Copilot for science. Backed by Entrepreneur First and SOSV.
- Company website: https://www.reach.industries/
- Type: Startups
- Level: Principal and up
- Location: Remote
- Work setup: Remote
- Posted: 2026-08-25
- Apply by: 2026-10-09
- Apply: https://jobs.ashbyhq.com/reach/8417d0e1-ae96-4d4e-aa00-2f4981f7820a
- Page: https://www.1752.vc/careers/jobs/reach-industries-principal-support-engineer-endpoint/

## About the role

Reach Security tells organizations what their existing security tools should be doing with the products they already own — and proves it. As a Principal Support Engineer, Endpoint, you are Reach's senior domain authority on everything endpoint.

## What they're looking for

- 6+ years of deep, hands-on experience with Windows and macOS endpoint agents and endpoint security in enterprise environments — enough to have developed genuine expertise, not passing familiarity
- Time in a senior individual-contributor role such as L3 Support Engineer, Endpoint Engineer, Windows/macOS Engineer, or Security Support Engineer
- Demonstrated command of endpoint agent behavior across Windows and macOS — installation, upgrades, persistence, OS compatibility, performance, and stability — and the judgment to know what “good” looks like
- Kernel-level understanding of Windows, including ETW, WFP, memory management, process/thread behavior, and driver interactions
- macOS internals experience, including the Endpoint Security framework, System Extensions, FSEvents, MDM interactions, notarization, code signing, and process lifecycle
- A track record of analyzing endpoint telemetry, logs, and diagnostics to reach root cause in complex system interactions

Tags: Customer Support