Ent is the intent-aware AI endpoint — reading human, AI, and app activity in real time to tell normal work from risky action and act at the moment of risk. Backed by Sequoia and Felicis.
About the role
We are seeking an Endpoint Engineer to be part of the team that owns the endpoint agent every Ent capability ships on: collection, policy evaluation, enforcement, transport, and the lifecycle machinery around them. This role is measured on the things customers only notice when they break — installs, updates, offline behavior, and resource footprint on machines you cannot log into. Every other endpoint capability depends on getting it right.
What they're looking for
- 5+ years building production software in C/C++ or Swift, including work on native desktop or endpoint software
- Working knowledge of operating system internals and system APIs on at least one of Windows, macOS, or Linux
- Experience with software that runs unattended on machines you do not control: versioning, upgrades, backward compatibility, and failure recovery
- Solid grasp of concurrency, memory management, and empirical performance measurement
- Debugging discipline — you reproduce, instrument, and prove root cause instead of guessing at fixes
- Comfort with build systems, cross-platform CI/CD, and test automation (CMake or Bazel, GitHub Actions or equivalent), plus scripting in Python
More about this role
Ent is the intent-aware workspace security platform for securing human and AI-driven work. Built to protect productivity, the new attack surface, Ent understands not just what users and agents do but why, and intervenes at the moment of risk before incidents occur. Where existing tools see events, Ent sees intent, so security teams can step in at the moment of risk instead of investigating days later. Founded by Lou Manousos and Brandon Dixon, co-founders of RiskIQ (acquired by Microsoft) and the team behind Microsoft Security Copilot, Ent is in production with Global 2000 customers across hospitality, financial services, and defense, and backed by Decibel, Sequoia, Crosspoint Capital, Craft Ventures, Shield Capital, Felicis, and In-Q-Tel. We’re now hiring the team that will define this category.
Customer first. The product and the business are built around problems we’ve watched real security teams struggle with — not the other way around. Every roadmap conversation starts with what a CISO told us last week.
Humble. No drama. We hire people who share the mission and trust each other to deliver. Teamwork over showmanship. Accountability over politics. The work speaks louder than...
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