# Senior Endpoint Engineer, Data Security at Ent

- Company: Ent
- What the company does: 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.
- Company website: https://ent.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: Remote
- Work setup: Remote
- Posted: 2026-09-04
- Apply by: 2026-10-19
- Apply: https://jobs.ashbyhq.com/ent-security/96645326-b2d2-418f-a5f2-0c091f02182c
- Page: https://www.1752.vc/careers/jobs/ent-senior-endpoint-engineer-data-security/

## About the role

We are seeking an Endpoint Engineer to be part of the team that owns Ent's data protection layer on the device: classifying sensitive data, tracing how it moves, and enforcing policy at the moment of egress — including to AI tools and agents. This role pairs classic content inspection with Ent's on-device small language model, so enforcement reflects what a person is trying to do and not only what a file contains. Precision is the product here.

## What they're looking for

- 5+ years shipping production systems software in C/C++, including work on an endpoint agent deployed at enterprise scale
- Direct experience building or operating an endpoint for insider-risk, data-security, or CASB/SASE data-protection product
- Strong operating system internals knowledge on at least one platform: file system filtering, process and handle interception, and the user/kernel boundary
- Hands-on content inspection and data classification work: pattern-based detection, fingerprinting and hashing schemes, file format parsing, and handling of archives and Office/PDF container formats
- Experience controlling device and network egress channels — USB and removable media, print, clipboard, HTTPS upload
- Multi-threaded, performance-sensitive engineering against measured latency and throughput budgets

Tags: R&D