# Staff/Principal Software Engineer-Windows Endpoint Agent at CloudZero

- Company: CloudZero
- What the company does: CloudZero offers a cloud cost intelligence platform that enables organizations to analyze and manage their cloud expenditures. Backed by Underscore VC.
- Company website: https://cloudzero.com
- Type: Startups
- Level: Principal and up
- Location: Remote
- Work setup: Remote
- Pay: $220K to $290K base salary per year (USD)
- Posted: 2026-08-31
- Apply by: 2026-10-15
- Apply: https://jobs.ashbyhq.com/CloudZero/c88a68f3-8d84-4925-b7bb-95f7cf45ae9a
- Page: https://www.1752.vc/careers/jobs/cloudzero-staff-principal-software-engineer-windows-endpoint-agent/

## About the role

CloudZero's AI cost intelligence starts at the endpoint. Our macOS collector already captures what coding agents and AI workloads actually cost on the developer's machine: token usage, cost per workflow, latency, and where the value goes. Windows is next, and it is the platform most of our enterprise customers run on.

## What they're looking for

- Deep Windows systems experience. You have shipped software that runs as a service, a driver, or an endpoint agent on Windows, not just applications on top of it
- Kernel-mode or low-level Windows development. KMDF or WDM, the Windows Driver Kit, and comfort debugging with WinDbg
- Working knowledge of Windows networking internals, the Windows Filtering Platform or a comparable traffic interception approach
- Proficiency in C or C++ for the driver side, in Go or another systems language for the user-mode side. You can read and reason about code in a language you did not write
- Comfort spanning the stack from a kernel driver to a desktop UI, or the self-awareness to say which end is your strength and where you will lean on the team
- Hands-on experience with Windows code signing and the realities of shipping a signed kernel driver, Authenticode, EV certificates, and Microsoft's attestation or WHQL process

Tags: Engineering