Staff Software Engineer — Active Directory Internals & Directory Services

Cohesity is the leader in AI-powered data security. Over 13,600 enterprise customers, including over 85 of the Fortune 100 and nearly 70% of the Global 500, rely on Cohesity to strengthen their resilience while providing Gen AI insights into their vast amounts of data. Formed from the combination of Cohesity with Veritas’ enterprise data protection business, the company’s solutions secure and protect data on-premises, in the cloud, and at the edge.

Backed by NVIDIA, IBM, HPE, Cisco, AWS, Google Cloud, and others, Cohesity is headquartered in Santa Clara, CA, with offices around the globe. We’ve been named a Leader by multiple analyst firms and have been globally recognized for Innovation, Product Strength, and Simplicity in Design , and our culture . Want to join the leader in AI-powered data security?

About the Role We're looking for an engineer who understands Active Directory the way its designers do — not just how to administer it, but how it actually works underneath: how objects replicate, how changes are tracked, how deletions age out, and how identity continuity is preserved across restores. You'll build and harden the core engine that reads, tracks, and safely writes AD state, powering reliable backup, synchronization, and recovery at scale. This is a deep-systems role.

If you've ever debugged a replication metadata mismatch, reasoned about USN rollback, or cared about SID history surviving a cross-domain restore, you'll be at home here. What You'll Do Design and imp