BENGALURU · FULLTIME
Software Engineer - Active Directory Internals & Directory Services
Cohesity
Bengaluru · onsite · Posted 12d ago
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Undisclosed4–7 yrsfulltimeBengaluru
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Section · 01
About this role
Job Summary
Responsibilities
Requirements
Schema Replication
Directory Access
Object Lifecycle
Identity Continuity
Group Policy DNS
Safe Writes
Nice to Have
Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.
Were 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.
Responsibilities
- Design and implement the directory engine that discovers, tracks, and safely applies changes to Active Directory objects.
- Build robust change-tracking pipelines using DirSync , USN cookies , and change notification , handling cursor persistence, catch-up, and re-sync correctly.
- Implement correct object lifecycle handling - tombstones, deleted-object lifetime, and Recycle Bin semantics - for accurate backup and recovery.
- Guarantee identity continuity across operations: SID, SID history, and GUID preservation and validation.
- Implement safe write paths - modify, ModifyDN, and object creation - with idempotency, conflict handling, and integrity guarantees.
- Work with AD-integrated DNS and Group Policy internals to ensure complete, consistent capture and restore.
- Diagnose and resolve complex replication, consistency, and LDAP edge cases in production environments.
Requirements
You should have hands-on, internals-level expertise across most of the following:
Schema Replication
- AD schema, object classes, and linked-value replication
- Replication metadata, USN semantics, and consistency reasoning
Directory Access
- LDAP search and controls, including paged and persistent search
- DirSync , USN cookies , and change notification for change tracking
Object Lifecycle
- Tombstones , deleted-object lifetime, and AD Recycle Bin behavior
Identity Continuity
- SID , SID history , and GUID continuity semantics across domains and restores
Group Policy DNS
- Group Policy internals: GPC / GPT and SYSVOL
- AD-integrated DNS zones and records
Safe Writes
- Correct and safe modify , ModifyDN , and object-create operations
Nice to Have
- Experience building backup, replication, disaster-recovery, or migration tooling for Active Directory.
- Familiarity with Entra ID / Azure AD hybrid environments.
- Depth in C/C++, C#, Go; systems-level performance work.
- Experience operating against large, multi-domain / multi-forest deployments.
Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.
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Section · 02
Skills
DNSGroup PolicyActive Directorybackup and recoverydata privacyldapamazon web servicesdata protectioncursormetadataNvidiaDirectory servicesEntra IdAzure ADcloudData SecurityLegalCiscoData ProcessingMicrosoft AzureArtificial Intelligence
Section · Company
About Cohesity
Cohesity
Software Product
1001-5000
employees
2013
13 years old
San Jose,California
United States
About
Cohesity specializes in data management solutions, focusing on simplifying data operations for organizations to maximize value.
Industries
Software ProductInternet
Employee ratings
684 reviews
3.9/ 5
Culture
3.9
Career growth
3.2
Work-life
4.0
Employees rate it well for
Work Life Balance131Work Culture117Senior Management86Salary71Job Security56
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