Required Qualifications:

• Bachelor's Degree in Computer Science or related technical field AND 8+ years of software engineering with deep expertise in C and C++ for Windows kernel-mode development.  .
  • OR equivalent experience.
• Hands-on experience with Windows storage driver stack: StorPort miniport drivers, storage filter drivers, or file system minifilter drivers — understanding of IRP flow, completion routines, and cancel-safe queue management.
• Solid grounding in Windows kernel fundamentals.
• Demonstrated ability to perform crash dump analysis and live kernel debugging using WinDbg.
• Working knowledge of NTFS on-disk structures: MFT record layout, attribute types, USN journal, and the NTFS log file for crash recovery.
• Familiarity with ReFS (Resilient File System): B+ tree metadata structure, integrity streams, block cloning, and the differences in crash recovery model versus NTFS.
• Experience debugging file system corruption scenarios: cross-linked clusters, orphaned MFT records, directory entry inconsistencies, and reparse point cycles.
• Understanding of Windows file system minifilter architecture: altitude registration, pre/post operation callbacks.
• Hands-on experience with Windows Server Failover Clustering (WSFC): quorum models (Node Majority, Disk Witness, Cloud Witness), cluster network configuration, and the cluster API.
• Deep understanding of Cluster Shared Volumes (CSV): CSV file system (CSVFS) redirected vs. direct I/O modes, CSV ownership arbitration, and coordination with the Storage Bus Layer.
• Experience with Storage Spaces Direct (S2D): storage pool creation, virtual disk provisioning, cache tier architecture (NVMe + SSD + HDD), fault domain awareness, and rebuild/rebalance behavior under node and drive failure.
• Familiarity with storage connectivity protocols in clustered environments: SMB Direct (RDMA), iSCSI multipath (MPIO/DSM), NVMe-oF, and Fibre Channel HBA integration with StorPort.
• Proven ability to work high-urgency customer escalations (ICMs / CritSits): triage under time pressure, communicate root cause to non-technical stakeholders, and deliver targeted fixes through the Windows servicing pipeline.
• Experience reading and interpreting Storage Spaces diagnostic packages, cluster logs, and ETW traces (StorPort, ReFS, NTFS providers) to reconstruct failure timelines.
• Familiarity with Microsoft Support tooling: ProcMon/xperf captures, and WPA (Windows Performance Analyzer) for I/O latency profiling.

Preferred Qualifications:

• Experience with Azure Stack HCI: S2D on validated hardware, stretched clustering across sites, Azure Arc integration, and software-defined storage policy management.
• Knowledge of NVMe specification internals: submission/completion queue mechanics, NVMe error log page analysis, and namespace management — beyond just driver-level consumption.
• Familiarity with SMB protocol internals (SMBv3): persistent handles, witness service (SWN), transparent failover, and scale-out file server (SOFS) architecture.
• Experience with deduplication and compression engines (Windows Data Deduplication): chunk store architecture, scrubbing, and garbage collection edge cases.
• Knowledge of Windows BitLocker full-volume encryption integration with clustered storage and its interaction with CSV and S2D volumes.
• Published CVE credits, conference presentations, or technical blog posts on file system or storage security topics.
• MS/BS in Computer Science, Electrical Engineering, or a closely related field.

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This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.