Windows Kernel Driver Engineer (Minifilter)

Location: Pune, MH or Gandhinagar, GJ

Experience: 5–10 years

Employment Type: Full-time

About the Role

ATRI Solutions is looking for a Windows Kernel Driver Engineer to develop Everest's Windows kernel-mode component — a minifilter driver that intercepts file system I/O (IRPs) to enable transparent, seamless cloud tiering of surveillance video, functionally mirroring the Linux KMD.

Key Responsibilities

- Design and implement a Windows minifilter driver using the Windows Driver Kit (WDK)
- Handle and complete IRPs (IRP_MJ_READ, IRP_MJ_WRITE, IRP_MJ_CREATE, etc.), including the option to pend I/O and complete asynchronously after a cloud fetch
- Write robust kernel-mode C/C++ respecting IRQL constraints, cancellation, and rapid-mutex/spinlock synchronization
- Debug driver issues using WinDbg, kernel dumps, and Driver Verifier
- Manage filter altitude registration and interaction with other filters in the I/O stack
- Ensure every code path that acquires a lock or resource releases it correctly, including newly-reachable paths introduced by feature changes
- Support driver signing, HLK/WHQL testing,



and safe install/upgrade/uninstall lifecycle

Mandatory Skills

- Windows Driver Kit (WDK) minifilter driver development experience
- Strong understanding of IRP handling and completion routines (including pending/async completion)
- Proficient C/C++ kernel-mode programming
- Kernel debugging with WinDbg (dumps, breakpoints, !analyze)
- File system filter driver architecture, including altitude/registration concepts
- Kernel-mode synchronization primitives (spinlocks, fast mutexes) and IRQL-aware coding
- Familiarity with driver signing and HLK/WHQL testing/certification processes

Good-to-Have

- Comparative architecture knowledge of ProjFS/CFAPI (cloud-file-provider style approaches)
- Experience with Storport/miniport or other Windows driver classes
- WPP/ETW tracing experience for production diagnostics
- Prior work on hierarchical storage management (HSM) or backup-tiering drivers

Pay: From ₹800,000.00 per year

Benefits:

- Flexible schedule
- Provident Fund

Work Location: In person

📌 Windows Kernel Driver Engineer (Minifilter) (India)
🏢 Atri Systems
📍 India