Job Title: Linux Core Platform – Storage Development Lead

Key Responsibilities:

1. Architect & Lead Storage Subsystem Development:

· Design and lead implementation of Linux-based storage stack for embedded or server platforms.

· Define architecture for storage interfaces (eMMC, UFS, NVMe, SATA, SD, USB mass storage, etc.).

· Optimize for performance, power, and reliability on target SoC or platform.

2. Driver Development & Integration:

· Develop and maintain Linux kernel drivers for storage devices and controllers.

· Ensure upstream alignment with mainline Linux or maintain vendor-specific forks as needed.

· Integrate vendor storage controller IPs and firmware.

3. File System & Block Layer Expertise:

· Work with Linux file systems (ext4, f2fs, xfs, btrfs).

· Optimize storage stack performance using IO schedulers, caching strategies, and tuning.

4. Reliability, Data Integrity & Power Resilience:

· Implement support for journaling, wear leveling (especially for flash), secure erase, and TRIM.

· Ensure data integrity during power loss (power-fail robustness).

· Work with hardware teams on power rail sequencing and power management integration.

5. Cross-Functional Collaboration:

· Coordinate with SoC vendors, QA, product management, and firmware/hardware teams.

· Collaborate with bootloader, security, and OTA (Over-The-Air) update teams for seamless storage handling.

6. Debugging & Performance Analysis:

· Use tools like blktrace, iostat, fio, perf, strace, and kernel logs for performance and issue analysis.

· Root cause field issues (e.g., storage corruption, I/O latency) across layers.

7. Compliance & Validation:

· Validate storage against JEDEC/UFS/SD/USB/NVMe standards.

· Ensure support for secure boot, encrypted storage (dm-crypt, LUKS), and SELinux/AppArmor policies where needed.

8. Mentorship & Leadership:

· Lead and mentor a team of kernel and platform developers.

· Conduct code reviews and establish best practices for Linux storage development.

Required Expertise:

· Kernel Programming:

· Strong knowledge of Linux storage subsystems (block layer, VFS, I/O stack).

· Proficiency in C and kernel debugging techniques.

· Storage Protocols & Interfaces:

· Hands-on with eMMC, UFS, NVMe, USB mass storage, SATA, SPI-NAND/NOR, SDIO, etc.

· Understanding of storage standards (SCSI, AHCI, NVMe spec, JEDEC).

· Filesystems:

· Deep knowledge of ext4, f2fs, and familiarity with log-structured or flash-optimized file systems.

· Performance & Tuning:

· Expertise in tuning I/O performance and handling flash-specific issues (latency, endurance, etc.).

· Tools:

· blktrace, iostat, fio, perf, gdb, crash, etc.

· Security:

· Secure storage handling, key management, dm-verity/dm-crypt, rollback protection.

· Yocto/Build Systems (optional but useful):

· Understanding of build flows for embedded Linux using Yocto or Buildroot.