Sr. Firmware Engineer; FTL Job Rancho Cordova area,California USA,Software Development

Position: Sr. Firmware Engineer (FTL)
Job Title: Senior Firmware Engineer(FTL)

Job Location: Rancho Cordova, CA

Essential

Job Duties And Responsibilities:

Design and Maintain FTL Architecture

Develop and maintain the Flash Translation Layer (FTL), including I/O flow, Garbage Collection, and Wear Leveling algorithms to ensure data integrity and maximize NAND endurance.

Block Management and Metadata Handling

Implement bad block detection, isolation, and data migration mechanisms to manage block lifecycle.
Design robust metadata structures to support fast mapping table reconstruction and system boot.

Error Handling Mechanisms

Prevent and mitigate NAND-related issues such as read disturb, program/erase failures, and retention loss.
Implement RAID encode/decode flows to guarantee data reliability.

Power-Loss Protection

Design and implement power-loss protection algorithms to maintain data consistency and metadata integrity during unexpected shutdowns.
Verify and optimize power-loss recovery flow to ensure fast and reliable system startup.

Performance and Resource Optimization

Optimize channel/die/plane access scheduling and parallelism to improve throughput and reduce latency.
Enhance DRAM/SRAM usage efficiency and reduce Write Amplification for better endurance and performance.

Debugging and Validation

Develop and analyze FTL traces and logs for performance profiling and issue root-cause analysis.
Conduct stress testing, mixed workload testing, power-fail tests, and corner-case verification to ensure firmware stability and reliability.
Collaborate with Validation, Hardware, and ASIC teams to resolve cross-functional issues and ensure system robustness.

Minimum Requirements /

Qualifications:

Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or related fields.
At least 3 years work experience in each of the following:
Software/firmware applications engineering
Experience in SSD controller/firmware architecture
Strong experience in C/C++ programming and data structure
Hands on experience with JTAG/ICE debuggers
Experience with version control software like Git.
Competent to work independently as well as in a small team collaboration environment.
Must be willing to learn fast and execute as a team player.
Good oral, written and presentation skills for communication and documentation.
Ability to work independently with a minimum of day-to-day supervision.

Preferred Qualifications:

The ability to operate logic analyzer, oscilloscope and bus protocol analyzer is valuable.
Familiar with SATA/PCIe (NVMe) protocols
Familiar with NAND flash protocols
Linux system debug experience.
Fluent in reading and writing Mandarin preferred.