Senior Software Engineer, Storage Systems

ByteDance; San Jose (CA); On-site; USD 162,000 - 388,000; Full time

Job summary

ByteDance is seeking a Senior Software Engineer, Storage Systems in San Jose to optimize the Linux storage path, spanning the block layer, file systems, NVMe, and device drivers. You will own storage features, diagnose complex production issues, and collaborate across hardware, validation, and production teams.

The role emphasizes performance, reliability, and data integrity, with responsibilities from measurement to implementation and upstream contributions.

Qualifications

• 3+ years of professional experience in C or C++ systems programming on Linux.
• Deep understanding of the Linux I/O path and hands-on experience in NVMe, HDD, SATA SSD, AHCI, HBA, RAID, block layer, file systems, device drivers, memory management, caching, or I/O scheduling.

Responsibilities

• Analyze the performance bottleneck and optimize Linux storage components across block I/O, file systems, NVMe, device drivers, caching, and relevant user-space services.
• Diagnose failures or exceptions across devices, PCIe, firmware, kernel, memory, networking, runtimes, and applications; drive root-cause analysis through verified resolution.
• Characterize workloads and use tracing, profiling, telemetry, logs, and hardware counters to identify latency, throughput, utilization, and scalability bottlenecks.
• Improve reliability through fault detection, isolation, retry, timeout, reset, failover, recovery, regression detection, and graceful degradation mechanisms.
• Own storage features from workload requirements and architecture through coding, integration, qualification, rollout, and sustained support.
• Create automated correctness, performance, endurance, stress, fault-injection, and compatibility tests for new hardware and software releases.
• Partner with device, firmware, kernel, server, network, validation, production, and workload teams to deliver storage capabilities into production.
• Review designs and code, document performance and recovery behavior, and contribute upstream where maintained community interfaces are the right solution.

Skills

C/C++

Linux I/O path

NVMe

File systems

Device drivers

Education

Bachelor's degree in Computer Science/Engineering or equivalent

Job description

Senior Software Engineer, Storage Systems

Location:

San Jose

Team:

Technology

Employment Type:

Regular

Job Code:

A22100A

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Responsibilities

About the TeamWe are a systems software team building the foundational software for large-scale compute platforms. We work at the hardware/software boundary across the Linux kernel, accelerators, storage, firmware, and platform validation. We value rigorous engineering, clear interfaces, measurable performance and reliability, and upstream collaboration where appropriate. The team partners closely with hardware, architecture, product, validation, and production engineering groups to move new capabilities from design through dependable deployment.About the RoleYou will analyze the performance bottleneck and optimize the Linux storage path for high-performance, reliable compute platforms. Your work will span the block layer, file systems, NVMe and device drivers, memory and I/O interactions, observability, and failure recovery. You will own substantial storage features and difficult production issues from measurement through implementation and validation, with clear accountability for latency, throughput, availability, and data integrity.Responsibilities- Analyze the performance bottleneck and optimize Linux storage components across block I/O, file systems, NVMe, device drivers, caching, and relevant user-space services.- Diagnose failures or exceptions across devices, PCIe, firmware, kernel, memory, networking, runtimes, and applications; drive root-cause analysis through verified resolution.- Characterize workloads and use tracing, profiling, telemetry, logs, and hardware counters to identify latency, throughput, utilization, and scalability bottlenecks.- Improve reliability through fault detection, isolation, retry, timeout, reset, failover, recovery, regression detection, and graceful degradation mechanisms.- Own storage features from workload requirements and architecture through coding, integration, qualification, rollout, and sustained support.- Create automated correctness, performance, endurance, stress, fault-injection, and compatibility tests for new hardware and software releases.- Partner with device, firmware, kernel, server, network, validation, production, and workload teams to deliver storage capabilities into production.- Review designs and code, document performance and recovery behavior, and contribute upstream where maintained community interfaces are the right solution.

Qualifications

Minimum Qualifications- Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent practical experience.- 3+ years of professional experience in C or C++ systems programming on Linux.- Deep understanding of the Linux I/O path and hands-on experience in at least two relevant areas: NVMe, HDD, Sata SSD, AHCI, HBA, RAID, block layer, file systems, device drivers, memory management, caching, or I/O scheduling.- Experience analyzing storage performance with reproducible benchmarks, tracing tools, telemetry, and statistically sound comparisons.- Demonstrated ability to debug production failures across kernel, firmware, device, and service boundaries.- Experience delivering well-tested software in collaboration with hardware, validation, and production teams.Preferred Qualifications- Experience with high-performance or distributed storage for data-center, cloud, high-performance computing, database, or AI workloads.- Knowledge of PCIe, NVMe over Fabrics, direct I/O, asynchronous I/O, DMA, NUMA, persistent memory, or GPU-direct storage paths.- Experience contributing to upstream Linux storage or file-system communities.- Evidence of delivering measurable improvements in tail latency, throughput, recovery time, device utilization, or fleet reliability.

Job Information

The base salary range for this position in the selected city is $162000 - $387600 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

For Los Angeles County (unincorporated) Candidates:

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:

1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;

2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and

3. Exercising sound judgment.

About Us

Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Lemon8, CapCut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content.

Why Join ByteDance

Inspiring creativity is at the core of ByteDance's mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.

As ByteDancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

Reasonable Accommodation

ByteDance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request