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Senior Software Engineer - Linux Ublk
About the Role
At PlayStation, our Gaming, Developer & Future Technology (GDFT) Group is leading the cloud gaming revolution by putting console-quality video games on any device from TVs to consoles to mobile devices and beyond! Would you like to use your skills, time, and passion on meaningful projects that are building the future? We are seeking a highly skilled Linux Software Developer to join our engineering team. This role will focus on developing and optimizing low-level I/O subsystems, with an emphasis on Linux UBLK (Userspace Block Driver Framework) and io_uring. You will collaborate with kernel and systems engineers to design and implement efficient, scalable, and high-performance solutions for modern storage and I/O workloads.
Key Responsibilities
Design, implement, and maintain features in the Linux UBLK framework.
Develop and optimize I/O paths using io_uring for low-latency, high-throughput workloads.
Analyze, debug, and resolve performance bottlenecks in Linux I/O subsystems.
Collaborate with cross-functional teams on storage, networking, and virtualization projects.
Write clean, maintainable, and well-documented code with unit and integration tests.
Stay current with developments in the Linux kernel, storage technologies, and emerging programming paradigms.
Required Qualifications
BS in Computer Science / Software Engineering or 5+ years of relevant work experience
Strong expertise in Linux UBLK development and related kernel/user-space interactions.
Solid experience with io_uring and modern Linux I/O frameworks.
In-depth knowledge of the Linux I/O data path, including block layer and file systems.
Proficiency in C for systems programming.
Strong debugging and performance tuning skills (perf, ftrace, bpf, etc.).
Preferred Qualifications
Familiarity with DMA (Direct Memory Access) mechanisms and optimizations.
Experience with Rust for systems programming or interest in adopting Rust for safe low-level development.
Knowledge of NVMe (Non-Volatile Memory Express) protocols and storage technologies.
Contributions to Linux kernel or other open-source projects.
Strong problem-solving skills, with the ability to work independently and in a team environment.
What We Offer
Competitive compensation and benefits package.
Opportunity to work on cutting-edge Linux kernel and storage technologies.
Collaborative, innovation-driven environment with opportunities for open-source contributions.
Flexible working arrangements and strong focus on professional growth.
Please refer to our Candidate Privacy Notice for more information about how we process your personal information, and your data protection rights.
At SIE, we consider several factors when setting each role’s base pay range, including the competitive benchmarking data for the market and geographic location.
Please note that the base pay range may vary in line with our hybrid working policy and individual base pay will be determined based on job-related factors which may include knowledge, skills, experience, and location.
In addition, this role is eligible for SIE’s top-tier benefits package that includes medical, dental, vision, matching 401(k), paid time off, wellness program and coveted employee discounts for Sony products. This role also may be eligible for a bonus package. Click here to learn more.
Equal Opportunity Statement:
Sony is an Equal Opportunity Employer. All persons will receive consideration for employment without regard to gender (including gender identity, gender expression and gender reassignment), race (including colour, nationality, ethnic or national origin), religion or belief, marital or civil partnership status, disability, age, sexual orientation, pregnancy, maternity or parental status, trade union membership or membership in any other legally protected category.
We strive to create an inclusive environment, empower employees and embrace diversity. We encourage everyone to respond.
PlayStation is a Fair Chance employer and qualified applicants with arrest and conviction records will be considered for employment.
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