Senior Software Engineer (Linux Ublk)

Why PlayStation

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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 iouring. 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 iouring 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 iouring 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.

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.