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Sony Interactive Entertainment · 5 days ago

Senior Software Engineer

Aliso Viejo, CA

Full-time

Onsite

Senior Level

$177K/yr - $266K/yr

5+ years exp

Sony Interactive Entertainment is a global leader in entertainment known for its PlayStation products and services. The Senior Software Engineer will design and build advanced performance testing and monitoring tools to optimize system performance across various environments.

Consumer GoodsMusicVideo Games

Work & Life Balance

H1B Sponsor Likely

Responsibilities

Design, build, and own a performance tooling suite across CPU/DPU/PCIe

Develop load generators to saturate PCIe, NICs, and storage paths; model real-world and worst-case network/storage traffic

Instrument the stack with Linux perf, ftrace, and eBPF to capture timings, contention, cache/memory effects, and I/O paths

Create repeatable experiments to characterize throughput, latency, jitter, tail behaviors, and scalability limits

Build automated performance testbeds and CI pipelines that run on every change (smoke, regression, soak, and chaos scenarios)

Establish golden signals, SLOs, and dashboards; visualize trends and regressions for fast triage

Perform deep root-cause analysis across userspace, kernel, drivers, and firmware; propose and land fixes

Collaborate with kernel, networking, storage, and hardware teams to optimize across the x86-64 microarchitecture and PCIe topologies

Qualification

Linux performance monitoringC/C++/Rust programmingPCIe knowledgePerformance testing toolsAutomation scriptingX86-64 microarchitectureRoot-cause analysisProblem ownershipCuriosity for techJapanese languageCommunication skills

Required

BS in Computer Science / Software Engineering, or 5+ years building low-level performance and load-testing tools

Proficiency in one or more systems languages (C/C++/Rust) and scripting for automation (Python/Bash)

Mastery of Linux performance monitoring & tracing (perf, ftrace, eBPF/bcc/libbpf) in production environments

Deep understanding of the x86-64 microarchitecture

Strong knowledge of PCIe (link training, lanes, bandwidth math, peer-to-peer, DMA) and device/driver interactions

Comfort navigating kernel/userspace boundaries, syscalls, io_uring, and zero-copy I/O

Experience building reproducible experiments, analyzing large trace datasets, and communicating insights clearly

Excitement for open-ended problems, turning fuzzy ideas into solutions

Curiosity for emerging tech, including AI dev tools and introducing those that are pragmatic and boost developer velocity

Preferred

DPU/NIC experience (e.g., queues, RSS, offloads, AF_XDP, SmartNICs/BlueField)

High-performance I/O: DPDK, SPDK, NVMe/NVMe-oF, RDMA/RoCE, iSCSI, storage stack tuning

Observability stacks (e.g., perf ETM, BPF ring buffers, Prometheus/Grafana, OpenTelemetry) and flamegraph tooling

You take ownership of problems and feel empowered to fix them

You spot gaps, draft solutions, and rally teammates without waiting for detailed specs

You stay calm when priorities change (they will), communicate trade-offs, and keep momentum

Thrive in fast iterative cycles with quick reviews that drive continuous improvement and progress

Knowledge of Japanese language and culture is a plus

You enjoy playing video games!

Benefits

Medical

Dental

Vision

Matching 401(k)

Paid time off

Wellness program

Coveted employee discounts for Sony products

Bonus package

Company

Sony Interactive Entertainment

Sony Interactive Entertainment is responsible for the PlayStation brand and family of products and services.

Founded in 1993

San Mateo, California, USA

10001+ employees

https://www.sie.com

H1B Sponsorship

Sony Interactive Entertainment has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (290)

2024 (258)

2023 (208)

2022 (279)

2021 (210)

2020 (213)