As a Systems Software Engineer, you will develop, debug, and maintain an in-house virtualized infrastructure platform. Your responsibilities will include:* Designing, implementing, and optimizing virtualized compute offerings across a range of hardware types* Developing, implementing, and debugging robust, scalable, and highly available services that support fleet operations and infrastructure management solutions tailored to Apple's unique workloads* Working on reliability, scalability, resilience, security, and performance limits of infrastructure services, while maintaining curiosity about system operation and failure* Collaborating with Software and Hardware teams to tackle and resolve complex issues across virtualization, and networking layers, ensuring robust performance, stability, and security* Developing benchmarks representative of real workloads, analyzing and improving scale, troubleshooting performance efficiency and resilience issues, and fine-tuning performance of low-latency, high-throughput virtualized workloads* Conducting root cause analysis for on-server system failures and implementing preventive measures* Collaborating with cross-functional teams across Apple to understand, integrate, and optimize critical workloads into our platform* Participating in software release qualifications and large-scale software and hardware upgrades to production clusters* Participating in a business-hours rotation for platform issue responses and same-day resolution