Staff/Sr. Software Engineer

Responsibilities

• Build and scale a performance testing platform used by developer teams across Search.
• Capture and replay production-scale traffic for development-environment load testing.
• Develop statistical and analytical methods to map development results to production behavior.
• Design load-test frameworks with configurable load shapes and concurrency control.
• Build reliable, scalable infrastructure for processing large volumes of traffic and results data.
• Use observability tooling to root-cause performance regressions.
• Collaborate with product and information intelligence teams on infrastructure powering Apple products.

Requirements

• 10+ years of software development experience, including designing, building, and operating large-scale distributed systems and backend infrastructure.
• Strong understanding of TCP/IP, DNS, and their application in large-scale systems.
• Strong fundamentals in data structures, algorithms, and system design.
• Excellent communication and collaboration skills.
• BS, MS, or Ph.D. in Computer Science or a related field, or equivalent experience.
• Preferred experience with regression analysis, capacity modeling, traffic capture and replay, configurable load shapes, concurrency control, observability tooling, Kubernetes, workflow orchestration, and CI/CD pipelines.