CareerPlan

Software Engineer - Systems Performance, CoreOS

San Diego, United States of AmericaFull-time2026-10-14 → 2026-11-10

Core

Software developer supporting Apple's family of operating systems (iOS, macOS, tvOS, watchOS) to solve multi-faceted performance problems and improve platform capabilities for app developers.

Role type

Systems Performance Software Engineer

Builds

Tools to characterize performance issues and cross-platform compatibility solutions

Domain

Operating Systems / Mobile Platforms

Required skills

Systems design, Data-driven decision making, Unix/Linux/macOS development, Problem-solving, Critical thinking, Independent learning

Preferred skills

iOS/macOS/watchOS/tvOS/visionOS development, Operating System fundamentals, Objective-C, Swift, SwiftUI, Swift Data, Swift Concurrency

Technologies

Unix, Linux, macOS, iOS, macOS, watchOS, tvOS, visionOS, Objective-C, Swift, SwiftUI, Swift Data, Swift Concurrency

Responsibilities

Analyzing app performance issues and engaging with systems teams to resolve them; Building tools to characterize performance issues; Influencing cross-functional teams to pursue new features supporting apps

Seniority

Mid-level, hands-on IC