UI Software Engineer, Cocoa

Cupertino Until 9/22/2026 First posted July 24, 2026 Last posted July 24, 2026
Job description

Why write a single app when you could help shape a million? The AppKit team is responsible for delivering the user experience on the Mac, and builds the components and APIs used by all macOS applications. We have an impact across the entire breadth of the macOS system, directly impacting the experience of every single user. Are you passionate about providing users and developers with a first-class experience? Join us, and help make the Mac better for everyone!

Description

The AppKit team is responsible for the user interface frameworks that form the heart of macOS applications. Engineers on our team are responsible for and contribute to AppKit, UIKit, and SwiftUI; building and enabling features used across the OS, such as Dark Mode, Mac Catalyst, Touch Bar, Auto Layout, and Screen Time.

We provide a wide variety of building blocks including: - Windows & layout of their content - Drawing & graphics support - Enabling new input devices and other hardware - Responding to user events - User controls like buttons, sliders, and tables - Document management infrastructure.

Minimum Qualifications

Strong object oriented programming skills
In-depth development experience at the application and user interface level with Cocoa, Cocoa Touch, Windows, Android, or Java
Ability to work collaboratively to improve designs and code
Strong knowledge of one or more of Swift, Objective C, C, C++, or Java

Preferred Qualifications

Experience building user interface frameworks
Adept at working across teams to resolve potentially conflicting requirements
Experience writing and advocating for API
Experience working with low-level graphics API like Core Image, Core Graphics, or Metal

About this role

Summary

Develops user interface frameworks for macOS applications, focusing on AppKit and related technologies.

Job title

UI Software Engineer, Cocoa

Experience level

none

Industry

software

Location requirements

Must be located in Cupertino, no remote work

Salary

Not specified

Management role

No

Skills & keywords

Required skills

Object oriented programmingCocoaSwiftObjective CC++

Preferred skills

UI frameworksAPI developmentgraphics APICross-team collaboration

Specializations

UICocoaSwiftUIgraphicsAPIs
Locations

Structured locations inferred from the posting.

Cupertino, CA, USA

On-site City