Senior Software Engineer - CloudKit Client

Summary

Apple is seeking an experienced Software Engineer to help build the next generation of cloud services infrastructure. You'll design and implement key components of the iCloud platform, integrating powerful new capabilities deep into the core of Apple's operating systems. Your work will enable entirely new applications and help scale existing ones—including iCloud Drive, Photos, Notes, FaceTime, and many more. This is an opportunity to make a significant impact. You'll collaborate with highly skilled teams dedicated to engineering excellence and deliver features that uphold strong privacy guarantees for our users.

Minimum Qualifications

5+ years of software engineering experience with strong programming skills in Objective-C and/or Swift Experience building on Apple Platforms (macOS, iOS, watchOS, tvOS, etc.) Experience in building system-level frameworks and APIs Excellent communication Bachelor's Degree in an engineering-related field or equivalent related experience

Preferred Qualifications

Experience in Swift concurrency Experience with security, privacy, and cryptography concepts Experience with event-based programming or inter-process communication is a plus Proven track record of working on rapid development cycles and shipping software on tight schedules

Description

Our team builds the on-device software that makes iCloud work. In this role, you'll focus on building CloudKit — Our privacy-focused sync and storage system. CloudKit manages user data for most Apple apps, as well as many third-party apps. You'll design and build the frameworks and daemons that support both systems, working closely with engineering teams across the company who are adopting this technology—and with colleagues who build our client and server dependencies. A strong candidate will have experience and interest in Apple platforms, ready to tackle challenges like protocol design, interprocess communication, device resource management, API design, reliability, and performance. Since so much of the user experience depends on services, we're also looking for engineers who are passionate about complex distributed systems. We value thoughtful engineering, collaborative problem-solving, and shipping work we're proud of. You'll have opportunities to deepen your expertise in distributed systems, security, and platform engineering.

Responsibilities

Collaborate with adopters to craft clear APIs Work with the network and file system stacks to build performant daemons Partner with our server counterparts to design scalable features and protocols Implement core components of the cryptographic protection of cloud data