Senior Software Engineer, System Experience - Calendar Experience

Apple has revolutionized how people live, connect, and work, and the System Experience Calendar team aims to reimagine what a modern calendar can be across Apple’s platforms. As a senior engineer, you’ll play a pivotal role in shaping this vision, as we craft seamless experiences that help billions of people manage their lives. Working with a passionate team, you'll help solve complex problems, influence product direction, and deliver software that’s both elegant and impactful. Join us and help define the future of calendaring!

As a member of this team, you will be contributing to both platform and product. You will collaborate with engineering, data engineering, product, design, QE, automation, and other cross-functional teams in order to drive new initiatives. You should be able to thrive in a fast-paced environment with rapidly changing priorities, and have a passion for caring about Apple’s customers. You will be setting and upholding high standards for code quality, unit testing, and engineering processes. You must come with extensive app development experience, and a strong track record of architecting highly-performant applications throughout your career. You should have a good understanding of systems and excellent communication and collaboration skills!

Minimum Qualifications

• Proficient in Objective C & Swift.
• Strong command of mixed-language codebases.
• 5 years of interoperability between Objective-C and Swift in large, long-lived applications.
• 2 years of SwiftUI experience in a production environment
• Proficiency with concurrency and state management on Apple platforms (GCD, OperationQueue, Async/Await, Combine)
• Proven ability to design scalable, testable, well-structured modules for complex applications.
• Strong foundation in modern programming principles and development practices.
• Exceptional problem-solving and debugging skills, especially for complex challenges.

Preferred Qualifications

• 7+ years of engineering experience building mobile and desktop projects.
• Background in designing platform or system-level components or APIs consumed by multiple teams.
• Hands-on experience with time-based data models, iCalendar & CalDAV standards.
• Proficiency using Instruments and advanced debugging tools for memory, thread, and performance analysis.
• Drive for customer impact — you are deeply motivated to build the best user experiences for billions of users.
• Proficient in debugging rendering glitches & performance.
• Collaborative mindset, thriving on working with, learning from, and mentoring teammates across diverse backgrounds.