Senior Software Engineer, System - Calendar

Senior Software Engineer, System Experience - Calendar Experience

Cupertino, California, United States – Software and Services

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!

• 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 yers of Swift UI in production environment
• Proficiency with concurrency and state management on Apple platforms (GCD, Operation Queue, async/await).
• 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.

• 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.
• Collaborative mindset, thriving on working with, learning from, and mentoring teammates across diverse backgrounds.

Base pay is one part of our total compensation package and is determined within a range. The base pay range for this role is between $147,400 and $272,100, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become Apple shareholders through discretionary employee stock programs. Employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in the Employee Stock Purchase Plan. You’ll also receive comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and reimbursement for certain educational expenses, including tuition.

Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.

At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong.