Sr.

Software OS Developer Engineer:

3 weeks ago• Cupertino, CA
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About Us

Working at Apple means doing more than you ever thought possible and having more impact than you ever imagined.
Size: 10000+ employees

Industry: Technology, Information Technology, Software, Consumer Goods & Services

How do we get the right diagnostic data to improve the quality of Apple products and software? This is the most important question that the Stability Engineering OS Team strives to answer each day. We are looking for an exceptional senior engineer to architect and build our OS diagnostic collection services.

You will own critical components of our diagnostic infrastructure and work with engineers across Apple to develop and enhance operating system code that supports our mission. We write code for all Apple platforms (iOS, tvOS, watchOS, visionOS, and macOS). Your code will ship on millions of devices used worldwide, directly impacting the quality and reliability of Apple products.

Description:

As a senior member of the team, you will take ownership of critical diagnostic infrastructure components and drive technical decisions that shape our data collection strategy. You'll architect solutions that perform efficiently within the constraints of all Apple platforms, with

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You will mentor other engineers, lead technical design reviews, and collaborate closely with teams across Apple to ensure our diagnostic systems provide the insights needed to continuously improve product quality. Your work will directly influence how Apple identifies, diagnoses, and resolves issues affecting millions of users worldwide.

Preferred Qualifications:

Experience with embedded systems or resource-constrained environments

Mobile platform development (iOS, watchOS, or similar)

Low-level OS development (kernel, daemons, system services)

Experience with telemetry, analytics, or observability systems

Crash analysis and symbolication experience

Contributions to open-source projects

Familiarity with differential

Minimum Qualifications:

BS in Computer Science or equivalent work experience

7+ years of experience writing sophisticated, performant code in C, Objective-C, or Swift with proven ability to test, debug, and productize at scale.

Strong object-oriented and systems software design skills with experience architecting large-scale systems or services.

Deep expertise in systems programming with meaningful development experience on iOS, macOS, or POSIX-compliant systems.

Proven software engineering skills including version control, code review, unit testing, and CI/CD practices.

Excellent debugging skills with hands-on experience using debugging and tracing tools (LLDB, DTrace, Instruments, etc.).

Understanding of Experience with performance optimization under constrained environments (memory, CPU, battery, network).

Demonstrated ability to mentor junior engineers and provide technical leadership.

Strong cross-functional collaboration skills working with QA, Product, Security, and other engineering teams.

Excellent written and verbal communication skills with ability to articulate complex technical concepts.

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. Learn more about your EEO rights as an applicant .

Client-provided location(s): Cupertino, CA

Job ID: apple-200637290-0836_rxr-660

Employment Type: OTHER

Posted: 2026-01-07T19:13:49
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Perks and Benefits

Health and Wellness

Parental Benefits

Work Flexibility

Office Life and Perks

Vacation and Time Off

Financial and Retirement

Professional Development

Diversity and Inclusion

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