[Skip to main content](#main-content)

[OpenNash Jobs](https://jobs.opennash.com/)
[Hiring report](/reports/hiring/) · [All Apple jobs](https://jobs.opennash.com/companies/apple/) · [Search jobs](/search/)

Apple

# Darwin Runtime Engineer, Core OS

Cupertino, United States of America Operations 

Listed on Apple’s official careers site. Posted August 20, 2026. Check that it is still open and apply there.
[Apply on Apple’s careers site →](https://jobs.apple.com/en-us/details/200662330/darwin-runtime-engineer-core-os)

[OpenNash Jobs](https://jobs.opennash.com/) / [Apple](https://jobs.opennash.com/companies/apple/) / Darwin Runtime Engineer, Core OS

## Job description

The people here at Apple don’t just build products, we build the kind of wonder that revolutionise entire industries. Imagine what you could do here! Do you have a passion for understanding how each line of code affects all the others? In the Core Operating Systems group ensuring the OS is inseparable from each device’s identity as a whole. That’s because this group is committed to building fully integrated operating systems that combine hardware, software, and apps into a single Apple experience.

Your dedication to cross-disciplinary collaboration will help develop groundbreaking technologies, such as iOS, macOS, watchOS, and tvOS. By crafting these distinct, complete user experiences, you’ll continue to uphold and advance the excellence people expect from Apple devices! The Darwin Runtime team in Core OS is looking for enthusiastic engineers interested in developing low-level system technologies for Apple’s operating systems.

## At a glance
- Posted by the employer: Aug 20, 2026
- First seen by OpenNash: Aug 20, 2026
- Last checked: Oct 18, 2026
- Listed for: 59 days
- Location: Cupertino, United States of America[Apply on Apple’s careers site →](https://jobs.apple.com/en-us/details/200662330/darwin-runtime-engineer-core-os)

## More jobs at Apple

### [3rd Party IP Engineering Program Manager](https://jobs.opennash.com/companies/apple/jobs/d04e8da25906a35a3cfc/)

Cupertino, United States of America

### [AI Evaluations Engineer, US Decision Intelligence](https://jobs.opennash.com/companies/apple/jobs/a22a8acec6d7725a6fd8/)

Cupertino, United States of America

### [AI/ML Performance Analysis and Validation Engineer](https://jobs.opennash.com/companies/apple/jobs/c76be19361132604cc75/)

Cupertino, United States of America

### [AIML - Distinguished Engineer, Foundation Model](https://jobs.opennash.com/companies/apple/jobs/bc3c6650a69a30a3bbe0/)

Cupertino, United States of America

## Similar jobs at other companies

### [ML Runtime and Kernel Engineer - Core ML](https://jobs.opennash.com/companies/cerebras-systems/jobs/8b046097b0c827cce52a/)

Cerebras Systems · Sunnyvale, CA

### [Staff Software Engineer, BigQuery Processing Core Runtime](https://jobs.opennash.com/companies/alphabet/jobs/c3057e683047ea35f00c/)

Alphabet · Kirkland, WA, USA +1 more

### [Director, Core Runtime & Platform Engineering](https://jobs.opennash.com/companies/ford-motor/jobs/2ab04391028b1009987a/)

Ford Motor · Palo Alto, CA, United States

### [Runtime/Driver Software Development Engineer, Neuron Runtime](https://jobs.opennash.com/companies/amazon/jobs/95640a44f00e91942930/)

Amazon · US, TX, Austin

### [Neuron Runtime Software Development Engineer, Neuron Runtime](https://jobs.opennash.com/companies/amazon/jobs/465d622e4bcd02a04e96/)

Amazon · US, CA, Cupertino

[Operations jobs](/functions/operations/)

OpenNash lists jobs from employers’ own careers sites and does not handle applications.
Dates come from the employer where stated; “first seen” and “last checked” are our own observations.

OpenNash Jobs · Official listings with dates and links to the employer. [Weekly hiring report](/reports/hiring/) · [Methodology](/methodology/)