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Apple

Senior OS Software Engineer, Evaluation

3 weeks ago• Seattle, WA
Viewed on February 1, 2026
Apply on company site

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

View Company Profile:

We are looking for an experienced software engineer to build Experimentation platforms to empower Apple engineers in delivering great user experiences. We are addressing key challenges to accelerate the adoption of ML across all the OSes and Apple products/services operating at the scale of 2+ billion devices. Our work is complex, challenging and highly visible. Collaborate with Data & ML engineers to build on-device ML daemons & frameworks for Apple's most exciting applications & services.

Description:

You will be responsible for implementing features & building frameworks for online experimentation systems for Apple's use internally, across all our operating systems. You will possess strong skills in object-oriented software design and programming. Performance analysis and tuning will also be a significant responsibility in your job. You are excited about developing new features, maintaining existing code, fixing bugs, and contributing to overall system design. You'll ship code that runs on the devices you use every day and powers a variety of Apple products.","responsibilities":"Build Machine Learning & Experimentation platforms to empower engineers in delivering great user experiences. Address key challenges to accelerate the adoption of A/B testing across all the OS and products/services.

Preferred Qualifications:

Experience building widely adopted APIs

Software engineering in large-scale systems a plus

An appreciation how a platform design impacts end-user experience

Minimum Qualifications:

Exceptional development experience for 3+ years at the systems level with Objective-C, Swift

Strong understanding of iOS, macOS fundamentals and frameworks

Experience with daemon and framework development

Proven ability to deliver iOS/macOS production grade software

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Strong written and verbal communication skills

Thorough understanding of scalability, reliability, power and performance on iOS

Experience in experimentation or A/B testing, machine learning a plus

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): Seattle, WAJob ID: apple-200632629-3337_rxr-660Employment Type: OTHERPosted: 2026-01-07T19:13:48Apply on company site

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