iOS Software Development Engineer, Proactive - On-Device
Apple
Software Engineering
Santa Clara, CA, USA
USD 147,400-272,100 / year + Equity
Posted on May 1, 2026
AI represents a unique opportunity to elevate Apple’s products and revolutionize the way hundreds of millions of people access information on their devices. Our team is pushing the boundaries of Apple Intelligence and innovative search technologies, all while running a low latency production service and keeping user privacy at the forefront. We are looking for a software engineer to build and maintain infrastructure powering on-device search technologies across Apple's ecosystem. In this role, you'll collaborate with world-class teams in machine learning, natural language processing, and platform infrastructure to deliver private, fast, and intelligent user experiences. Your work will directly impact how users interact with information across iPhone, iPad, Mac, and more.
As an Infrastructure Engineer on our team, you will play a critical role in supporting on-device systems and models that power Apple’s personal search capabilities. Our team owns models and engineering systems responsible for query understanding of users' questions about their personal content, with a focus on user privacy and efficiency. You’ll contribute to fast, scalable and privacy-preserving infrastructure, working closely with teams across NLP, application frameworks, and OS technologies. Your solutions will integrate with other Siri and Search capabilities to enable powerful user experiences. We value engineers who are passionate about infrastructure, enthusiastic about cross-functional collaboration, and motivated by the challenges of working at scale!
- Designing and maintaining robust infrastructure for on-device search systems.
- Building durable and reusable components with long-term evolution in mind.
- Collaborating across teams to adapt and optimize ML/NLP technologies for Apple’s software stack.
- Ensuring user privacy by using Apple’s secure and on-device architecture.
- 2+ years of experience in Swift, Objective-C, or C++
- Experience designing and maintaining CI/CD pipelines
- Strong scripting skills in Python, Bash, or similar
- Proficiency in automating workflows and deployment tasks
- Capable of analyzing and debugging large-scale systems and datasets
- Bachelor’s degree in Computer Science or equivalent practical experience
- Experience developing for Apple platforms
- Familiarity with profiling tools and performance optimization techniques
- Background in search, indexing, or natural language processing technologies
- Experience working on privacy-preserving infrastructure and on-device ML