Software Development Engineer, Siri Runtime Systems and Interaction

Apple
Seattle, United States of America2026-04-29

About the job

In this role, you will be at the forefront of designing, building and integrating the next generation of Siri that is responsive, deterministic and low-latency. You will focus on new features, system integration to optimize performance for low-latency interaction as well as exceptional battery life, and help develop intelligent experiences into people’s daily lives. This is a highly cross functional role requires collaborating with with engineers across software, hardware and silicon to create these experiences that leverage the latest advancements in Large Language Models (LLMs), on-device execution and distributed execution.

Responsibilities

Design, develop and maintain the robust on-device runtime for Siri.

Implement scalable, maintainable, and highly testable code, ensuring best practices in engineering.

Contributing to architecture decisions, design reviews and peer code reviews.

Debug, optimize, and profile system performance to ensure high-quality, responsive interactions.

Leverage GenAI-based tooling to enhance engineering productivity, code quality, and efficiency at scale.

Qualifications

Minimum

Strong programming skills in either of C++, Swift or ObjectiveC.

Strong problem solving skills and comfortable dealing with ambiguity

Excellent communication and presentation skills.

Bachelors in Computer Science/related disciplines.

Preferred

Experience with Swift/C++/ObjectiveC for building and designing production quality software.

Experience with developing and optimizing algorithms that run efficiently on resource constrained platforms

Experience with API design or framework development

Experience with systems and kernel programming

Exposure to tools and workflows related to debugging, memory profiling, performance optimization

Masters or PhD degree