Senior AI Software Engineer, App Intelligence

Do you want to build the layer that lets every app on the device do its best work for the user through Siri? App Intelligence is the on-device system that turns app capabilities into things a user can simply ask for - and makes the assistant reliable enough to be trusted with them. We are engineers, scientists, and problem solvers bringing smarter, faster, and more natural interaction with apps to Siri. We are looking for seasoned AI Software Engineers to join our team and be part of this mission. In this role, you will be at the forefront of developing software on device that enables Siri to deliver on app Intelligence throughout the OS. We bring app intelligence to Siri by working directly with app teams to understand what their apps can do, modeling those capabilities so an assistant can use them well, and building the on-device software that makes the resulting experiences reliable and fast. We partner closely with the team that builds Siris planning and execution engine, and we work the app side of that partnership: what apps can offer, how they express it, and whether the resulting experience is good enough to trust.

Software Engineering, Artificial Intelligence (AI), Apple Siri, Software Development, Software Engineering, Problem Solving Skills, Operating Systems, Artificial Intelligence (AI), Telemetry, Memory Hardware, changes to help features scale Proactively look for areas of code to further optimize for performance, and hold on-device latency, memory, and power budgets Leverage agentic coding to enhance engineering productivity, code quality, and efficiency at scale4+ years experience developing and shipping production software Strong proficiency in Swift, Objective-C or C++ Experience building product features on top of large language models - designing tool and function-calling interfaces, constructing context, and validating model output Fluency with agentic coding tools for accelerating engineering productivity, with good judgment about where to apply them and how to verify what they produce Exceptional problem-solving skills, and the ability to drive alignment across teams on shared API surfaces Proven ability to excel in a fast-paced development teamExperience designing and developing systems that are efficient in resource constrained environments - latency, memory, and power budgets on device Experience building the scaffolding around models - tool interfaces, retrieval and context construction, output validation - with strong intuition for model behavior and failure modes Experience building key software components and APIs used cross functionally across different applications and platforms, including versioning and compatibility of interfaces that shipped clients depend on Experience with evaluation, benchmarking, and telemetry for systems whose output is probabilistic rather than deterministic