Software Development Engineer - Systems

Apple•Cupertino, CA

4d•$182,820 - $272,100•Onsite

About The Position

Imagine what you can do here. Apple is a place where extraordinary people gather to do their lives best work. Together we create products and experiences people once couldn’t have imagined, and now, can’t imagine living without. It’s the diversity of those people and their ideas that inspires the innovation that runs through everything we do. Design, develop, debug and support location software with a focus on multi-sensor Global Navigation Satellite System and radio navigation technology to estimate user location on mobile device in order to support both Apple and third party applications. Collaborate to qualify performance and support commercialization on multiple hardware families. Design and implement data structures, threading models, business logic, and system architectures in support of location services to enable location estimation and location features on mobile devices. Optimize performance, robustness and scalability of new and existing services. Develop software tools including automated regression tests and performance reports and systems to support development and testing of new location software. Craft the next generation of location-aware mobile experiences to help users track workouts, navigate to their destination, support third party apps that use location, and enable experiences that take advantage of knowledge of the user's location.

Requirements

Utilizing C++ programming, object-oriented programming in architecting and writing software
Global Navigation Satellite Systems (GNSS), including experience using GNSS measurements to estimate location.
Debugging algorithms; interpreting test results; and improving location accuracy and the user experience.
Positioning Engine, including experience processing raw GNSS measurements to estimate device location.
Using Python for regression, replay and report generation.
Kalman Filters, including understanding algorithm mathematical concepts, implementing programming language, and turning using real-world data.
Statistical data analysis, including experience interpreting test results, and evaluating software and hardware performance expectations.
Inertial navigation systems to estimate device location and orientation.
Software development cycles and writing production-level software.
Developing software for mobile devices.
GNSS integration with a modem and Measurement Engine.

Responsibilities

Design, develop, debug and support location software with a focus on multi-sensor Global Navigation Satellite System and radio navigation technology to estimate user location on mobile device in order to support both Apple and third party applications.
Collaborate to qualify performance and support commercialization on multiple hardware families.
Design and implement data structures, threading models, business logic, and system architectures in support of location services to enable location estimation and location features on mobile devices.
Optimize performance, robustness and scalability of new and existing services.
Develop software tools including automated regression tests and performance reports and systems to support development and testing of new location software.
Craft the next generation of location-aware mobile experiences to help users track workouts, navigate to their destination, support third party apps that use location, and enable experiences that take advantage of knowledge of the user's location.