iOS System Software Engineer

Santa Clara Valley (Cupertino), California, United States
Software and Services


Posted: Oct 9, 2018
Weekly Hours: 40
Role Number: 114008014
Here at Sensing and Connectivity we work on a very diverse set of technologies, and because these technologies are so fundamental and critical to Apple, we impact all of Apple’s products. We work on every OS platform (iPhone/iPad, watchOS, macOS, and tvOS), and even accessory products like AirPods. We: - Provide the most accurate location, balancing power and availability - Learn your location trends to suggest destination in Maps, remember where you parked, or trigger DND While Driving - Provide motion capabilities for raise-to-wake, portrait/landscape, or driving a race car game by tilting - Track your calories, exercise minutes, active calories, and other health/fitness metrics - Peer-to-peer networking for Continuity, unlocking Mac with Watch, and phone call relays - AirPod magic for pairing, battery status, automatic pause when taken out of ear, and seamless switching between phone and Watch - Networking throughputs for downloads, AirPlay streaming, and AirDrop sharing - MFi hearing aids for the best hearing aid experience on a smartphone - Wheelchair mode for Apple so more users can enjoy our all-day fitness and health features …and more. We are extremely proud of our work on accessibility. We believe in building products that empower all of our customers, and truly making a difference.

Key Qualifications

  • You've developed kernel codes from scratch for large operating systems
  • In-depth knowledge of C and C++
  • You have a deep interest in system programming concepts such as memory management and process management
  • Looking at bugs under pressure excites you
  • You know what buses such as UART/USB/SPI/PCIe are
  • Ability to work under tight schedule and deliver on time
  • - Excellent analytical, programming and debugging skills
  • - Thrive in a collaborative environment and can clearly communicate while confidently driving multiple projects across many teams
  • - Obsessively passionate and inquisitive, and seek to solve everyday problems in innovative ways
  • - Laser-focused on the smallest details that are meaningful to our customers
  • - Strong communication and collaboration skills


Our team is responsible for many aspects of our wireless products including the iOS kernel driver development for WiFi. As part of the team, you will learn deep internals of operating system design and C++ library design as well as come across rare and difficult to root cause problems. As part of our team, you will contribute to the following: - Architecting and defining next generation of WiFi solutions - Designing and developing drivers for all WiFi solutions - Designing daemons and new system software for data movement and inter-chip communication schemes - Optimizing end-to-end data path to: - Maximize throughput - Minimize CPU utilization - Minimize power utilization - Minimize packet latency - Designing the system software for boot and managing the lifecycle of the chip - Bringing up new connectivity chips across all products - Triaging and consolidation of day to day Kernel Panics, stability and power challenges - Debugging hard to reproduce issues - Owning the development and debugging cycle of operating system stability issues along with driving the maintenance of existing code base - Working closely with cross-functional hardware teams, various operating system teams for bring-up of new chipsets

Education & Experience

Bachelor's degree in Computer Science or equivalent with operating system focus desired.

Additional Requirements