Sr Software Engineer- Time Synchronization
Apple
Software Engineering
Boulder, CO, USA
USD 132,100-244,600 / year + Equity
Posted on Jan 13, 2026
Imagine what you could do at Apple! Everyday new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Do you bring passion and dedication to your job? If so, we are looking for individuals like you. The Audio and Media Technologies Group (AMT) is at the center of audio, video and graphics support in Apple’s innovative products, including the AirPods, HomePod, Mac, iPhone, iPad, Apple Watch, Apple TV. The team is seeking an expert software engineer responsible for the development of time synchronization related drivers, frameworks and applications for the Mac, iOS, tvOS and visionOS hardware platforms. You will work hand-in-hand with the Audio Design & Engineering Team, innovating in small groups with high initiative. We're looking for a strong background in driver development, network protocols, and low level debugging.
We are looking for a senior engineer with strong programming skills to work on upcoming Apple products. In this role, you will be responsible for the design and development of drivers, APIs and network protocols for new hardware and software releases at Apple. This role is perfect for someone who enjoys engaging at all layers of the software stack, from low level kernel drivers written in C++, to higher level APIs and frameworks written in Objective C or Swift. It is an opportunity to make significant contributions to the core technologies that underpin many audio/video features at Apple such as AirPlay, Continuity Camera, and future projects. Some of the day to day responsibilities include: - Design, develop and debug network drivers, protocols and APIs for distributed systems - Analyze and improve performance of clock synchronization across Apple devices - Participate in monitoring industry standards bodies and new specification development - Participate in medium and large scale software engineering processes - Create and maintain engineering documents
- 5 + years of experience in software development, debugging and testing
- Experience with kernel level programming, device drivers and/or real-time systems software
- Experience with designing, implementing and analyzing performance of network protocols
- Excellent programming skills with knowledge of C, C++, and Objective-C or Swift
- Excellent written and verbal communication skills
- BS in Computer Science or Engineering (or equivalent experience)
- Experience with wireless MAC layers, IEEE 802.11 standards and network performance
- Experience with IOKit, DriverKit or userspace driver development is a plus
- Experience in the audio or networking industries developing drivers or systems is a plus
- Understanding of UDP, IPv6, ARP/NDP, Bonjour, and IEEE 1588 / Precision Time Protocol is a plus
Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.