Senior Software Engineer - Core Networking

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


Posted: Dec 19, 2018
Weekly Hours: 40
Role Number: 113608287
Imagine what you could do here. At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish. Apple is looking for a talented and energetic software engineer for the Core Networking team to participate in the architecture and development of the next generation of networking technology. The team is responsible for designing and enhancing the operating system networking components across Apple's range of products including all OS X, iOS, watchOS and tvOS based products. Specific areas of responsibility include networking API, protocols and networking interfaces. The ideal candidate should possess an excellent conceptual understanding and working knowledge of TCP/IP and related networking technologies. System level software design experience is also essential. The position will require the right candidate to determine the appropriate compromise between several competing factors such as; performance, efficiency, ease of use and security. We are seeking someone who is comfortable working in an exciting environment with rapidly changing priorities, and someone creative and inspired to invent new ways to analyze and build better products.

Key Qualifications

  • Experience developing commercial networking software and/or hardware products
  • Strong software design and development skills including; C, C++ programming language experience
  • Thorough knowledge of the TCP/IP suite of protocols (including IPv6)and APIs
  • 4-5 years of hands on experience working on BSD/Linux Kernel networking stack
  • Unix networking, including sockets API
  • Network troubleshooting skills
  • Excellent communication and interpersonal skills
  • Enthusiasm and interest in keeping up with trends/research in networking transports / protocols (e.g. HTTP2, QUIC, etc.)


You will be able to work in a fast paced environment, operate gracefully under stress, handle multiple assignments in parallel, and be self driven to be effective in an environment with little overhead. The candidate also needs to show initiative, be able to take ownership of a problem area, and demonstrate an ability to understand the role of the group's technology in the larger context of the product and network environment. The position has cross-functional aspects and the candidate will need to show excellent interpersonal and communication skills.

Education & Experience

BS in Computer Science or equivalent experience

Additional Requirements

  • Preferred Experience:
  • Mac OS and iOS development experience
  • API development experience
  • Wireless networking technologies and standards (Wi-Fi and cellular)
  • Network debugging tools (e.g. packet sniffers, protocol analyzers)
  • Good understanding of HTTP and web networking technologies, mobile networking, and IPv6
  • NAT/Firewall