Requirements

Experience with standard software engineering tooling and workflows, including version control and code review
Strong proficiency in at least one programming language (e.g., Java, Python, Swift, C/C++)
A willingness to jump in and tackle new problems
Quality focus - produce reliable, maintainable, deliverable software
Comfortable diving deep - working across multiple levels of abstraction
Good at managing relationships & communication - collaborates well with colleagues across a wide range of functions

Nice to Haves

Expertise in library design/API evolution
Asynchronous/streaming programming experience (e.g. Reactive Streams, Dispatch, Combine, or similar)
Experience with implementing, debugging, and scaling network protocols
Experience with modern high-performance Linux networking technologies, including some or all of eBPF (with or without XDP), DPDK, and io_uring
Familiar with QUIC and some of its extensions
Familiar with modern cryptography, including understanding major categories of cryptographic primitives and their safe use

Building and improving libraries and SDKs for running large-scale, mission-critical services in Swift
Influencing the direction of the platform and collaborating with multi-functional teams across Apple
Defining, implementing, and delivering functionality for the next generation of Apple Services
Working across multiple domains including cloud services and iOS/macOS SDK development
Contributing to Swift-based frameworks for distributed systems, some of which are open source
Collaborating within a team of domain experts with broad experience in cloud software services and platforms