The people here at Apple don't just craft products - they build the kind of wonder that's revolutionized entire industries! It's the diversity of those people and their ideas that encourages the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts. Join Apple, and help us leave the world better than we found it! The Postgres team at Apple invites interested engineers to join our team to develop and contribute to PostgreSQL, the world's most popular open source relational database. Our engineers develop and operate Apple's cloud-based relational databases service hosting PostgreSQL databases that power some of Apple's most important workloads in Services, Manufacturing, AIML, and many more. You will be joining a team of experts working on modern database technologies, distributed systems, and storage engineering, helping push the limits of open-source PostgreSQL in order to offer enterprise-class performance, availability, and durability to our customers, as well as to ensure reliable administration. Your work will be deployed at massive scale, serving millions of queries per second over many petabytes of data across our data centers worldwide and impact the experiences of many millions of users of key Apple services. The Apple Postgres team develops and operates a highly reliable, cloud relational databases service that serves all of Apple. We're looking for curious, enthusiastic, and collaborative developers with an extraordinary degree of care and rigor in engineering who can contribute to all major components of PostgreSQL, including: - Query execution - Storage - Replication - High-availability - Scaling - Administration - New feature development - All other aspects of the database. Success in this role requires a high level of expertise in several of the following: - Fundamentals of system-level hardware and networking components (storage devices and controllers, network interfaces) in server class systems. - Operating systems concepts (process scheduling, disk and network I/O, performance). - Understanding of database concepts (relational algebra, query optimization, consistency models, isolation levels, crash and recovery semantics). - Advanced concepts such as failure detection, load balancing, request pipelining, and operational semantics of high-throughput systems. - Performance engineering, understanding of advanced testing methodologies, familiarity with debugging and profiling tools. The role also requires excellent communication and the ability to partner closely with our Database Engineering and SRE teams, and a high degree of customer focus when engaging with internal customers. The ability to work effectively with colleagues based in other locations is also essential, as well as the ability to help mentor junior engineers.