You’ll be a core contributor to our A/B testing systems, and you will work with engineers, statisticians, data scientists, product managers and mapping experts to improve a core product that touches millions of users worldwide each day. Working as part of a multi-functional team, you will work on novel problems and solve challenges around experimentation and distributed systems while keeping user privacy as a top priority. - Have expertise in object-oriented software development, engineering standard processes and design patterns- Operate critical production services with high uptime and performance, employing the right level of monitoring and alerting to flag potential issues and applying automation for deployment and validation to ensure safe changes in production- Demonstrate ability to investigate, analyze and fix issues with critical systems. Strong debugging skills and understanding of distributed systems, backend services and relational databases is essential- Translate data science requirements around statistics and analysis into working experimentation software that improves Apples ability to make data-driven decision.