The AIML Performance & Reliability team is looking for a Senior Machine Learning engineer with proven record of building scalable statistical systems for business applications in a fast-paced environment to be the lead developer and architect on the Tools team. As a Senior ML engineer on the AIML Performance & Reliability Tools team, you will have significant influence and responsibility in improving Siri performance and user experience by building a trustworthy and explainable anomaly detection system to automatically identify regressions in Siri performance and alert engineering teams with actionable insights for debugging performance issues. You will be responsible for creating the technical vision for a trustworthy anomaly detection platform by understanding the user requirements, shortcomings of existing approaches, and identifying rigorous statistical methodology scalable for automation. If you're interested, you are someone laser focused on iteratively delivering impact to customers with excellent statistical modeling, programming, problem solving and communication skills, and a passion to build data tools for cross functional customers. By building a trustworthy anomaly regression detection platform, your work will directly impact shipping high performant Siri across various platforms including iOS, VisionPro, WatchOS etc. As a Senior ML engineer on the AIML Performance & Reliability Tools team you will have the opportunity to make broad impact across all Apple platforms in close partnership with Engineering feature and product teams, Testing teams and Quality teams. Your work directly improves Siri’s user experience in the hands of billions of Apple consumers.