Apple Ads is Hiring a hands-on Machine Learning Engineer. In this role you will build design and build Machine learning systems and data pipelines to safeguard the advertiser trust of our platform and enhance invalid traffic protections. You will define and execute an innovation roadmap; build and deploy models with robust CI/CD, feature stores, and streaming infrastructure (e.g., Kafka/Spark/Flink); and run A/B experimentation. You will lead performance tuning, calibration, and drift detection to deliver measurable improvements in product quality, user experience, latency, and cost.

Develop and manage end-to-end lifecycle of machine learning models, including observability for large-scale, high-throughput, and low-latency production systems.

Design, develop, and optimize distributed algorithms and data processing frameworks(e.g., Spark).

Implement scalable feature pipelines to ingest, clean, transform, and analyze massive datasets.

Reinforce Ads integrity and advertiser trust by safeguarding infrastructure.

Solve complex problems with multilayered data sets, and optimize existing machine learning libraries and frameworks

Stay up to date with developments in the machine learning industry

Collaborate with product and engineering teams on production systems and applications.

Drive performance optimization, bottleneck analysis, and system tuning across compute and storage layers.

Build tools to support A/B testing, statistical evaluation, and experimentation pipelines.

Ensure data integrity, security, and compliance across all solutions.

Participate in cross-functional Agile teams to prototype and deliver impactful, data-driven products.