Remote Senior ML Engineer, Email Threat Detection

Abnormal AI is seeking a Machine Learning Engineer for the Message Detection - Attack Detection team. You will design and deploy systems that fuse rules, models, feature engineering, and business inputs to detect email threats at scale.

You will build high-recall detectors, train on labeled data, monitor FN/FP, and collaborate with infrastructure to productionize signals for our customers. This is a remote USA role with competitive compensation and equity opportunities.