AI Security Data Scientist — Production ML, Visa Support

Refractal, an AI security company, is seeking an experienced ML/Data Scientist to own machine-learning models behind detections in production. You will train, tune and ship classifiers addressing prompt injection, data exfiltration, and policy violations, while designing low-latency models and evaluating performance across customers.

You will analyze production telemetry for drift and false positives, build benchmarks, and collaborate with security engineers to convert new attacks into training

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