Sr. Applied Scientist, Alexa Excellence AI Ops, Alexa Excellence AI Ops
Core
Leading research and development of machine learning and statistical models to ensure Alexa's reliability at massive scale for hundreds of millions of global customers.
Role type
Senior Applied Scientist (AI Ops/Availability)
Builds
Production-grade ML solutions for anomaly detection, predictive failure modeling, and LLM-driven operational intelligence.
Domain
Consumer AI / Large-scale Distributed Systems / Operational Intelligence
Deliverable
production ML models
Required skills
Time series multivariate modeling, statistical anomaly detection, LLM-based operational intelligence, adaptive threshold systems, RAG, confidence scoring, knowledge graph integration, counterfactual testing, neural deep learning methods, Java, C++, Python
Preferred skills
R, scikit-learn, Spark MLLib, MxNet, Tensorflow, numpy, scipy, Hadoop, large scale distributed systems
Responsibilities
Design and implement production-grade ML solutions, establish rigorous model evaluation frameworks, partner with engineers and product managers to translate science into production systems, drive the scientific agenda, mentor fellow scientists
Seniority
Senior, hands-on IC with mentorship