John P User

I am a Senior Data Engineer and MLOps specialist with hands-on experience designing end-to-end machine learning platforms, production model deployment, and scalable data infrastructure. I focus on reducing time-to-production and operational risk through automation, CI/CD, and robust monitoring.

My background includes building feature stores and real-time inference services that support millions of daily transactions and half a million IoT device predictions, achieving high availability and measurable cost savings. I have led implementation of infrastructure-as-code, containerized deployments, and event-driven retraining systems that improve model lifecycle management and reduce manual intervention.

I prioritize reliability, observability, and continuous improvement; I deliver production-ready ML systems that detect drift early, prevent operational losses, and enable repeatable, auditable model workflows across cloud environments.