Experimentation, Evaluation, and Post-Deployment Monitoring
Progress depends on disciplined hypotheses, not random tinkering. Look for experiment logs, automatic metric capture, and clear promotion criteria. Offline wins must survive online A/B tests under real latency and cost. Post-deployment, dashboards should reveal user-level impact, error surfaces, and alert fatigue. Can non-ML teammates interpret results? When outliers spike, who investigates and how are learnings folded back? Continuous evaluation turns surprises into steady, compounding improvement.