Yuri Shkuro is a  software engineer at Uber Technologies, working on distributed tracing,  observability, reliability, and performance problems; author of the book  "Mastering Distributed Tracing"; creator of Jaeger, Uber's open  source distributed tracing system (a CNCF project); co-founder of the  OpenTracing and OpenTelemetry projects (also in CNCF); invited expert in W3C  Distributed Tracing Working Group.