Host: Tony Printezis

JVM/GC Engineer @Twitter & Twitter Rep at JCP Executive Committee

Tony Printezis is a Staff Software Engineer at Twitter and a member of the VM Team in the Infrastructure Organization. He has over 20 years of virtual machine implementation experience with special focus on memory management. Most of his projects have involved improving the performance, scalability, responsiveness, parallelism, concurrency, monitoring, and visualization of garbage collectors. He was one of the designers of (and tech lead of) the G1 GC and the original implementer of the CMS GC.

Before Twitter, Tony worked at Adobe, the Java organization at Oracle and Sun Microsystems, and Sun Microsystems Laboratories. He holds a PhD and a BSc(Hons) in Computing Science, both from the University of Glasgow in Scotland.

Find Tony Printezis at

Proposed Tracks

  • Trouble-Shooting in Production

  • Disrupting Technology on Wall Street

  • Resilience vs Failure in Architecture

  • The Weeds of Distributed File Systems

  • Organizational Agility

  • Product & Customer Focused Teams

  • Just Culture (Blameless Culture)

  • Modern CS in the Real World

  • Architectures You’ve Always Wondered About

  • Machine Learning and AI in the New Decade

  • Evolving Java - Including K8s/Containers, Kotlin and Impact on AOT

  • Ethical Considerations in Software

  • Microservices and Scalability

  • Container Slinging

  • Native Compilation Is Back (A Look at Non-Vm Compilation Targets)