Holly Cummins

Holly Cummins is an IBMer and leads the developer discipline in the IBM Garage. As part of the Garage, Holly uses technology to enable innovation for clients across a range of industries, from banking to catering to retail to NGOs. She has led projects to count fish, help a blind athlete run ultra-marathons in the desert solo, improve health care for the elderly, and change how city parking works.

Holly is also an Oracle Java Champion, IBM Q Ambassador, and JavaOne Rock Star. Before joining the IBM Garage, she was Delivery Lead for the WebSphere Liberty Profile (now Open Liberty). Holly co-authored Manning's Enterprise OSGi in Action and is a regular keynote speaker. She is an active speaker and has spoken at KubeCon (keynote), GOTO, JavaOne, Devoxx, Sonar+D, JavaZone, JFokus, The ServerSide Java Symposium, GOTO, JAX London, QCon, GeeCon, and the Great Indian Developer Summit, as well as a number of user groups. Before joining IBM, Holly completed a DPhil in Quantum Computation.


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Exploration of the pitfalls of optimisation, why the same technology that makes Quarkus fast used to be an awful idea, why fast benchmarks make slow programs, and why optimisation really matters. Along the way we'll talk measuring things, bad advice, garbage collection, and climate change. More...

The Present and Future of Java (17)

Discussing new language features, API additions, JVM improvements, LTS and license changes as well as answering your questions More...