Jerry first began working with computers in 1969, and has been working with Linux since 1994, developing and delivering training in both the kernel and userspace. He has overall responsibility for all training content at The Linux Foundation. For over two decades as a theoretical nuclear astrophysicist at universities and national laboratories in the U.S. and in Europe, Jerry developed state-of-the-art high-performance simulation software on many kinds of supercomputers and taught at both the undergraduate and graduate level. Jerry joined the Linux Foundation in 2009 as the training program director. He lives in Wisconsin.