Dr. Kazuaki Ishizaki is a senior technical staff member at IBM Research – Tokyo. He has over 30 years of experience of conducting research and development of compilers for Java and other languages. He is an expert in compiler optimizations, runtime systems, and parallel processing. He has been working for IBM Java just-in-time compiler and virtual machine from JDK 1.0. He is an Apache Spark and Arrow committer. He gave multiple presentations at OSS conferences, for example, six years in a row at Data+AI Summit. He is also a contributor of PyTorch. He is an ACM distinguished member.