JianJiong (JJ) Gao was trained in computer science and bioinformatics. His passion lies at the intersection of computational oncology and software engineering. JJ has been co-leading the development of several large-scale cancer genomics software projects including cBioPortal (a web resource of the analysis of complex cancer genomics data), OncoKB (a precision oncology knowledge base), and Genome Nexus (a web resource for comprehensive annotation of cancer variants). He has also contributed to a number of collaborative cancer genomics projects which include TCGA, AACR Project GENIE, and MSK-IMPACT. By building computational and translational data infrastructure, his goal is to provide researchers and clinicians with the capacity of analyzing and interpreting complex genotypic and phenotypic data from cancer patients.