Layer1 - Layer2 interfaces, Layer2 - Layer3 interfaces, Java, Tcp, UDP, C, Gerrit, Sctp, Git, Docker, Kubernetes, Python, Agile Development Methodologies, Jira, Ip, Bazel, virtualized Distributed Units, 3GPP Layer1, VsCode, RAN technologies, connectivity protocols, CloudRAN implementations, debugging complex gNodeB issues, LTE 5G NR Mac Scheduler, log file analysis, 3GPP Specification