Layer2 - Layer3 interfaces, Layer1 - Layer2 interfaces, Tcp, C, Agile Development Methodologies, Gerrit, Docker, Python, Java, UDP, Sctp, Git, Kubernetes, CloudRAN implementations, log file analysis, virtualized Distributed Units, debugging complex gNodeB issues, 3GPP Layer 2, VsCode, Ip, LTE 5G NR Mac Scheduler, 3GPP Specification, project management tools like Jira, Bazel