5G RAN Developer

Role SummaryDesign and develop 5G RAN gNodeBs and new products including cloud-based or internet-related tools. Key ResponsibilitiesResponsibilities for the position include but are not limited to:Good understanding of 3GPP standards related to 5G RANDevelop design documents for 5G SA features. Analyze product logs, UE logs and network interconnect traces to identify any issuesAbility to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problemDebugging field data and identifying potential problems and re-creating the same in the lab Job RequirementsGood understanding of the functionality of CU-CP, especially of the N2, E1 and F1 interface. Good understanding of the 5G NR RRC protocol Good understanding of the functionality of CU-UP and the N3, E1 and F1-U interface. Good understanding of the 5G NR PDCP and SDAP protocolsKnowledge of Go languageGood understanding of the 5G NR L2 scheduler. Good understanding of the L2-L1 interface.Experience in debugging scheduling and throughput issues. · Good understanding of the 5G NR EGTP, NRUP and RLC protocols· Knowledge of the OAM layers in the CU/DU· A good understanding of the DU-RU interface· Good understanding of the 5G NR · Good system-level knowledge of 5G NR in the DU or CU or both Good understanding of software engineering aspects - data structures, IPCs, system services (memory management, event handing), computer architecture fundamentals (caching, memory hierarchy)Exposure in running/porting legacy implementation to virtualized environment is a plus.Exposure to Netconf/Yang is a plus.Familiar with debugging tools (gdb), code management tools (CVS/GIT).Experience in analyzing packet captures in Wireshark and debugging throughput issues.Hands on experience in working in a Kubernetes environment.Hands on experience in analyzing UE logs PRB