kashif shabeeb

Senior Lead Engineer

• Job Details:E2E system integration, OS installation on baremetal with kernel tuning and virtualization. Verification and deployment on CNF v-RAN/O-RAN, VNF on host. Deployment, setup configuration and cell bring-up for 5G SA with multiple band and bandwidth configurations with Kubernetes, Anthos, Linux, Red-Hat (RHEL 8.7/8.8), GCP, GKE containerization modes of deployment. Virtualization, KVM and Linux. E2E deployment configuration and testing for E1 split (CU-CP, CU-UP), MOCN, multi bearer, split-6 option (L2), PAL (Physical Abstraction Layer), NFAPI setup with Airspan radio and CPE device. Tested features like carrier aggregation 2CC, resiliency testing, PTP monitoring, multi F1 instances, MOCN, multi cardinality with CUCP 2 CUUP and 12 DU up to 6, 12 and 24 cells. E2E and RAN testing for 5G SA, functional testing, performance testing, OAM testing, stability testing, regression testing, throughput testing, log analysis and validation for latest builds for CU DU CN in lab and field environments with UE simulators and commercial UE. Analyzing memory leaks, app crash, through GDB-args and thread utilization (segmentation fault) and working with dev team for further fixes. Running UESIM simulator (by Radisys) with various APIs to execute various test scenarios as well as Simnovus for FAPI testing. Device testing, log analysis, network testing, benchmarking, KPI analysis and reporting on different tools like QXDM, QPST, Pixel Logger, Wireshark, TEMS Investigation, MobaXterm, Simnovus, XCAL, R&S Scanner. Developed LTE/5G NSA and SA test setups, focusing on layer 2/3 debugging. Conducted advanced feature validation, including carrier aggregation, multi cardinality, IPv4/IPv6, TCP/UDP and multi-F1 instances.

Senior SIT and Verification RAN Test Engineer

• Job Details:Developed LTE/5G NSA and SA test setups, focusing on layer 2/3 debugging. Led feature testing for carrier aggregation and 5G attach call flows. Verified E1 split, multi-operator core network (MOCN), and layer 2 option split-6 for 5G RAN. Performed regression and performance testing in 5G SA environments. RAN system integration and verification testing for 5G SA/NSA architecture.

Senior Test Engineer

• Job Details:Device modem/mobile testing, log analysis, network testing, benchmarking, KPI analysis and reporting on different tools like QXDM, QPST, Wireshark, TEMS Investigation, XCAL, R&S Scanner, Tableau. Executed packet core testing i.e., EPC (SGW and PGW testing) for Google networks. UE testing with flashing, performance and capturing bug logs for prototypes on live networks for sanity, TCP/UDP data, eSIM, DSDS, HO, VoWiFi-calling. Diagnosed system-level issues using QXDM and Wireshark.