Technical Authority Expert(5)

## Join our Team About this opportunity: We are seeking a highly motivated and skilled RAN & Core Performance Engineer to join our telecom network team. The candidate will be responsible for Performance KPI’s, assurance, troubleshooting, and optimization of both Radio Access Networks and Core Network (CS/PS/VAS) components. This role requires in-depth technical knowledge of mobile technologies (2G/3G/4G/5G/ NBIoT), Core, network architecture, and protocols, etc. What you will do: • Network performance management of 2G/3G/4G/5G/ NBIoT RAN. • Perform KPI monitoring, root cause analysis, and performance tuning of radio networks. • Collaborate with RF engineers for coverage and capacity planning. • Troubleshoot site-level and cluster-level RAN issues (call drops, interference, handover failures). • Support in Pre-post analysis for any new site integration, software upgrades, and feature implementation. • Network performance management of Core domain (CS/PS/VAS), EPC/5GC components: MME, SGW, PGW, AMF, SMF, etc. • KPI analysis and troubleshooting. • Troubleshoot signalling and bearer path issues using protocols like GTP, Diameter, SCTP, SIP. • Analyze call flows, CDRs, and trace logs for issue resolution. • Support in Pre-post analysis for any new site integration, software upgrades, and feature implementation. • Work with vendors for core software upgrades and capacity expansion. The skills you bring: • Bachelor's degree in Electronics/Telecommunications/Computer Science or related field. • Strong understanding of RAN and Core (EPC, 5GC, NG-RAN, etc.). • Need 9 to 12 years of experience. • Experience with tools like Wireshark, TEMS, NetAct, ENM, OSS platforms, Kalix, Netcool, NGPM, Service now, SIGOS, EEA. • Knowledge of telecom protocols: LTE/NR, GTP, S1AP, X2AP, Diameter, NAS, NGAP. • Familiarity with network virtualization (NFV), SDN, and cloud-native core (preferred). • Good analytical, problem-solving, and communication skills. • Should be able to work in night Shift, On-call support rotation (as per project requirements)