Customer Experience Modeler

## Join our Team About this opportunity: We are currently seeking a talented and dedicated individual to join our Ericsson team as a Technical Authority Expert-RAN. This critical role belongs to our Managed Services department, directly contributing to our ongoing Ericsson Operations Engine projects. You will be at the forefront of tech-driven change, offering your specialist knowledge to guide the entire lifecycle of our projects. Whether we are in the Create, Sustain, or Evolve stages, your expertise will pave the way forward in your domain. What you will do: RAN Responsibilities: 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. Core Network Responsibilities: 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. Required Skills & Qualifications: Bachelor's degree in Electronics/Telecommunications/Computer Science or related field. Strong understanding of RAN and Core (EPC, 5GC, NG-RAN, etc.). 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. Work Environment: Work from office (as per project requirements) Should be able to work in night Shift, On-call support rotation (as per project requirements)