CS Core / IMS / SVC Engineer
Job Summary We are seeking a CS Core / IMS / SVC Engineer to support, operate, and evolve mobile core networks. The role covers CS, IMS, and SVC solutions, with responsibilities and technical depth aligned to the candidates experience level. Engineers will work in live network environments, ensuring service availability, performance, and continuous improvement.
Experience Levels2–5 Years
Responsibilities & Technical Requirements Core Network Knowledge Understand the basic structure of mobile communication networks Knowledge of CS / SVC solutions or IMS / SBC services with basic configuration capabilities Signaling & Protocols Basic knowledge of SS7, M3UA, signaling link configuration, and GT routing Familiarity with ISUP, BICC, SIPUnderstanding of mobility control protocols:BSSAP, RANAP, MAP, CAPGeneral knowledge of SIP, SDP, DIAMETER, DNS, ENUMMobility & Subscriber Concepts Understanding of authentication and encryption mechanisms Knowledge of LAI, LAC, cell, service area, paging, roaming, handover, STN-SRAbility to check subscriber profiles in HSS and understand basic subscriber parameters Operations & Support Perform L1 health checks and maintain operational scripts Monitor network performance, system logs, and capacity Enable traces and support basic call troubleshooting Provide first-line technical support for CS/IMS core network elements