CS and IMS Core (Voice) -Engineering
Core
Design, integrate, configure, troubleshoot, and lead acceptance testing for 3GPP CS and IMS Core networks (Voice/VoLTE) for telecom customers.
Role type
Senior Solution Integrator (Telecom Core Networks)
Builds
Production-ready CS/IMS Core solutions (MSC, MGW, CSCF, etc.)
Domain
Telecom / Mobile Core Networks
Deliverable
client delivery
Required skills
3GPP CS/IMS Core nodes, SIP, H.248, SS7, ISUP, BICC, SIGTRAN, INAP, CAP, TCAP, MAP, SCCP, Diameter, GSM/IN call flows, Prepaid charging (CAMEL), Linux, Virtualization (VMWare/OpenStack/OpenShift/KVM), Test Instructions execution, MOPS/LLD documentation, Acceptance Testing leadership
Preferred skills
Solution Integrator experience, Hardware expansion, Troubleshooting under pressure
Technologies
MSC, MRS/MGW, MTAS, CSCF, STP, SBC, IMS (P/I/S-CSCF, ATS, MGCF, MRFP, CG, ENUM), VMWare, OpenStack, OpenShift, KVM
Responsibilities
Integrate and configure CS/IMS Core nodes; Troubleshoot network issues; Execute test instructions and lead acceptance testing; Document MOPS and LLDs; Translate technical procedures to customers
Seniority
Senior, hands-on IC