IMS Engineer – C Spire

We are seeking an experienced IMS Engineer to support, maintain, troubleshoot, and optimize carrier-grade IMS/VoLTE networks. **Key Requirements:**

• Strong hands-on experience with **IMS Core, VoLTE, VoIP, and LTE EPC**.
• Knowledge of IMS components: **P-CSCF, I-CSCF, S-CSCF, TAS, IBCF, SBC**.
• Experience with **Nokia IMS platforms** and SBC solutions (Metaswitch, Genband, or Mavenir).
• Strong understanding of **SIP, SDP, RTP, Diameter, SS7**, and call flows.
• Hands-on production troubleshooting, **Wireshark/PCAP analysis, and root cause analysis**.
• Experience with network upgrades, deployments, integration, testing, and Tier 2 support.
• Familiarity with **NFV, VMware, Kubernetes, cloud-native platforms, and Python** is preferred.
• Ability to support maintenance windows and after-hours production issues.

**Preferred:** Experience in carrier-grade telecom environments with IMS performance monitoring, capacity planning, and network optimization.