Senior IMS Core Engineer

We are looking for a determined and team-oriented person to join our team as a Senior IMS Core Engineer

Overall Purpose:

We are looking for an experienced Senior IMS Core Engineer to support the delivery, migration, and operational assurance of large-scale IMS Core and VoLTE environments.

The role requires strong hands-on technical expertise, combined with the ability to lead complex network activities, troubleshoot critical service issues, and coordinate across engineering, operations, customer, and vendor teams.

Key Accountabilities:

• Lead and support IMS Core and VoLTE migrations, deployments, upgrades, and network changes
• Provide technical leadership across IMS, SBC, HSS/HLR and related Core Network functions
• Support VoLTE and VoLTE roaming implementation and service assurance
• Perform advanced troubleshooting and root cause analysis using SIP, SDP, RTP and Diameter signaling
• Lead resolution of critical incidents and technical escalations
• Ensure service continuity, high availability, and operational readiness during network changes
• Support feature verification, interoperability testing, and pre/post-deployment validation
• Review implementation procedures, rollback plans, and technical documentation
• Coordinate activities across internal teams, customers, and technology vendors
• Identify opportunities for service improvement, process optimization, and automation

Required Experience

• Strong hands-on experience with IMS Core and VoLTE technologies
• Experience with IMS migrations, deployments, upgrades, and production support
• Strong knowledge of SIP, Diameter, SBC, HSS/HLR and IMS call flows
• Proven troubleshooting, incident management, and root cause analysis skills
• Experience working in large-scale, highly available telecom environments
• Experience with major IMS vendors such as Huawei, Nokia, Ericsson, Mavenir, or equivalent

Strong communication, technical leadership, and stakeholder management skills