Job Description

Career Level: Mid Career Level
Division: NOMC

Job Overview

Step into the nerve center of next-generation telecom. This role is responsible for managing and evolving the IMS Core network, ensuring highly resilient, scalable, and cloud-native services including VoLTE, VoWiFi, and SIP-based communications. The ideal candidate blends architectural expertise with operational precision to keep services running like clockwork.

Key Responsibilities

Lead end-to-end IMS Core architecture including CSCF (P/I/S-CSCF), HSS/UDM, SBC, TAS/AS, MRF, BGCF/MGCF with high availability and SLA compliance
Manage and optimize VoLTE, VoWiFi, SIP Trunking, and ensure smooth interworking with EPC, 5GC, PCRF, OCS, SMSC, and roaming partners
Drive automation across IMS operations including configuration management, KPI monitoring, health checks, and incident correlation
Perform advanced troubleshooting using SIP/Diameter analysis, ladder diagrams, and RTP/media flow validation
Ensure seamless execution of SRVCC, emergency call routing, roaming interconnects, and inter-RAT handovers
Execute IMS expansion projects, software upgrades, and patch management in virtualized/cloud-native environments
Maintain 100% availability of IMS Core nodes and services through proactive monitoring and preventive actions
Conduct system health checks and performance tuning to ensure optimal service delivery
Lead incident management bridges and coordinate with cross-functional teams (Core, Transmission, IT, Commercial)
Provide mentorship to engineers and contribute to technical capability building

Eligibility Criteria

Education

Bachelor’s degree in Telecommunications, Electrical, Computer Engineering, or a related field

Experience

6–10 years of telecom experience, including at least 4+ years in IMS Core
Hands-on experience with virtualized/NFV or cloud-native IMS environments
Experience with major vendors such as Huawei and ZTE

Core Competencies

Technical Skills

Strong command of IMS architecture and standards
Deep understanding of SIP, SDP, Diameter, RTP/RTCP, DNS, ENUM
Expertise in signaling, routing, and IMS Core platform operations
Practical knowledge of hardware and software across IMS network layers

Behavioral Skills

Strong communication and interpersonal abilities
Proactive, self-driven mindset
Ability to manage high-pressure situations and meet deadlines
Strong documentation and presentation skills
Strategic thinker with a transformation-oriented approach

Why Join?

Be part of a team shaping the backbone of modern communication. If IMS networks were a symphony, this role is the conductor ensuring every packet, signal, and call flows in perfect harmony 🎼📶