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 🎼📶