Function: Core Network & SDM Operations
Location: Middle East (GCC Region)
About the Role
Position: SDM (Subscriber Data Management) L2 Engineer
Function: Core Network & SDM Operations
Location: Middle East (GCC Region)
About the Role
We are seeking an experienced SDM Operations Engineer to join our client’s Core Network & SDM Operations team.
The role carries full technical ownership of Nokia SDM solutions, ensuring high service availability, performance and reliability across live network environments.
Key Responsibilities
- Administer, configure and operate Nokia SDM Core (HLR/HSS, AUSF/UDM, SDL, EIR and PGW).
- Monitor KPIs, alarms and system logs to ensure service continuity and stability.
- Conduct troubleshooting and detailed root cause analysis for incidents, faults and performance degradations.
- Prepare and maintain configuration baselines, change activities and operational documentation.
- Collaborate with design and engineering teams on feature implementation and optimization.
- Participate in network change activities, ensuring risk-free execution in live networks.
- Coordinate with vendors and third parties on escalations and technical resolutions.
- Perform software upgrades, patch management and capacity expansion for SDM network functions.
- Lead preventive and corrective maintenance activities to sustain service quality.
- Support integration testing, acceptance and commissioning of new SDM features and nodes.
- Generate periodic health-check, KPI and fault analysis reports for management.
Requirements
- Proven expertise in SDM architectures.
- Deep understanding of SIP, Diameter and IP networking protocols.
- Experience with virtualization platforms (OpenStack/KVM) and Linux OS.
- Hands-on experience troubleshooting call flows and signaling using tools such as Wireshark.
- Familiarity with Kubernetes and Linux for operational efficiency.
- Solid understanding of performance monitoring, KPI management and incident handling.
- Excellent documentation and analytical skills.
- Bachelor’s degree in Telecommunications, Computer or Electronic Engineering (or equivalent).
- Strong commitment to reliability, quality and continuous service improvement.
- Able to work in shifts to support 24/7 operations.
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