SDM L2 Engineer

QShield LLC; Doha; On-site; QAR 180,000 - 260,000; Full time

Job summary

QShield LLC in the Middle East GCC region seeks an experienced SDM Operations Engineer to own Nokia SDM Core components (HLR/HSS, AUSF/UDM, SDL, EIR and PGW) across live networks, ensuring high availability and robust performance.

You will monitor KPIs, troubleshoot incidents, coordinate with design and engineering for feature deployment, lead maintenance and upgrades, and document configurations while supporting 24/7 operations.

Qualifications

• Proven expertise in SDM architectures.
• Experience with virtualization platforms (OpenStack/KVM) and Linux OS.
• Hands-on experience troubleshooting call flows and signaling using Wireshark.
• Familiarity with Kubernetes and Linux for operational efficiency.
• Strong commitment to reliability, quality and continuous service improvement.

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.

Skills

SDM architectures

SIP

Diameter

IP networking

Analytical skills

Documentation

Education

Bachelor's degree in Telecommunications, Computer or Electronic Engineering

Tools

OpenStack/KVM

Linux OS

Wireshark

Kubernetes

Job description

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.