IMS & VoLTE Core Engineer — Nokia, 24/7 Operations

QShield LLC; Doha; On-site; QAR 180,000 - 280,000; Full time

Job summary

QShield LLC is seeking an experienced IMS Operations Engineer to own Nokia IMS and VoLTE deployment, ensuring high availability and performance in live networks. You will manage configuration baselines, perform upgrades and lead maintenance activities in a 24/7 GCC region environment.

Responsibilities include troubleshooting call flows with Wireshark, monitoring KPIs, and collaborating with design teams on feature optimization and automation opportunities. A shift-based schedule is required.

Qualifications

• Proven expertise in Nokia IMS and VoLTE 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 SIP 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.
• Bachelors degree in Telecommunications, Computer or Electronic Engineering (or equivalent).
• Able to work in shifts to support 24/7 operations.

Responsibilities

• Administer, configure and operate Nokia IMS Core (CSCF, SBC, TAS and related applications).
• Perform software upgrades, patch management and capacity expansion for IMS network functions.
• 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.
• Lead preventive and corrective maintenance activities to sustain service quality.
• Identify automation and process-improvement opportunities within IMS operations.
• Support integration testing, acceptance and commissioning of new IMS features and nodes.
• Generate periodic health-check, KPI and fault analysis reports for management.

Skills

Nokia IMS

VoLTE architectures

SIP

Diameter

IP networking

OpenStack

KVM

Linux OS

Wireshark

Kubernetes

KPI management

Incident handling

Documentation

Education

Bachelors degree in Telecommunications, Computer or Electronic Engineering (or equivalent)

Tools

OpenStack

KVM

Linux

Wireshark

Job description

QShield LLC is seeking an experienced IMS Operations Engineer to own Nokia IMS and VoLTE deployment, ensuring high availability and performance in live networks. You will manage configuration baselines, perform upgrades and lead maintenance activities in a 24/7 GCC region environment.

Responsibilities include troubleshooting call flows with Wireshark, monitoring KPIs, and collaborating with design teams on feature optimization and automation opportunities. A shift-based schedule is required.