Senior Mobile Core Network Engineer — 5G/EPC

SIS Global; Saudi Arabia; On-site; SAR 180,000 - 240,000; Full time

Job summary

SIS Global is seeking a Senior Core Network Engineer to support the operation, maintenance, and evolution of mobile core network platforms in a carrier-grade environment in Saudi Arabia.

You will lead fault analysis, software upgrades, and performance optimization across CS Core, EPC, and 5G Core networks, collaborating with engineering and operations teams to ensure high availability and rapid incident resolution.

Qualifications

• Bachelor’s degree in Telecommunications Engineering, Electronics Engineering, Computer Engineering, Information Technology or related field.

Responsibilities

• Operate, maintain, and optimize mobile core network platforms across CS Core, EPC, and 5G Core environments.
• Monitor network health, alarms, traffic statistics, and service performance indicators.
• Perform end-to-end service tracing and advanced troubleshooting across voice and data services.
• Conduct fault isolation, root cause analysis, and service restoration activities.
• Support network configuration management and operational change implementation.
• Perform software upgrades, patch management, and platform lifecycle activities.
• Analyze network performance trends and implement optimization initiatives.
• Conduct capacity planning and resource utilization assessments.
• Support security audits, configuration audits, and compliance activities.
• Collaborate with engineering teams during new node integrations, expansions, and modernization projects.
• Prepare technical reports, operational documentation, and incident analysis reports.
• Support technical escalations and serve as a senior SME for core network operations.

Skills

Mobile Core Network Operations

End-to-end tracing

Root cause analysis

Network optimization

Strong analytical skills

Education

Bachelor’s Degree in Telecommunications or related field

Tools

Kubernetes

OpenStack

VMware

Job description

SIS Global is seeking a Senior Core Network Engineer to support the operation, maintenance, and evolution of mobile core network platforms in a carrier-grade environment in Saudi Arabia.

You will lead fault analysis, software upgrades, and performance optimization across CS Core, EPC, and 5G Core networks, collaborating with engineering and operations teams to ensure high availability and rapid incident resolution.