Core Network DT Engineer — 5G SA/CS IMS

SISGlobal; Riyadh; On-site; SAR 400,000 - 600,000; Full time

Job summary

SISGlobal seeks a BO Core CS/IMS DT Engineer to lead Ericsson core network design translation, scripting, and signaling integration on-site in Riyadh, Saudi Arabia. You will own configurations across CS Core, IMS, and 5G core SA nodes, ensuring end-to-end signaling and design integrity.

Required are Ericsson CS Core/IMS experience, DT and scripting skills, and strong knowledge of Diameter/SIP/SS7. This on-site role offers competitive compensation and global exposure.

Qualifications

• Bachelor’s degree in a telecom or related technical field.
• Prior professional experience with Ericsson CS Core and IMS networks.
• Strong DT and scripting for core network configurations.
• Knowledge of signaling protocols: SIGTRAN, Diameter, SIP, SS7, M2PA, M3UA.
• Experience with MSS Blade Cluster, MGW, HLR/HSS, STP, DSC, and 5G Core SA.
• Familiarity with MNP, CSFB, IN Triggering Tables, and E2E signaling routing.
• On-site Riyadh work eligibility and legal work authorization.

Responsibilities

• Manage CS Core, IMS, and 5G Core SA node integration and configuration.
• Prepare and review core network scripts and DTs.
• Implement network designs and manage signaling routing (Diameter, SIP, SS7).
• Configure HLR, HSS, MSS, MGW, STP, DSC, UDC, and IMS elements.
• Analyze routing tables: B-Number, A-Number, IMSI, Global Title.
• Perform configuration audits and ensure design compliance.
• Monitor KPIs and capacity; propose improvements.
• Coordinate with cross-functional teams for service delivery.

Skills

Ericsson CS Core

IMS networks

Core Network DT

Configuration scripting

SIGTRAN

Diameter

SIP

SS7

MNP & CSFB

Troubleshooting & auditing

Education

Bachelor’s degree in Telecommunications/Electrical/CS

Tools

MSS Blade Cluster

MGW

HLR/HSS

STP

DSC

UDC

5G Core SA

Job description

SISGlobal seeks a BO Core CS/IMS DT Engineer to lead Ericsson core network design translation, scripting, and signaling integration on-site in Riyadh, Saudi Arabia. You will own configurations across CS Core, IMS, and 5G core SA nodes, ensuring end-to-end signaling and design integrity.

Required are Ericsson CS Core/IMS experience, DT and scripting skills, and strong knowledge of Diameter/SIP/SS7. This on-site role offers competitive compensation and global exposure.