BO Core CS DT Engineer | Tangent International | Riyadh, Saudi Arabia

Tech Junction Ltd; Riyadh; On-site; SAR 223,000 - 558,000; Full time

Job summary

Tangent International is urgently seeking an experienced BO Core CS DT Engineer to support live CS Core network operations in Riyadh, Saudi Arabia. The role focuses on integrating, configuring, validating, and optimizing CS Core elements while ensuring seamless signaling and service delivery.

Requirements include deep expertise in legacy and modern signaling technologies, CS Core networks, MNP, and signaling routing.

Qualifications

• Bachelor's degree in a related engineering field.
• Strong hands-on experience with CS Core integration and live network environments.
• Deep knowledge of Diameter, SIP, SS7/C7, and SIGTRAN protocols.
• Experience with M2PA and M3UA signaling frameworks.

Responsibilities

• Integrate, configure, modify, and support CS Core nodes in a live network.
• Prepare, validate, review, and implement configuration scripts and DTs.
• Implement end-to-end signaling routing configurations.
• Configure Diameter, SIP, SS7/C7, SIGTRAN, M2PA, M3UA signaling.
• Support MSC, MSS, MGW, GMSC, HLR/HSS, STP, IP-STP platforms.
• Configure MNP, IN triggering, CSFB services.
• Perform audits and suggest optimizations.
• Monitor signaling performance and network KPIs.
• Analyze and troubleshoot signaling and routing issues.
• Assist in network rollout, migration, and modernization projects.
• Maintain accurate documentation and procedures.

Skills

CS Core experience

Signaling protocols

Diameter

SIP

SS7/C7

SIGTRAN

M2PA/M3UA

MNP

CSFB

MSC/MSS/MGW

GMSC/HLR/HSS

Network troubleshooting

Configuration auditing

Documentation

Education

Bachelor’s degree in Telecommunications Engineering / Electrical Engineering / Computer Science / IT

Tools

Nb/IP

A/IP

IuCS/IP

Job description

Position Summary

Tangent International is urgently seeking an experienced BO Core CS DT Engineer to support live Circuit Switched (CS) Core network operations and integration activities for a major telecommunications project in Riyadh, Saudi Arabia. The successful candidate will be responsible for integrating, configuring, validating, and optimizing CS Core network elements while ensuring seamless signaling, routing, and service delivery across mission-critical telecom networks.

Detailed Job Description

As a BO Core CS DT Engineer, you will play a key role in supporting live network integration, network expansion, configuration management, signaling implementation, and core network optimization activities. You will be responsible for configuring and validating core network nodes, preparing deployment templates (DTs), implementing signaling routes, and ensuring the performance and reliability of CS Core infrastructure.

The role requires deep expertise in legacy and modern telecom signaling technologies, circuit-switched core networks, mobility services, numbering portability, and network routing. You will collaborate closely with operations, planning, optimization, and vendor teams to maintain network stability and support service enhancements.

This opportunity is ideal for experienced telecom core network professionals seeking to work on a large-scale live network environment within the Middle East.

Key Responsibilities

• Integrate, configure, modify, and support Circuit Switched (CS) Core network nodes within a live production network.
• Prepare, validate, review, and implement core network configuration scripts and Deployment Templates (DTs).
• Implement network designs and end-to-end signaling routing configurations.
• Configure and support Diameter, SIP, SS7/C7, SIGTRAN, M2PA, and M3UA signaling protocols.
• Support and administer MSC, MSS, MGW, GMSC, HLR/HSS, STP, DSC, and IP-STP platforms.
• Configure analysis tables, Intelligent Network (IN) triggering, Mobile Number Portability (MNP), and CSFB services.
• Perform configuration audits and recommend optimization and improvement initiatives.
• Monitor signaling performance, network KPIs, and capacity utilization.
• Analyze and troubleshoot signaling, routing, and service-related issues.
• Support network rollout, migration, modernization, and service implementation projects.
• Ensure configuration accuracy and compliance with operational standards.
• Coordinate with cross-functional teams to resolve network incidents and technical issues.
• Maintain technical documentation, configuration records, and implementation procedures.

Required Qualifications & Skills

• Bachelor’s degree in Telecommunications Engineering, Electrical Engineering, Computer Science, Information Technology, or a related discipline.
• Strong experience supporting live CS Core network environments.
• Proven hands‑on experience with CS Core integration and configuration activities.
• Deep knowledge of Diameter, SIP, SS7/C7, and SIGTRAN protocols.
• Experience configuring M2PA and M3UA signaling frameworks.
• Strong knowledge of signaling routing and end‑to‑end call flows.
• Experience with MSC, MSS, MGW, GMSC, HLR/HSS, STP, and IP‑STP platforms.
• Hands‑on experience configuring Nb/IP, A/IP, and IuCS/IP interfaces.
• Strong understanding of Mobile Number Portability (MNP) services.
• Experience supporting Circuit Switched Fallback (CSFB) implementations.
• Expertise in analysis table configuration and signaling route management.
• Experience preparing HLR/HSS configuration scripts.
• Knowledge of telecom network KPIs, capacity monitoring, and performance management.
• Excellent troubleshooting and analytical skills.
• Strong documentation and technical communication capabilities.

Nice-to-Have Skills

• Experience working with Ericsson, Huawei, Nokia, or ZTE CS Core environments.
• Experience with telecom modernization and legacy‑to‑IP migrations.
• Exposure to LTE and VoLTE interworking environments.
• Knowledge of roaming signaling architectures.
• Experience supporting large‑scale operator networks.
• Understanding of service assurance and performance optimization tools.
• Telecom vendor certifications or specialized signaling training.

Why Apply?

• Work on a large-scale live telecom core network environment.
• Gain exposure to advanced signaling and CS Core technologies.
• Participate in critical integration and network evolution initiatives.
• Collaborate with experienced telecom specialists and international teams.
• Enhance expertise in CS Core, signaling, and network optimization.
• Opportunity to work on a 12-month extendable contract with a leading telecommunications consulting organization.

Application Information

• Position: BO Core CS DT Engineer
• Company: Tangent International
• Location: Riyadh, Saudi Arabia
• Contract Duration: 12 Months (Extendable)
• Strong live‑network CS Core integration experience is mandatory.
• Application Email: [e-mail]
• Contact Number: [phone]

Recruitment Pro Tip

Candidates should clearly highlight experience with MSC, MSS, MGW, HLR/HSS, STP, Diameter, SIP, SS7, SIGTRAN, MNP, CSFB, and live network integration activities. Including examples of signaling route implementations, configuration audits, network optimization projects, and KPI improvements will significantly strengthen your application.