Senior Core Network Engineer – LTE/IMS & SDN/NFV

Placements24; Mtubatuba Local Municipality; On-site; ZAR 900,000 - 1,200,000; Full time

Benefits offered by this job

Annual bonuses

Medical aid

Pension fund

Relocation assistance

Leave allowance

Training and development

Work on national infrastructure

Stable work environment

Job summary

Placements24 is seeking a highly skilled Core Network Engineer to join a leading telecom operator in Richards Bay, KwaZulu-Natal, to design, implement, maintain and troubleshoot core network systems for reliable voice, data and mobile services. You will work with MSCs, SGWs, PGWs, HLR/HSS and IMS, monitor performance, enforce SLAs, and drive upgrades while coordinating with other teams.

The role demands 5–7 years in core network engineering, expertise in SIP, Diameter, GTP, SS7, IP networking

Qualifications

• Bachelor's degree in Electrical Engineering, Computer Science, or a related field.
• 5-7 years of experience in core telecommunications network engineering.
• Deep knowledge of 2G/3G/4G/LTE core network architecture and elements.
• Hands-on experience with core network element configuration and troubleshooting.
• Proficiency in core network protocols (SIP, Diameter, GTP, SS7).
• Experience with IP networking and related protocols.
• Familiarity with NFV/SDN concepts is a plus.
• Strong analytical and problem-solving skills.
• Excellent communication and teamwork abilities.
• Ability to work independently and in high-pressure environments.

Responsibilities

• Design, deploy, and manage core network elements (MSCs, SGWs, PGWs, HLR/HSS, IMS).
• Monitor performance, capacity, and SLAs.
• Perform root cause analysis for network incidents and implement permanent solutions.
• Configure and maintain core network protocols (SS7, SIGTRAN, Diameter, GTP).
• Implement network security measures to protect core network.
• Plan and execute network upgrades, expansions, and technology refreshes.
• Develop and maintain comprehensive network documentation.
• Collaborate with other engineering teams for seamless integration with access/transport.
• Participate in on-call rotation for network emergencies.
• Stay abreast of emerging core network technologies and industry trends.

Skills

Core network design

Network troubleshooting

SIP

Diameter

GTP

NFV/SDN familiarity

Analytical skills

Communication & teamwork

Education

Bachelor's degree in Electrical Engineering, Computer Science, or related field

Tools

Core network equipment (MSC/SGW/PGW/HLR/HSS/IMS)

Job description

Placements24 is seeking a highly skilled Core Network Engineer to join a leading telecom operator in Richards Bay, KwaZulu-Natal, to design, implement, maintain and troubleshoot core network systems for reliable voice, data and mobile services. You will work with MSCs, SGWs, PGWs, HLR/HSS and IMS, monitor performance, enforce SLAs, and drive upgrades while coordinating with other teams.

The role demands 5–7 years in core network engineering, expertise in SIP, Diameter, GTP, SS7, IP networking