Telecommunications Systems Administrator

Placements24; Kempton Park; On-site; ZAR 420,000 - 660,000; Full time

Benefits offered by this job

Private medical aid

Provident fund

Training and career advancement

Job summary

Placements24 is seeking a Telecommunications Systems Administrator in Gauteng to manage PBX, VoIP, and mobile communications. The role focuses on keeping all telecom channels reliable, secure, and scalable, with hands-on troubleshooting and proactive upgrades.

You will collaborate with IT and other departments to ensure uninterrupted voice and data services, provide end-user support, and maintain system documentation while adhering to regulatory standards.

Qualifications

• Bachelor's or diploma in IT/Telecommunications or related field.
• Minimum 5 years' experience in telecommunications systems administration.
• Proven PBX (Asterisk/Avaya) and VoIP experience.
• Strong networking knowledge (TCP/IP, DNS, DHCP).

Responsibilities

• Administer and maintain PBX and VoIP systems.
• Monitor network performance and troubleshoot issues.
• Manage user accounts, extensions, and calling features.
• Implement system upgrades and configuration changes.
• Provide end-user support for telecom issues.
• Develop and maintain system documentation and guides.
• Ensure security and integrity of telecom systems.
• Collaborate with vendors for maintenance.
• Manage mobile device deployments and services.
• Plan for scalability and capacity needs.

Skills

PBX administration

VoIP technologies

Networking fundamentals

MDM solutions

Troubleshooting

Customer service

Education

National Diploma or Bachelor's degree in IT/Telecommunications

Tools

Asterisk

Avaya

VoIP platforms

Job description

About the Role

Our client is seeking a dedicated and experienced Telecommunications Systems Administrator to manage and maintain their voice and data communication systems in Tembisa, Gauteng . This critical role involves ensuring the seamless operation of all telecommunications infrastructure, including PBX systems, VoIP services, and mobile communication platforms. The successful candidate will be responsible for system performance, user support, and implementing upgrades and enhancements. You will work closely with IT and other departments to ensure reliable communication channels are always available, supporting the company's operational needs. This position requires a hands‑on approach and a strong commitment to service excellence within the demanding telecom sector.

Key Responsibilities

• Administer and maintain the company's PBX and VoIP systems.
• Monitor telecommunications network performance and troubleshoot hardware and software issues.
• Manage user accounts, extensions, and calling features.
• Implement system upgrades, patches, and configuration changes.
• Provide technical support to end-users for all telecommunication‑related issues.
• Develop and maintain system documentation and user guides.
• Ensure the security and integrity of telecommunication systems.
• Collaborate with vendors for service and equipment maintenance.
• Manage mobile device deployments and associated services.
• Plan for system scalability and future capacity needs.

Requirements

• National Diploma or Bachelor's degree in Information Technology, Telecommunications, or a related field.
• Minimum of 5 years of experience in telecommunications systems administration.
• Proven experience with PBX systems (e.g., Asterisk, Avaya) and VoIP technologies.
• Strong understanding of networking fundamentals (TCP/IP, DNS, DHCP).
• Experience with mobile device management (MDM) solutions.
• Excellent troubleshooting and problem‑solving skills.
• Good communication and customer service skills.
• Ability to work independently and as part of a team.
• Knowledge of relevant telecom regulations and best practices.

Benefits

• This role offers a competitive annual salary, private medical aid, and a provident fund contribution.
• Our client is committed to employee development, providing access to training and opportunities for career advancement within the telecommunications field.
• You will work in a stable environment with a supportive team dedicated to ensuring robust communication infrastructure in Tembisa .