Senior VoIP & Network Engineer - SIP, QoS & SBC Expert

Placements24

East London

Presencial

ZAR 600.000 - 900.000

Jornada completa

Hace 2 días

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Ventajas ofrecidas por este puesto de trabajo

Competitive salary

Medical aid

Retirement fund

Professional development

Generous annual leave

Team events

Descripción de la vacante

Placements24 is seeking a Senior VoIP Network Engineer in East London to design, deploy, and maintain scalable VoIP infrastructure. You will manage IP PBX systems (Asterisk, FreeSWITCH) and SBCs, ensuring high-quality voice services for customers in the Eastern Cape.

Strong VoIP protocol knowledge and troubleshooting skills are essential. You will work with the technical team on network performance, QoS optimization, and security measures, while documenting configurations and participating in

Formación

Bachelor's degree in Computer Science, IT, Telecommunications, or related field; or equivalent practical experience.
4–6 years of experience in network engineering with strong VoIP focus.
In-depth knowledge of VoIP protocols: SIP, RTP, SRTP, H.323.
Hands-on with IP PBX systems (Asterisk, FreeSWITCH, Cisco CallManager) and SBCs (e.g., Sonus/Ribbon, Oracle, AudioCodes).
Strong TCP/IP networking, routing, VLANs, and QoS.
Experience with Wireshark and packet analysis.
Excellent problem-solving, analytical skills, and teamwork.

Responsabilidades

Design, deploy, and maintain scalable VoIP network infrastructure.
Configure VoIP platforms, IP PBX systems, and SBCs.
Monitor network performance and troubleshoot call quality, connectivity, and registration issues.
Ensure security of VoIP network and prevent toll fraud.
Optimize voice traffic routing and QoS for high-quality calls.
Collaborate with network operations and support teams; document configurations and diagrams.
Stay current with emerging VoIP technologies and best practices.
Participate in capacity planning and voice-related expansion projects.
Test and evaluate new VoIP hardware and software solutions.