Senior Voip Network Engineer

Placements24; East London; Vor Ort; ZAR 600.000 - 900.000; Vollzeit

Benefits dieser Stelle

Competitive salary

Medical aid

Retirement fund

Professional development

Generous annual leave

Team events

Zusammenfassung

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

Qualifikationen

• 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.

Aufgaben

• 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.

Kenntnisse

SIP Protocols

RTP

SRTP

H.323

Asterisk

FreeSWITCH

Cisco CallManager

VoIP Troubleshooting

QoS

Wireshark

TCP/IP Networking

Communication Skills

Team Collaboration

Ausbildung

Bachelor's degree in Computer Science / IT / Telecommunications / related field

Tools

Asterisk

FreeSWITCH

Cisco CallManager

Jobbeschreibung

About the Role

Our client, a rapidly growing telecommunications provider in East London , is seeking a talented Senior VoIP Network Engineer to join their dedicated technical team. This role is critical for the design, implementation, and ongoing support of our client's Voice over IP (VoIP) infrastructure, ensuring reliable and high-quality voice services for their customers across the Eastern Cape . You will be responsible for managing VoIP platforms, PBX systems, session border controllers (SBCs), and associated network components. The ideal candidate will possess a strong understanding of VoIP protocols (SIP, H.323), networking fundamentals, and troubleshooting complex voice communication issues. This is an excellent opportunity to work with modern voice technologies and contribute to the expansion of advanced communication solutions. Your expertise will be vital in maintaining service continuity and enhancing the voice experience for our client's diverse customer base.

Key Responsibilities

• Design, deploy, and maintain scalable and resilient VoIP network infrastructure.
• Manage and configure VoIP platforms, IP PBX systems (e.g., Asterisk, FreeSWITCH), and Session Border Controllers (SBCs).
• Monitor network performance and troubleshoot VoIP-related issues, including call quality problems, connectivity failures, and registration issues.
• Ensure the security of the VoIP network, implementing measures to prevent toll fraud and unauthorized access.
• Optimize voice traffic routing and Quality of Service (QoS) parameters to ensure high-quality voice calls.
• Collaborate with network operations and support teams to resolve customer-reported voice issues.
• Develop and maintain documentation for VoIP configurations, procedures, and network diagrams.
• Stay current with emerging VoIP technologies and industry best practices.
• Participate in capacity planning and network expansion projects related to voice services.
• Conduct testing and evaluation of new VoIP hardware and software solutions.

Requirements

• A Bachelor's degree in Computer Science, Information Technology, Telecommunications Engineering, or a related field, or equivalent practical experience.
• A minimum of 4-6 years of experience in network engineering, with a strong focus on VoIP technologies.
• In-depth knowledge of VoIP protocols, including SIP, RTP, SRTP, and H.323.
• Hands-on experience with IP PBX systems (Asterisk, FreeSWITCH, Cisco CallManager) and Session Border Controllers (SBCs) from vendors like Sonus/Ribbon, Oracle, or AudioCodes.
• Strong understanding of TCP/IP networking, routing protocols, VLANs, and QoS.
• Experience with network monitoring tools and packet analysis (e.g., Wireshark).
• Familiarity with cellular technologies (GSM, LTE) and their integration with VoIP is a plus.
• Excellent problem-solving and analytical skills, with a methodical approach to troubleshooting.
• Strong communication and interpersonal skills, with the ability to work effectively in a team.
• Experience working within the East London region is advantageous.

Benefits

• Competitive salary and performance-based bonuses.
• Comprehensive medical aid and retirement fund contributions.
• Opportunities for professional development, training, and certifications in VoIP and networking.
• Generous annual leave allowance.
• Exposure to modern voice communication technologies.
• A collaborative and supportive team environment.
• Career growth opportunities within a growing telecommunications company.
• Regular team-building activities and social events.