VoIP Systems Engineer

Placements24; Mbombela (Nelspruit); Hybrid; ZAR 446,000 - 781,000; Full time

Benefits offered by this job

Remote work

Cutting-edge VoIP tech

Learning resources

Contract extension potential

Job summary

Placements24 is seeking a skilled VoIP Systems Engineer for a contract role. You will design, implement, configure and support VoIP infrastructure to ensure reliable, scalable voice services for a diverse client base, with a remote work arrangement.

Responsibilities include deploying PBX, softswitches and gateways; configuring SIP/RTP/SCCP; monitoring performance and ensuring high availability; and maintaining documentation and diagrams.

Qualifications

• 3+ years of hands-on VoIP design and admin experience.
• Strong knowledge of SIP, RTP, and telephony standards.
• Experience with VoIP platforms: Asterisk, CallManager, FreeSWITCH.
• Excellent problem-solving and independent work.

Responsibilities

• Design, deploy, and manage VoIP systems including PBX and gateways.
• Configure SIP, RTP, and other VoIP protocols.
• Monitor performance and ensure high availability.
• Plan upgrades and migrations of VoIP systems.
• Develop documentation and diagrams for VoIP configurations.
• Provide technical support for VoIP incidents.

Skills

VoIP design

VoIP troubleshooting

IP Networking

SIP/RTP/SCCP protocols

Documentation

Education

Bachelor's degree in CS/Telecommunications

Tools

Asterisk

Cisco CallManager

FreeSWITCH

Job description

About the Role

Our client, a dynamic telecommunications solutions provider, is actively seeking a skilled and experienced VoIP Systems Engineer for a contract position. This role will focus on the design, implementation, configuration, and ongoing support of Voice over IP (VoIP) systems and related infrastructure. You will play a key role in ensuring the reliability, scalability, and performance of our client's VoIP services for their diverse customer base. This is a remote opportunity, offering the flexibility to work from anywhere. We are looking for a motivated individual with a strong technical background in VoIP technologies and a proven ability to troubleshoot complex voice communication systems. Your expertise will be crucial in delivering seamless and high-quality voice solutions.

Key Responsibilities

• Design, deploy, and manage VoIP telephony systems, including PBX, softswitches, and gateways.
• Configure and maintain VoIP protocols such as SIP, H.323, and RTP.
• Monitor VoIP system performance, troubleshoot issues, and ensure high availability and quality of service.
• Implement and manage call routing, voicemail, conferencing, and other voice features.
• Develop and maintain documentation for VoIP system configurations, network diagrams, and troubleshooting guides.
• Collaborate with network and system administrators to ensure seamless integration of VoIP services.
• Perform regular system updates, patches, and security configurations.
• Assist in the planning and execution of VoIP system upgrades and migrations.
• Provide technical support for VoIP-related incidents and user inquiries.
• Stay current with emerging VoIP technologies and best practices.

Requirements

• Bachelor's degree in Computer Science, Telecommunications Engineering, or a related field.
• 3+ years of hands‑on experience with VoIP system design, implementation, and administration.
• In‑depth knowledge of VoIP protocols (SIP, RTP, SCCP) and telephony standards.
• Experience with leading VoIP platforms (e.g., Asterisk, Cisco CallManager, FreeSWITCH).
• Strong understanding of IP networking, including TCP/IP, DNS, DHCP, VLANs.
• Experience with network troubleshooting tools (e.g., Wireshark).
• Familiarity with codecs and voice quality metrics (MOS, Jitter, Latency).
• Excellent problem‑solving skills and the ability to work independently.
• Strong written and verbal communication skills.
• Certifications such as CVOICE or CCNP Voice are a plus.

Benefits

• Competitive contract rate commensurate with experience.
• Flexible, remote work arrangement.
• Opportunity to work with cutting‑edge VoIP technologies.
• Exposure to a variety of challenging projects.
• Potential for extension or future contract opportunities based on performance.
• Access to online learning resources for skill enhancement.