VoIP Network Specialist - Unified Communications

Placements24; Vereeniging; Hybrid; ZAR 480,000 - 860,000; Full time

Benefits offered by this job

Fully remote work arrangement

Medical aid

Retirement fund contributions

Continuous learning opportunities

Job summary

Placements24 is seeking a VoIP Network Specialist to design, implement, and support VoIP and UC solutions in a remote-first team. You will ensure secure call routing, QoS, and scalable cloud communications for diverse clients.

The role requires 3–5 years of hands-on VoIP/UC experience, proficiency with SIP/H.323/RTP, and SBC management. Strong problem-solving and independent work skills are essential in a remote, client-facing environment.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Telecommunications, or related field.
• Minimum 3–5 years' hands-on VoIP and UC experience.
• Strong knowledge of SIP, H.323 and RTP protocols.
• Experience with major UC platforms and SBC configuration.
• Good troubleshooting and remote-work capability.

Responsibilities

• Design, deploy, and manage VoIP/UC infrastructure including PBX, gateways, endpoints.
• Configure and maintain SBCs for secure call routing.
• Troubleshoot complex voice-network issues and perform root-cause analysis.
• Monitor voice quality and network performance; address issues proactively.
• Document networks with diagrams and configuration guides.
• Collaborate with clients and internal teams to meet requirements.
• Implement security protocols for VoIP/UC networks.
• Stay updated on VoIP/UC/cloud-communications advances.
• Assist in evaluating and integrating new platforms and features.
• Provide expert voice-related incident support.

Skills

VoIP

Unified Communications

SIP

H.323

RTP

SBCs

Troubleshooting

Documentation

Remote work

Security practices

Education

Bachelor's degree in IT/CS/Telecommunications

Tools

Session Border Controllers (SBCs)

UC platforms (Cisco UC, MS Teams, Asterisk, Avaya)

Job description

About the Role

Our client is at the forefront of revolutionising business communication and is seeking a talented VoIP Network Specialist to join their fully remote team. This exciting opportunity focuses on the design, implementation, and support of Voice over IP (VoIP) and unified communications (UC) solutions for a diverse client base. You will play a key role in ensuring the seamless operation, scalability, and security of our client's advanced communication platforms. This role is ideal for a proactive, self-motivated professional who excels in a remote-first environment and has a passion for delivering high-quality, integrated communication experiences. If you possess strong technical expertise in VoIP and UC technologies and thrive on solving complex network challenges, this is your chance to make a significant impact in the telecoms industry.

Key Responsibilities

• Design, deploy, and manage VoIP and unified communications infrastructure, including PBX systems, gateways, and endpoints.
• Configure and maintain session border controllers (SBCs) to ensure secure and reliable call routing.
• Troubleshoot complex voice network issues, performing root cause analysis and implementing timely resolutions.
• Monitor network performance and voice quality, identifying and addressing potential issues proactively.
• Develop and maintain comprehensive documentation for VoIP and UC systems, including network diagrams and configuration guides.
• Collaborate with clients and internal teams to understand requirements and provide optimal communication solutions.
• Implement and manage security protocols for VoIP and UC networks, protecting against threats.
• Stay updated on the latest advancements in VoIP, UC, and cloud communication technologies.
• Assist in the evaluation and integration of new communication platforms and features.
• Provide expert technical support for voice-related incidents and service requests.

Requirements

• Bachelor's degree in Information Technology, Computer Science, Telecommunications, or a related field.
• Minimum of 3-5 years of hands-on experience in managing and supporting VoIP and unified communications environments.
• Strong knowledge of VoIP protocols such as SIP, H.323, and RTP.
• Experience with major UC platforms (e.g., Cisco UC, Microsoft Teams, Asterisk, Avaya).
• Proficiency in configuring and managing Session Border Controllers (SBCs).
• Understanding of network infrastructure, including TCP/IP, LAN/WAN, QoS, and firewalls.
• Excellent troubleshooting skills, with a methodical approach to problem-solving in a remote setting.
• Strong communication and customer service skills, with the ability to explain technical concepts clearly.
• Self-motivated and able to work independently with minimal supervision.
• Experience with cloud-based communication platforms is a plus.
• Relevant certifications (e.g., CCNA Voice, CCNP Collaboration) are highly desirable.

Benefits

Our client offers a competitive salary, a comprehensive benefits package including medical aid and retirement fund contributions, and the distinct advantage of a fully remote work arrangement, providing unparalleled flexibility. You will have access to continuous learning opportunities, including online courses, workshops, and certification support, to keep your skills sharp in the evolving telecoms landscape. Our client fosters a culture of innovation, collaboration, and mutual respect, empowering employees to take ownership and drive success. This role offers significant opportunities for professional growth and advancement within a company that is shaping the future of business communications across South Africa.