Voice Engineer

Hire Resolve; Johannesburg; On-site; ZAR 60,000 - 80,000; Full time

Benefits offered by this job

Competitive salary based on experience

Job summary

A prominent Telecommunications Provider in Johannesburg is seeking a highly skilled individual with comprehensive VoIP expertise and a strong networking background. In this critical role, you will manage technical escalations, troubleshoot complex voice issues, and ensure timely resolutions for clients. Experience with VoIP monitoring tools and a solid understanding of networking fundamentals are essential. This position offers a competitive salary based on your experience and skills.

Qualifications

• Expertise from signaling to termination in VoIP.
• Experience with VoIP Monitoring Tools like VoIPMon or OCOM.
• Understanding of Session Border Controllers (SBCs).
• Experience with SIP, RTP, Codecs, NAT traversal.
• Familiarity with Softswitch platforms like PortaOne.
• Working with upstream providers and telcos.

Responsibilities

• Serve as the primary point for technical escalations.
• Use diagnostic tools to identify and solve voice failures.
• Manage the full incident lifecycle and provide feedback.
• Engage with service providers to resolve complex issues.
• Provide mentorship and training to new agents.

Skills

End-to-end VoIP expertise

Strong Networking Background

Clear Communication

Self-Management

VoIP Technologies (SIP, RTP, Codecs)

SIP Advanced Understanding

Troubleshooting Tools (Wireshark, SIP traces)

Networking Fundamentals (TCP/IP, DNS)

Hardware Knowledge (Mikrotiks, Cisco)

Basic Knowledge (SQL and Linux)

Tools

VoIP Monitoring Tool

Wireshark

Job description

A prominent Telecommunications Provider based in Johannesburg, South Africa, specializing in providing services primarily to businesses (B2B), is seeking a highly skilled individual with end-to-end VoIP expertise and a strong networking background. This role is critical for managing technical escalations, troubleshooting complex voice issues, and ensuring timely resolution for clients, wholesalers, and partners.

Responsibilities

• Serve as the primary point for technical escalations from service teams, clients, and partners (wholesalers, interconnects).
• Use diagnostic tools (e.g., Wireshark, SIP traces, syslog analysis) to identify, investigate, and implement solutions for common and complex voice failures.
• Manage the full incident lifecycle, including ensuring a ticket is logged and providing timely feedback to customers/wholesalers.
• Engage with upstream service providers to resolve complex issues affecting service delivery.
• Provide specific technical support to internal field technicians for voice-related problems.
• Systematically escape more complex issues to senior expertise when required.
• Apply a strong diagnostic mindset and pattern recognition to isolate issues across network layers.
• Assist with departmental special projects and ad-hoc requests delegated by the Networks Manager.
• Contribute to service improvement through proactive monitoring and incident prevention efforts.
• Provide mentorship and training to new agents or interns as required.

Minimum Requirements

• End-to-end VoIP Expertise (signaling to termination).
• Strong Networking Background (routing, switching, and protocols).
• Experience with at least one VoIP Monitoring Tool (e.g., VoIPMon, OCOM, HOMER).
• Foundational understanding of Session Border Controllers (SBCs), ideally ACME Packet.
• Clear Communication: Ability to simplify complex technical information for non-technical audiences.
• Self-Management: Must work independently with minimal supervision.
• Own reliable transport is essential.
• VoIP Technologies: SIP, RTP, Codecs, NAT traversal.
• Softswitch Experience: PortaOne, Bicom, or similar platforms.
• Troubleshooting Tools: Wireshark, SIP traces, syslog analysis.
• Networking Fundamentals: TCP/IP, DNS, DHCP, Firewalls, VLANs, QoS.
• Hardware Knowledge: Mikrotiks and Cisco Technologies.
• SIP Advanced: Advanced Understanding of SIP Trunking (IP Auth and Digest).
• Provider Experience: Working with upstream providers/telcos and tunnelling methods.
• Basic Knowledge: SQL and Linux Experience.

Benefits

• Competitive salary based on experience (salary can potentially be more based on experience/skills).

IF you meet the above requirements and want to make a career-changing move, apply today by emailing your CV to [e-mail] or [e-mail].