Global VoIP Engineer: Telephony & Network Expert

Telnyx; Argentina; On-site; ARS 1,800,000 - 2,400,000; Full time

Job summary

Telnyx is seeking a skilled VoIP Engineer in Argentina to design, optimize and operate our telephony platform. You’ll work with global users and engineers to deliver reliable voice services and scalable SIP infrastructure.

You’ll help triage issues, guide developers, and implement monitoring, testing and automation for telephony applications, leveraging Kamailio/OpenSIPS, FreeSWITCH and related technologies.

Qualifications

• Degree in Computer Science, IT, Telecommunications or related field.
• Strong understanding of IP telephony, TCP/IP networks and related protocols (SIP, RTP, RTCP, ISUP, TLS, STUN, TURN, WebRTC).
• Experience with Open Source VoIP applications such as Kamailio, OpenSIPS, FreeSWITCH, RTPEngine, Asterisk and open source tools such as Wireshark, sngrep and Homer.
• Experience with Linux, Open Source tools and shell scripting.
• Experience with containers and automation-orchestration tools such as Docker, Ansible, Jenkins, Kubernetes.
• Familiarity with programming in Python, Elixir or Go are a plus.

Responsibilities

• Understand how all Telephony services work and how they are integrated to the platform.
• Operate, maintain, expand and support SIP proxies based on Kamailio or OpenSIPS applications.
• Handle level 3 troubleshooting escalations and triaging.
• Analyze telephony traffic patterns and identify issues and anomalies.
• React to critical alerts in order to rapidly return to a full-service state.
• Troubleshoot and resolve voice and network protocol communication issues.
• Interface with partner organizations for interconnections and expansions.
• Design, build, test, deploy and maintain monitoring, alerting, QA and logging tools for Telephony applications.
• Coordinate system maintenance and deployment events.

Skills

VoIP technology

IP networking

SIP/RTP protocols

Kamailio/OpenSIPS

FreeSWITCH/Asterisk

Wireshark

Linux

Docker/Kubernetes

Python/Elixir/Go

Troubleshooting

Education

Bachelor's degree in Computer Science or related field

Tools

Kamailio

OpenSIPS

FreeSWITCH

RTPEngine

Asterisk

Wireshark

sngrep

Homer

Docker

Ansible

Jenkins

Kubernetes

Job description

Telnyx is seeking a skilled VoIP Engineer in Argentina to design, optimize and operate our telephony platform. You’ll work with global users and engineers to deliver reliable voice services and scalable SIP infrastructure.

You’ll help triage issues, guide developers, and implement monitoring, testing and automation for telephony applications, leveraging Kamailio/OpenSIPS, FreeSWITCH and related technologies.