VoIP Operations Engineer (Mid-Level)

New

SingleCommVoIP telecommunications

USA - East; Remote working EST hours, EST hoursFull-TimeMiddle

Salary not disclosed

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Job Details

Have 2+ years of hands-on VoIP, telecom or voice infrastructure experience.
Have production exposure to FreeSWITCH and/or Kamailio.
Have experience operating real-time systems in Linux environments and be comfortable operating production systems.
Troubleshoot FreeSWITCH dialplans, gateways, SIP profiles, codec negotiation, NAT handling and call failures.
Understand SIP call flows, routing, error handling, tracing and multi-leg call correlation.
Troubleshoot RTP flow, SDP, codec mismatches and one-way or no-audio issues.
Use SIP tracing tools such as sngrep, ngrep, packet captures or HOMER, and be comfortable with Wireshark.
Understand telco concepts including origination and termination, DIDs, carriers, SBCs, SIP interconnects and voice KPIs.
Work with AWS EC2, security groups and basic VPC/networking; maintain existing Terraform modules and use Ansible.
Understand Docker service networking and volumes, and CI/CD build, deploy and rollback workflows.
Use monitoring and alerting tools such as Prometheus, Grafana or CloudWatch, and perform infrastructure sizing and capacity planning.
Have strong Linux command-line, log-analysis and network/system troubleshooting skills, plus proficiency in Python or Bash scripting.

Operate and support a live VoIP platform.
Respond to alerts and troubleshoot production incidents.
Debug SIP/RTP issues and call-quality problems.
Work with carriers and vendors during incidents.
Provide Account Executives with clear, evidence-based technical explanations during incidents and escalations.
Use SIP traces, logs and metrics to identify whether issues are internal, carrier-side or external/customer-side.
Improve monitoring, alerting and automation.
Contribute to scaling and architecture decisions.
Identify cost-saving opportunities based on resource utilization.

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