Senior Network Engineer

About the role

This role owns the network connectivity and real-time communications infrastructure that enables PBN's VoIP platform to reliably communicate with customer networks, SIP carriers, and the public internet.

What you'll do

• Own end-to-end network troubleshooting for PBN's VoIP traffic between customer environments, PBN's SIP infrastructure, and upstream carriers/PSTN networks
• Diagnose SIP signaling and RTP media issues across customer LANs, firewalls, routers, switches, Wi-Fi networks, VPNs, ISP connections, and internet paths
• Analyze SIP messages, SDP, RTP flows, packet captures, and network telemetry to identify the root cause of call failures and audio-quality issues
• Troubleshoot common VoIP networking problems including NAT traversal, SIP ALG, asymmetric routing, blocked ports, firewall policies, RTP path failures, DNS issues
• Work directly with customer IT/network teams to identify problems within their network and provide clear, technically accurate remediation guidance

What you need

• 7–10 years in it support & networking
• Troubleshooting
• Firewalls
• Networking
• Linux
• TCP/IP
• Routing and switching
• Any graduate

Good to have

• Prometheus
• Grafana
• Datadog
• Terraform
• Telecom
• Incident response