Senior Telecom Engineer

TL;DR

Senior Telecom Engineer (VoIP/SIP): Deploying customized telecom solutions, providing 24/7 operational support for cloud contact center networks, and troubleshooting issues with an accent on SIP call routing, network availability, and customer quality. Focus on root-cause analysis of outages, interop testing with carriers, and implementing preventive measures for global voice networks.

Location: Remote, based anywhere in the UK

Company

Leading provider of cloud contact center software serving customers worldwide.

What you will do

• Interface with customer telecom engineers and IT teams to deploy solutions and troubleshoot issues.
• Provide day-to-day operational support for the telecommunications network, analyzing availability and quality problems.
• Act as escalation point for Network Operations Center on critical alerts from SBCs.
• Perform root-cause analyses on service outages and respond to telecom alerts.
• Deploy new services, including interop testing with carriers and customers, and manage vendors.
• Participate in on-call rotation and provide emergency technical recovery.

Requirements

• 3-5 years of telecom engineer experience with VoIP/SIP voice applications
• Detailed knowledge of voice/data communications: SIP, TCP/IP, MPLS, H.248, G.711, G.729, WebRTC, UDP, RTP.
• Experience with Ribbon SBCs, PSX, Sonus/Ribbon, AudioCodes, FreeSWITCH.
• Knowledge of SIP call routing, LCR, security (TLS, IPSEC, ACLs), international routing, direct SIP trunks.
• Proficiency in Wireshark/Empirix for RTP analysis (MOS, jitter, latency, packet loss).
• Intermediate Linux/Unix commands; excellent troubleshooting, documentation, and communication skills.

Culture & Benefits

• Team-first culture focused on innovation, growth, and work-life balance.
• Commitment to diversity, inclusion, and empowering authentic selves.
• 24/7 production support environment with on-call rotation.