Driving the resolution of complex customer issues, the full-time remote Lead Technical Support Engineer will serve as a senior technical resource, mentor fellow engineers, and collaborate with various teams to enhance product quality and support processes. Key responsibilities: Lead investigations and resolutions of complex technical issues escalated from support teams Act as the primary technical owner for high-priority customer escalations, coordinating with Engineering and third-party partners Mentor Technical Support Engineers and contribute to the development of technical documentation and continuous improvement initiatives Required qualifications: Previous experience in a client-facing technical role for a product business Strong expertise in cloud telephony and VoIP troubleshooting Proficiency in using network diagnostic tools for real-time communications Ability to analyze SIP call flows and troubleshoot across customer networks College degree