A leading telecoms business is seeking an experienced Voice Engineer to join their team in a fully remote role. This position offers the opportunity to work from home full-time while playing a key role in 3rd line support, customer onboarding, and leading critical voice infrastructure projects. The successful candidate will work extensively with VoIP, SIP, and SBC technologies, ensuring seamless, high-quality communication solutions for clients. Responsibilities: Provide 3rd line support for complex voice-related escalations, troubleshooting and resolving issues. Oversee the onboarding of new customers, ensuring seamless implementation of voice services. Lead and manage voice infrastructure projects, from planning through to successful deployment. Configure, maintain, and support VoIP, SIP, and Session Border Controllers (SBCs). Collaborate with internal teams and external vendors to enhance voice solutions. Ensure security, compliance, and best practices are followed within the voice environment. Proactively monitor and optimize system performance and reliability. Key Skills: Proven experience as a Voice Engineer, with expertise in VoIP, SIP, and SBCs. Strong background in 3rd line support, handling complex voice infrastructure challenges. Experience in customer onboarding, delivering seamless voice solutions for new clients. Good understanding of networking principles, including QoS and routing. Hands-on experience with voice platforms such as Cisco, Microsoft Teams, Avaya, or similar. Ability to manage projects, communicate effectively, and lead technical implementations. Strong analytical and problem-solving skills with a proactive mindset.