Hayward Hawk is recruiting on behalf of an established global technology provider is expanding its specialist voice engineering team and is seeking a Senior Voice Solutions Engineer to join its Belfast-based function. This role sits at the centre of a globally distributed team, supporting enterprise clients across EMEA, the US and APAC in a follow-the-sun model. This is a hands-on, customer-facing role, combining pre- and post-sales engineering, technical design, configuration and advanced troubleshooting of complex voice solutions. The Role You will work closely with customers and internal stakeholders to design, deploy and support SIP and VoIP-based voice platforms. Configuring and planning work, fault finding at protocol level, and joining customer calls to explain technical designs, security considerations and voice architectures. The role offers flexible working hours, with occasional early starts to support APAC regions, and travel to client sites in the UK and Europe. Key Responsibilities Pre- and post-sales technical support for enterprise voice solutions Configuration and support of SIP, VoIP and RTP-based platforms Monitoring and troubleshooting voice services at protocol and packet level Working extensively with SBCs (Oracle preferred; Ribbon or AudioCodes also relevant) SIP trunking and PBX integration, including Asterisk Microsoft Teams voice integration Technical planning and design for customer deployments Customer-facing technical presentations and troubleshooting calls Collaboration with global engineering teams across multiple time zones Required Experience Strong, hands-on experience with SBCs (Oracle, Ribbon, AudioCodes or similar) Deep understanding of SIP, VoIP and RTP, including real-world troubleshooting Experience with SIP trunking and enterprise voice environments PBX experience (Asterisk highly desirable) Confident working directly with customers in technical discussions Solid networking fundamentals with a voice focus Desirable Scripting or automation experience (e.g. Python) Packet capture and analysis tools (Wireshark / PyShark) Microsoft Teams Direct Routing experience SSO exposure Background in financial services, trading platforms or telecoms/service providers The Person Senior-level voice engineer who enjoys hands-on technical ownership Comfortable operating in a small, specialist, global team Flexible, collaborative and customer-focused Willing to travel periodically across the UK and Europe What you'll get in return: Competitive Salary Hybrid role in Belfast Opportunity to travel Flexible Benefits Package! This is a strong opportunity for an experienced voice engineer looking to work on business-critical voice platforms, with clear scope for progression as the team and wider organisation continues to grow. Contact Aaron at Hayward Hawk for more information on. Skills: SBC PBX wireshark pyshark