3rd Line Engineer

Third Line TechnicianAnnual Salary: Up to 37,000, dependent on experienceLocation: HampshireJob Type: Full-time - hybridHours: 35 hours per week, Monday to Friday 09:00-17:00, plus on-call rotaThird Line IT Service Desk Technician, where you will play a pivotal role in maintaining the seamless operation of our IT infrastructure by resolving complex technical issues escalated from first- and second-line support.Day-to-day of the role:Advanced Technical Support:Resolve complex hardware, software, and network issues escalated from lower-tier support.Conduct root cause analysis and implement long-term solutions.Manage high-impact incidents to ensure minimal business disruption.Server and Application Support:Troubleshoot server issues across cloud (AWS), on-premise, and embedded environments.Support applications written in Node.js and manage FreeSwitch systems.Apply over-the-air firmware updates and monitor system performance.SIP, VoIP and Network Management:Maintain and troubleshoot SIP-based communication systems including VoIP and VoLTE.Configure SIP trunks and resolve complex call routing and quality issues.Manage network configurations affecting SIP traffic, including firewalls, NAT, and QoS. Knowledge Sharing and Documentation:Mentor junior technicians and contribute to internal training.Create and maintain detailed documentation and system diagrams.Vendor and Supplier Liaison:Collaborate with third-party vendors to resolve technical issues.Assist in managing SLAs and ..... full job details .....