Job Description Purpose of the Role The Senior Network LAN Engineer is responsible for supporting the design, configuration, monitoring, and maintenance of LAN network hardware, systems, and software; including preparing any documentation for future reference and ensuring communication regarding network performance and other issues is provided timely. Accountabilities Working in partnership with IAG Tech and the business to: Be the lead technical role in resolving complex service incidents, applying diagnosis, maintenance, change, and configuration control attributes to bring about a resolution. Consistently perform and deliver outputs within the service contract time constraints (KPIs & OLAs/SLAs). Apply technical governance to inbound deliveries from the project design phase to ensure they accurately reflect the live environment and are appropriately structured to enable successful technical service delivery. Develop and implement detailed logical designs in areas of – LAN switching, Layer 2/3 protocols, VLANs, and trunking. Analyse traffic behaviours, identify, and resolve any congestion or traffic issues related to LAN hardware or protocols. Develop robust network designs, maximising the usage of switches, routers, and LAN equipment. Monitor LAN performance to determine whether adjustments need to be made and to identify where changes will be required in the future. Collaborate with internal and external stakeholders to fill information gaps and communicate architecture and technical solutions. Establish procedures and best practices for LAN operations.