Working on BAU projects across the Packet Core swap out, Messaging Platform replacement and other core network projects. You will need to be strong in IP connectivity/networking and MPLS. You will need to know network design, resilience and performance. Need to have 2 years+ experience with mobile networks – Cisco, Huawei or Juniper. Must know Voice and RAN interfaces such as MSC, GGSN, SGS or E1 (voice circuit). Knowledge of NGN Soft switch / MGW (Media Gateway, IMS (IP Multimedia Subsystem, PCRF) would be ideal.