3rd Line Network Engineer X 2 (1 Year Fixed Term Contract)

Key areas of Responsibilities:

  • Acting as technical resource on internal and external projects
  • Resolving issues that arise on the CORETX network or within customer environments
  • Working with our Platforms team to ensure the smooth running of our Cloud environment
  • Performing maintenance on the CORETX network, or customer networks out of hours as required
  • Provisioning new services or customers within our environment
  • Supporting other staff members with escalations or issues
  • Reporting to the Network Operations Manager regarding problems or issues detected
  • Monitoring and managing tickets within the CORETX systems in response to raised alarms or customer requests


  • Ensure continued smooth operation of the network core
  • Provide assistance to other team members on the Juniper platform
  • Maintain the professional reputation of the department to our clients
  • Work towards developing client relations and thus developing their enterprise environments
  • Work with the rest of the department to ensure that we remain on-curve for developing our services and performing improvement works




  • Technical, analytical and interpersonal skills required for Network Design and Implementation, Network Troubleshooting and Project work
  • Current JNCIS-SP or JNCIP-SP certification
  • Knowledge of VoIP operations including L2 & L3 QoS
  • Maintain network security through proper configuration of VPN and Firewalls
  • Ability to communicate in an understandable, polite and friendly manner, both written and verbal
  • Strong organizational skills and ability to multi-task in a busy business environment
  • Availability in response to needs of the customer for installation, maintenance and equipment malfunctions
  • Advanced knowledge of internal and external routing protocols – OSPF / BGP / EIGRP / IS-IS
  • Advanced knowledge of VPLS / MPLS / RSVP-TE / L2VPN P & PE node configuration and troubleshooting
  • Strong experience working in a service provider environment, primarily focusing on JUNOS devices such as MX Routers for Carrier Grade routing & switching


  • Knowledge of Cisco ASA, Checkpoint, SRX, Fortinet, SonicWall, Watchguard and Netscreen firewalls
  • Knowledge of load balancers from vendors including RiverBed, F5, HAProxy
  • Experience using Solarwinds monitoring platform or other similar product
  • Knowledge of Cisco Nexus 5k and related technologies including Fabricpath and VPC+
  • Experience working with self-lit dark fibre and managed optical units such as PacketLite
  • Valid CCNP certification

Location: Croydon

To apply for this position, please send us an email.