Network Support Engineer

Liberty Latin America
Kingston upon Thames, UK
13 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Experienced
Experience required
3 years minimum
Working hours
Regular working hours

Tech stack

Access Network VoIP Unix Computer Networks Customer Data Management Wavelength-Division Multiplexing Dynamic Host Configuration Protocol Linux Domain Name System (DNS) Ethernet Networking Hardware Internet Protocol
+19 more
IPTV Multi-protocol Systems MySQL Network Architecture Network Control Routing Oracle (Applications) Software Configuration Management Solaris (Operating System) Subsystems Virtualization Technology Network Routing Computer Network Operations Juniper Information Technology 3-tier Architectures Cisco Soft Switches Vmware

Job description

The primary responsibilities of this position are for the support, maintenance and administration of the fixed voice network, Data, IPTV, IP/MPLS and ISP platforms to maintain a 99.99% Service Level Agreement. This shall ensure that the services provided to customers are continuously available and perform to Service Level Agreement (SLA) performance levels. Responsibilities: WHAT YOU’LL DO * Management of Core Voice Network, services and interconnections

  • Huawei Softswitch, IP Multimedia System (IMS)

  • Routing on Universal Access Control (UAC
  • Home Subscriber Subsystem HSS Management
  • Oracle virtual Session Border Controller (vSBC)
  • Provisioning of SIP services on SBCs
  • Subscriber Management (DMS / HFC)
  • Local support to assist the regional voice team, NOC (VNOC), VQA and Support CSC
  • Migration of MYUC subscribers from legacy Oracle 4250 to Oracle vSBC infrastructure
  • Provisioning of MYUC business groups (B2B voice service)
  • Joint work with OLO for implementation and troubleshooting of voice services (through carrier team)
  • Tier 3 troubleshooting of voice services of other local operators (OLO’s), MYUC (Hosted PBX) services, mobile mobile-to-mobile calls (transit routes on Oracle vSBC), Fixed-to-Mobile and Mobile-to-Fixed calls
  • Mavenir voicemail platform administration for fixed and mobile subscribers
  • Audiocodes configuration for copper migration

  • Ensure that ISP services are protected through monitoring, hardware, software, operating system upgrades, timely suggestions related to the IP network, and keeping backup servers online to improve robustness.

  • Provide 2nd level support for ISP service failures related to RADIUS, DNS, DHCP, email, and other services to internal staff, staff supporting external customers, and external customers.
  • Ensure the configuration of servers and customer data is frequently backed up to ensure business continuity.
  • Provide 2nd Level support for the Voice, IPTV/HubTV, and Broadband operations of a carrier class data network and serve as the operations subject matter expert in Broadband services (xDSL, PON, CMTS, MPLS), and Metro-Ethernet services including support of the core networks

  • Provide 2nd level support for issues/events/outages on the Core IP/MPLS Network

  • Provide input and suggestions to improving all operational aspects, related to the IPTV, Broadband, Transmission and Voice network infrastructure which could add value into increasing the quality of the service - end to end.

  • Assist with correcting capacity and performance issues for all Network traffic.

  • Updates service request tickets and performs escalations as required

  • Produce weekly and monthly reporting and perform trend analysis to assist in the support of ISP, BB, voice and Video.

  • Local support to assist the NOC, VQA and Support CSC

  • Interface with external groups such as Vendor Technical Support as required.

  • Prepare change request, MOP, reason for Outage (RFO’S) and Root Cause Analysis documentation after incidents/outages.

  • Performs miscellaneous job-related duties as assigned by the Senior Manager or D.T.O

Key Measures

  • Define KPIs for ISP Services, IP/MPLS and access network, monitor and track KPIs to ensure High Network Availability.
  • Schedules Pro-active Maintenance on the core network equipment
  • Perform and document network backups and routine maintenance on schedule
  • Document network problems and resolutions for future reference
  • Work with the different technology teams for implementation of new technologies and arrange for knowledge transfer
  • Monitor the performance of the network elements periodically and reports any change impacting service availability and/or performance to the Network Operations Center, ensuring timely resolution and clearance of network incidents consistent with Service Level Agreements.
  • Action service orders in the Liberate queues within the SLA

Requirements

  • Bachelor’s degree in Computer Science, Telecommunications, Electrical Engineering, or a related field.
  • Industry certifications such as CCNA, CCNP, Juniper or equivalent highly preferred.
  • Strong networking skills in the Cisco & Juniper arena (Installation, configuration and troubleshooting)
  • Must be able to understand networking routing and switching.
  • Technical knowledge (including development, maintenance and troubleshooting) of Network Equipment.
  • Working Knowledge (3 yrs +) of routing protocols, QoS, policy-based routing, MPLS and other routing technologies.
  • Working experience (3 yrs +) of UNIX, DWDM, Switching, T1, VOIP (SIP, H248), HFC, GPON, XDSL, Juniper MPLS, Nokia MPLS, Calix, Adtran, Huawei and other MSANs
  • Ability to provide critical information in a clear, concise and quick manner and possess excellent oral & written communication skills.
  • Strong knowledge of UNIX such as Linux and Solaris operating system.

  • In-depth knowledge of software configuration and installation (OSC Radiator, ISC Bind, etc) from source code and Linux packages

  • Sound knowledge of virtualization (VMware) and database management (Mysql)

Apply for this position

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