> Markdown version of [/jobs/ext/2047121-network-support-engineer](https://www.wearedevelopers.com/jobs/ext/2047121-network-support-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Support Engineer - **Company:** Liberty Latin America - **Location:** Kingston upon Thames, UK - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** 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, 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 - **Published:** August 14, 2026 - **Apply:** https://www.careerjet.co.uk/job/gb7d0c1899a09a4b7fc18cfb168ff0ec3c/eaa ## About the Role * 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) ## 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 ## Related Videos - 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