Lorache Group Network Security Engineer Jobs in Nigeria

Lorache Group Network Security Engineer Jobs in Nigeria


Roles and Responsibilities

  • Maintain packet switching core nodes (SGSN, GGSN, MME, SGW/PGW, CG, and Switch) and resolve UE browsing issues.

  • Handling technical queries, technical presentation and root cause analysis.

  • Back Office support, Alarm monitoring, problem identification and resolution.

  • Designed EPC packet switched core network topology and planned IP address/VLANs for new build LTE network.

  • Monitoring and analysis of PS core Performance KPIs for any complex issues in the network.

  • Analysis of traffic measurements, success rates and other PS KPI performance

  • Integration of BSC, RNC, eNodeB, HSS, OCS, PCRF with PS core network nodes.

  • PS projects implementations and support for operator networks.

  • STP and DRA Swap project.

  • Designed the EPC packet switched core network topology and planned IP address/VLANs for new build LTE network.

  • Commissioned and configured SGW/PGW, MME and CG and achieved end to end first call.

  • Configured and integrated LTE network with already existing 2G and 3G Network.

  • Performed software upgrade, license loading and rectifications on Huawei SGSN, GGSN and CG to enable interoperability between the GPRS/UMTS and LTE nodes.

  • Strong Knowledge of MME, SGSN, SGW, PGW, GGSN, PCRF, VoLTE, CG, DNS, URL Server, OCS

  • Strong Knowledge on Protocols: BSSAP, RANAP, GTP, MAP, SCTP, Diameter, SGSAP, S1AP, RADIUS

  • Good Knowledge on Interfaces: Gb, Ga, Gn/Gp, Gr, Gf, Gi, Gy, Gx, SGs, S1, S6a, S10/S11, S5/S8, GGSN, SGW, PGW , SGSN, MME, CG, DNS, Switch, Firewall, SPS, HLR/HSS, PCRF

  • KPIs Analysis: Mobility, Accessibility, Retain ability, Availability, etc

  • Analysis and Solution for E2E problems like throughput, accessibility, and mobility.

  • Abilities to evaluate the network performance.

  • Good knowledge on CS nodes configuration and parameters (MSC MGW HLR HSS etc), basic and optional features to help to improve the network performance and user experience.

  • Abilities to
    Planned and Designed HLD/LLD for entire EPC Core.

  • Abilities to Implement Layer7 DPI, Content Based Charging, service based traffic shaping, flow based charging and Bandwidth control.

  • Configuration of Cisco routers and switches.

  • Huawei Routers and Switches.

  • Strong Knowledge of routing protocols such as static, ospf, isis, bgp, mpls,l2vpn.

  • Hands on Huawei PS Core equipment's and Cisco Routers.

  • Availability to system 24X7 for any issue resolution and willing to learn further.

    Requirements

  • Graduate in Computer Science / Information Technology / Networking / telecom.

  • From 4 - 5 Years of experience

  • Certification required: CCNP, CCSP, CCDA

  • Working knowledge on Cisco & Huawei network switches and routers.

  • Detailed technical knowledge of L2 & L3 routing, switching protocols.

  • Available to work in 24*7 shift time, on-call support.

    How to Apply

  • Interested and qualified candidates should send their CV to:

  • lorachevacancy@gmail.com using the Job Title as the subject of the mail.


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