EPC Core Network Engineer at Ascentech Services Limited

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An EPC Core Network Engineer at Ascentech Services Limited

We are recruiting to fill the position below:

Job Title: EPC Core Network Engineer

Location: Lagos
Job Type: Full Time

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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

  • B.Sc. in Computer Science / Information Technology / Networking / telecom.
  • Minimum of 4 years working 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.

Application Closing Date
25th September, 2020.

How to Apply
Interested and qualified candidates should kindly send their CV to: [email protected] using the “Job Title” as the subject of the mail.

Note: Only shortlisted candidates will be contacted.

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