Core Network Engineer

McKinney, TX

Job ID: 3001HybridPosition closed

Job Details

This position is no longer accepting applications. See current openings.

Responsibilities of a Core Network Engineer:

  • Responsible for communicating with cross-functional Software development Teams to create processes related to automation to reduce manual work or to build software products and automation tools related to Core Network Engineering.
  • Responsible for coordinating with cross-functional teams i.e. RF, Microwave, Backhaul and datacom to design, develop, and troubleshoot communication systems and automated tools that meet performance, coverage, and compliance standards.
  • Design, delivery and maintenance of telecommunication telco-cloud and packet core network solutions based on 3GPP and ETSI standards.
  • Design and implementation of end-to-end telco-cloud Core solution based on Kubernetes, SDN and OpenStack.
  • Design and deliver 4G/5G solutions including 5G NSA, 5G SA, VoLte, VoWifi, VoNR for multiple CSPs.
  • Design and implement 5G NSA, 5G SA, and EPC core networks.
  • Integrate and configure new AMF, SMF, PCRF, MME, SGW, and PGW, and perform traffic migration from legacy to virtualized core nodes.
  • Troubleshoot 4G/5G network core interfaces.
  • Handle cloud infrastructure platform delivery including deployment of network, computing and storage resources and executing VNF/CNF based capacity expansions.
  • Perform firmware/software upgrades and resolve software defects and network vulnerabilities.
  • Conduct acceptance tests for NFVI, NFVO, VNFM and VNFs/CNFs nodes to ensure the network is ready for commercial use.
  • Validate and execute MOPs and network activities.
  • Test new 4G/5G core features and conduct end-to-end call flow tests and various 4G/5G scenarios to evaluate functional performance and failover capabilities.
  • Conduct regression and stress/load testing, as well as CI/CD pipeline integration, to support continuous testing, network function stability, performance, and system behavior validation.
  • Develop and validate Telco Cloud Platform, Open RAN/O-RAN, LTE/4G, and 5G deployments; OSS/BSS systems; and platform models such as NFV and distributed/federated edge platforms (e.g., ETSI MEC).

Qualifications for Core Network Engineer Role:

  • Bachelor’s degree or equivalent in Electrical Engineering or a related field.
  • 5 years of experience in the job or related positions.
  • Must have 1 year of experience utilizing tools and protocols such as: Wireshark, Y.1731, RTP, TCP/IP, IXIA – Traffic Generator, NSP, 5620 SAM.
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