5G core network engineer

Telecommunications Programming Dallas, Texas, United States

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Summary

Worked on AON pipelines for PCF nodes for AT&T client and Microsoft Azure
Worked on PCF and UDM nodes for HP vendor and amdocs partnership
Experience with one or more cloud services: OpenStack, Azure Operator Nexus (AON)
Openstack 17.1.1 and RHEL 8.4 upgradations in MPSL or environment labs in AT&T.Ansible commands to execute the upgradation tasks
HPE 5G AUSF and UDM Network Functions are containerized applications deployed on Red Hat OpenShift Container Platform (OCP).Worked on Oracle DSR projects and Nokia products..Openshift cluster observation and support between tier 2 and tier 3.kibana,grafana dashboards for health checkups.
Worked on Nokia CFX 5000 IMS core testing and call flows using wiresharkNokia CMM product ATP execution for EPC/LTE call flows E2E execution.
Worked on EPC / VOLTE/VOWIFI/IMS E2E call flows and Hotfixes for Nodes: PCRF,TAS,OCS
HPE product UDM and UDS, where UDS runs also OpenShift Ceph Storage Services.Pods deployment.
Grafana Cluster and Kibana Dashboards for network observability.
Worked on Oracle Communications Cloud Native Core, PCF System Architecture Oracle Communications Policy Design. Platform Sanity reports for execution (Pre & Post-Sanities) on Nodes endpoints (PCF and vDSR). Networking, Virtualisation and Containerization using MOPs
Co-ordinating teams during outages and ensure the MOP execution in pre-prod environment before it goes in to production.
Install and configure Glance, Images, Set up Vagrants to configure target and deployment of VMs
Scripts to run Kolla-Ansible deployments
Knowledge on Packstack and OpenShift
Creating and instantiating VNFs,Used Swagger UI,VNFM REST API-Postman,Ansible,Openshift oc CLI commands
Dockers,Kubernetes,K8s,Openstack, Zuul, Helm charts
Experience Bash/Linux environment
Python Automation scripts on Selenium BDD framework Platform Skills:
DevOps experience: DevOps, Ability to contribute to Continuous Integration and Delivery (CI/CD) pipelines like Git Hub,GitLab, Jenkins. Installing the core components on virtual and kubernetes environments. Experience with one or more cloud services: OpenStack Zuul,CentOS,Horizon dashboard
Experience with: Yaml, JSON, Swagger UI,Python,Selenium BDD framework
Ability to contribute to Continuous Integration and Delivery (CI/CD) tooling like GitLab, Jenkins
Automation Testing: Automating Packet Core features releases using Selenium Automation tool,Pytest framework,Python scripting. Automating the call flow via AAT framework.
Review on technical documentation as MOPs and arrange the calls with developers, platform owners and field teams.
Testing Skills:
Knowledge of telecommunication protocols 3GPP LTE, LTE-Advanced, 5G standards awareness
Having Specialized knowledge on VOLTE/IMS calls flow and end to end testing.
Experience in Manual testing, Automation testing, Functional testing, Regression testing, User Acceptance Testing(UAT), Feature Testing and Database testing.
Design and implement network automation and administration features.
Raised the defects in HP ALM and resolve them with associated root cause analysis
Tools:
Extensive knowledge/experience with various protocols SIP, GTPv2, Diameter, LDAP protocol & AVPs
Tools such as Wireshark, Tektronix, Netscope,XML,MS-VISIO, Agilent/Keysight/Anritsu,R&S.
Excellent logs analysis and debug skills using tool like Wireshark, debug and Mlog.
Good understanding of LTE/EPC/IMS/SIP/VOIP/5G Architecture and call flows between all the NFs.