Varun Jain

About Varun Jain

Hands-on experience on the deployment and integration of vIMS nodes’ (vSBG, vMTAS, vCSCF, vBGF and vMRF). • Good understanding of Ericsson CEE deployment, image customization,management, VNF deployment, under-cloud, over-cloud deployment. • In depth knowledge of IMS/VoLTE/ICS/SRVCC Call Flows and Network Architecture (IMS and MSS), protocols & functioning of various nodes. • Good Understanding of Diameter, SIP, ISUP, BICC, MEGACO, CAP protocol. • Experience in troubleshooting end to end IMS call flows (IMS to IMS, IMS-CS break-in/out call, CSFB, SRVCC, Volte call scenarios), SMSoSGsAP, GSM MNP call. • In depth experience on VNF deployment over CEE. • Sound knowledge on Git repository including (Git push, pull, clone, commit). • Knowledge on setup of Swarm mode cluster with manager and worker nodes. • Creation of image via docker file, tagging an image, pushing and pulling the image from docker registry, image backup. • Knowledge on docker network, creating containers and micro-services, publishing port, running docker service templates, mounting volumes. • Troubleshooting of failed container logs, installation issues. • Sound knowledge on Ansible, creating playbooks, static inventory, core modules, complex loop.

Experience

1. Customer Delivery Manager

   Mavenir

   Nov 2021 — Present

   In depth knowledge of cloud native environment, working with Kubernetes and helm based deployment- Hands on experience on deployment and integration of PACO nodes (AMF, SMF, UPF, NSSF) and 5G nodes (UDSF, BSF, AUSF, EPDG, N3IWF) on robin K8 platform through CI/CD- End to end design, solution expertise on 5G core products- Acceptance and end to end testing of 5G Core nodes.

Education

• Bal Bhavan Public School

  Bachelor of Technology (B.Tech.), Electrical, Electronics and Communications Engineering

  1991 — 2007