Himanshu Tyagi

• Working on mentioned tools Git, Github, Azure DevOps, Jenkins, Docker, Dockerfile, Kubernetes, Helm, Nexus)
• Good hands-on experience on containerization platforms like docker container orchestration tools like kubernetes.
• Maintained Git Workflows for version control (Source Code Management).
• Diagnosing and rectifying the issues coming in various environment like dev, stage and production.
• Developed and maintained automated CI/CD pipelines for code deployment using Jenkins and Git.
• Responsible for Service Change and Deployment of JIO CloudXP (Hybrid Cloud Management Portal) portal in K8 cluster through Jenkins Pipeline or Manually.
• Having Experience in leading, Implementation & Execution of DR and Staging Setup from scratch.
• Having good understanding of AWS services.
• Responsible for taking necessary action on Pull Request from Dev.
• Responsible for creating/modification of Helm charts.

· Good hands on experience on Public cloud (AWS) and Private cloud (Openstack- NOKIA CBIS)

• Responsible for L3/L4 production issues of Nokia Cloud Band Infrastructure Software (Openstack) and Nokia Container System (Kubernetes).
• Responsible for Debugging and Troubleshooting of Ceph related Issues.
• Responsible for Debugging and Troubleshooting of OVS, DPDK and SRIOV related Issue.
• Responsible for Debugging and Troubleshooting of CPU Pinning, SMP, NUMA and Huge Pages related issues.
• Responsible of VNFM and NFVO Deployment and Support.
• Responsible of VNF and CNF Deployment.
• Responsible for Open stack and Kubernetes Cluster.
• Responsible for POD and Container Deployment.
• Responsible for managing Kubernetes Services.
• Having good Understanding of Openstack services (Nova, heat, keystone, neutron).
• Responsible for performing openstack activities in maintenance window.
• Responsible for managing K8 cluster (pods, containers, secrets, PV/PVCs, Certificates, GWs, VS, SVCs ) in staging and Production environment.,
• Responsible for managing microservices and smooth release and changes in Staging and production environment.
• Responsible for Source code Management.

• · Responsible for Deployment of Openstack/Mavenir Webscale Platform (CaaS and PaaS).
• Responsible for Deployment and Integration of New IMS/UCC products in NFV environments and Container’s environments.
• Responsible of preparing Design Docs, MOPs and Other operational Guides.
• Responsible for deploying and managing Prometheus and Analytics (XA).
• Responsible for Deploying CNF and VNF.
• Responsible for deploying Pods and Containers.
• Responsible for preparing helm charts.
• Responsible for looking JIRA tickets raised by Operation team related to NFV nodes (iVNFs, VNFM, NFVO)
• Responsible for Deployments of IMS/UCC Applications on open stack in NFV environment. (VNFM, CMS, TAS, mUCCAS , iUCCAS WSG, SDNS)
• Responsible for preparing Heat Templates and Descriptors (NSD, LVND, VLD, VNFD, LCMD).
• Good Knowledge of Open stack and Virtualization.
• · Knowledge of SIP protocol.

· O&M and Optimization of Core IMS network including SBC, TAS, CFX.

· End-to-end knowledge and co-ordination of IMS Network, SBC such as handling of call related issue of IMS at SBC level and co-ordination with Hub location for analysis at TAS/CFX.

· Operations & Maintenance of Core IMS Network including troubleshooting, monitoring, tracing on interfaces such as Wireshark or internal system traces and logs.

• · Coordination with Planning/ Customer/Care/ Solutions etc.
• Plan & Implement Software Upgrade in network.
• Support in implementation of new features in network.
• Analyzing/optimizing network KPI’s.
• Wireshark trace capturing and analysis.
• Exposure to VOLTE/IMS network with call flow and protocols used.
• Comfortable with Redundancy testing and disaster handling including hardware change management handling.
• Escalation/Emergency Handling.
• Co-ordination with Care, Planning and Customer, knowledge of raising trouble ticket process, emergency handling mechanism, regular updates to customers.

• Responsible for Planning and Optimization of NOKIA Core Nodes.
• Responsible for Traffic Optimization and migration.
• Responsible for B-Number Routing and analysis.
• SPOC from Core end for IMS deployment project.
• Cause code Analysis & ALARM Troubleshooting.
• Digit Routing & creation at MSS end.
• Traces Analysis (OBSFAILA, OBSNUMBA, GSMME1PR).
• SIP, SS7, Sigtran, TCP/IP.
• Analyzing Cause codes pegging with IMS network.

• Provide L2 Service Assurance of Audioconferencing to 64 customers.

• Analyze SIP call flows to resolve customer issues.

• Providing services like SNS (Single number solution), LNS (Local number service), DTFS (Direct toll-free service) and Meeting Exchange which is used to connect customers to a bridge for enterprise services.

• Provide support (administration and troubleshooting) for Audio Conference Platform which includes Avaya Session Manager, Avaya Communication Manager, Audio codes Media Gateways.

• Analyze the CDRs at VN-metric and RT-DAS tools.