Aditya Kumar Chauhan

Professional Experience

Current Project -Largest Global Healthcare Provider (Delivery and operation Support)

• Complete Deployment of VMWare vCloud Foundation from scratch.
• Involved in Capacity Planning of VCenter Resource Pool.
• VMware environment patching including Firmware using Dell OME and HP Oneview, cisco UCS.
• Dell open Manage Firmware Upgrades & ESXi Patching and Updating using Baselines/PowerCLi commands.
• Updating of Multiple Application and Component like vCenter, NSX –T , UCS Manger , Dell Unity , Openmanger, OA , VC , etc
• VMware NSX -T integration & Deployment and upgrade.
• Planning and responsible of execution of DR Test failover from Zerto during DR activity.
• Assist in planning, forecasting, implementation, and identification of resource requirements for virtualization and storage systems of high complexity
• Responsible for ensuring that virtualization and storage infrastructure has been designed and installed to meet customer requirements on contracted solutions
• Solves virtualization and storage problems and incidents that occur within the infrastructure.
• Evaluates virtualization and storage performance to ensure that there are no delays or down times.
• Work independently on complex issues to ensure that the infrastructure stays operational and up to Cloud Standards
• Assists in evaluation of new products, performs infrastructure problem resolution and assists in development and documentation of technical standards and interface applications.
• Participate in creation of work instructions and knowledge base articles, update support documentation through evergreen process
• Maintain best practices, knowledge articles, system diagrams, problem/resolution articles for use as reference and solving future issues
• Managing and administering VMware vSphere HCI and Legacy infrastructure.
• Managing and troubleshooting VMWare VSAN environment
• Deployed and managed Tanzu Kubernetes Grid (TKG) clusters across on-premises vSphere
• Integrated Tanzu with vSphere, NSX-T, Harbor, and vRealize Suite for a complete private cloud-native stack.
• Built and maintained Helm charts and Kubernetes YAML manifests for application deployment and lifecycle management.
• Deployed and managed vSphere with Tanzu to enable Kubernetes workloads natively on vSphere clusters.
• Enabled Workload Management on vSphere clusters to configure Supervisor Cluster for Kubernetes operations.
• Configured and maintained NSX-T or vSphere Distributed Switch (vDS) for Tanzu networking, including Tier-1/Tier-0 gateways, Load Balancers, and Namespaces.
• Created and managed vSphere Namespaces, assigned resource limits, and integrated with VMware Harbor registry.
• Deployed and upgraded Tanzu Kubernetes Grid (TKG) Guest Clusters via vSphere UI and CLI.
• Integrated vSphere with Tanzu into enterprise authentication (LDAP/AD) and enforced RBAC at namespace level.
• Performed monitoring and troubleshooting of Tanzu Kubernetes clusters using vCenter, kubectl, and vRealize Operations Manager.
• Automated Tanzu operations using PowerCLI, kubectl-vsphere, and REST APIs.
• Worked closely with DevOps/Application teams to provision and manage Kubernetes resources on Supervisor Clusters.
• Configured and managed persistent storage for Tanzu workloads using vSphere CNS (Cloud Native Storage) and Storage Policies.
• Ensured security and compliance by managing PodSecurityPolicies, VM Service configurations, and namespace isolation.
• Deployed and managed vSphere with Tanzu to enable Kubernetes workloads natively on vSphere clusters.
• Planned and executed VMware HCX migrations for large-scale workloads across on-prem and cloud environments (VMware Cloud on AWS / Azure).
• Installed, configured, and managed HCX components: HCX Manager, Interconnect, Network Extension appliances.
• Performed bulk live migrations (vMotion), replication-assisted vMotion (RAV), and cold migrations using HCX.
• Established L2 network extensions via HCX to maintain IP continuity during migrations.
• Integrated HCX with vCenter, NSX-T/V, and cloud vCenter for hybrid connectivity.
• Troubleshot HCX migration failures using HCX logs, dashboards, and network diagnostic tools.
• Migrated VMs with minimal downtime, ensuring data consistency, app availability, and rollback procedures.
• Configured service mesh, compute profiles, and network profiles for HCX connectivity between source and destination.
• Conducted pre-migration assessments, bandwidth planning, and created detailed runbooks and rollback plans.
• Monitored and reported on HCX migration progress using HCX dashboard and reports.
• Worked on HCX upgrades and health checks to ensure platform stability before migration activities.

Project -4 : 5G Telco Lab Administrator

• Experience on deployment and maintenance of TCP-RAN Architecture using VMware TCA,.
• Creating a TKG cluster for telco CNF deployment.
• Monitoring and managing infra in Bangalore and Rome 5g telco lab and
• Help the CNAS team run their automation scripts to deploy NF
• VNF and CNF onboarding on VMware TCA cloud environment.
• Regular engagement with CNF team to understand their infra requirement for their CNF onboarding in TCA
• Upgradation to TCA stack 1.5 to 3.0

Project -3: LGI infra-support

• Coordinate with the architect team regarding their infra requirements on every DevOps cycle.
• Provision and decommission the VMs on their requirement request.
• Testing the infra deployment by Jenkins pipeline according to the pre-defined use cases.
• VM deployment, Define network and reservation polices through VRA
• Upgrading and patching VRA nodes through LCM
• Upgrading and patching LCM nodes of infrastructure

Project -2: European electric utility company(Aws/Azure VNet/VPC Connectivity Migration to Aviatrix)

• Involving in Staffing and training activities of the Migration Project
• Experience of Successfully completing 60+ aws and 670+azure VNet/VPC Connectivity Migration to multi-cloud network solution ( Aviatrix)
• Troubleshooting and fixing the issues that were seen post-migration.
• Define the migration strategy and planning.
• Provide timely status reporting to the Project Manager and customer.
• Preparing documents and organizing KT sessions with the operation team for a smooth transition of the project
• Preparing a change request and presenting the same in the CAB meeting.
• Managed end-to-end complex AWS and AZURE VNet/VPC Connectivity Migration and involved with the application team in their connectivity testing.
• Preparing and executing migration implementation and rollback plan.

Project -1: Large Global Telecom Provider (Telco Cloud NFV Bundle Upgrade)

• Involved in Capacity Planning of VCenter Resource Pool.
• Deploying the OpenStack components on multimode with a High availability environment to create software-defined networking tenants.
• Software Upgradation of Multiple Applications and Components like vCenter, NSX -V, UCS Manager, Dell Unity, Openmanger, OA, VC, etc
• VNF onboarding on cloud environment using CBAM & vCLOUD Director
• Daily analysis of telco environment KPI report & and take necessary action accordingly
• Ensured compliance and mitigated the risk of physical Infra via Hardening and Firmware Upgrades.
• Managing Cisco UCS Manager /Dell PowerEdge Series & HP One View alerts in a unified common Control plane Environment.

• Experienced in deploying large cloud environment with more than 150 compute nodes in each cloud.
• Experience in managing multiple private clouds for enterprises on Bare metal, Virtual Machines and Containers to address different project needs.
• Experience in Openstack components Neutron, Nova, Cinder, Horizon, Ceilometer, Heat, Glance and Swift.
• Experience in verifying Openstack environment in Docker Containers for Sanity tests before upgrading production environment.
• Experienced with managing Kubernetes cluster with more than 150 worker nodes (Large environment for development project)
• Experience in DevOps process using Jenkins, Ansible for On Demand Openstack deployment.
• Experience in creating/managing multiple tenants in a cloud,
• Creating quotas, triggering alarms when certain thresholds are reached, creating network and creating/customizing heat templates.
• Expertise in troubleshooting Openstack issues from fault detection, fault isolation and resolving many key issues.
• Experienced in supporting large - scale multi-tenant infrastructure level services.
• Experience in supporting private cloud environments housing multiple tenants in multiple networks.
• Doing scale-in & scale out the Openstack environment based on customer requirements.
• Excellent interpersonal skills, effective troubleshooting, and customer handling skills.
• Understanding and preparing the manifest files such as YAML and JSON for cloud & VNF/VMs deployment.
• Having experience with Continuous deployment and continuous integration (CI/CD) using GIT, GITHUB, docker hub, & Jenkins
• Creating the solution document for the new cloud deployment by having network connectivity layout, storage configuration details & cloud rack server details.
• Knowledge and working experience in Kubernetes and Docker environment.
• Having knowledge in VNF, SDN, MANO, VNFO, VNFM, VNFD.
• Deployment and troubleshooting of VMs in the Openstack & VMware environment.
• Digging from network level in Openstack OVS & neutron agent, VXLAN & VLAN, Linux bridges.

• Handling responsibilities of CTL in his absence.
• Diagnostics on interfaces to locate problems in network elements and/or plug-in units.
• Support O&M field Engineer for day-to-day O&M activity. (RNC MONITORING, CHANNEL ELEMENT UTILIZATION CHECKING, NODE B BLOCK/DE BLOCK, CALL CHECKING ON RNC MODULE).
• Cluster Change Activity of NodeB.
• Alarm rectification of WBTS.
• Technical support for any issues regarding 3G network.
• Customer complaints investigation and problem identification.
• OSS support by DX 200 Platform usage for the operation. Working on Citrix, Reflection, and TNMS.
• EDAP expansions for extended GPRS capacity as per planning team.
• BTS S/W up gradation at BSC level.
• Taking care of HW & SW compatibility while upgrading BTS SW.
• Augmentation of Aters as per CGR utilization.
• Coordination with GPRS/EDGE team related to various Issues.
• Alarm monitoring and analysis for BSC operation and maintenance.
• Supporting the BSS in the field for their concern problem.
• Routine and preventive maintenance of BSC.
• Removing the false alarm & blocking in the network.
• Converting METRO sites into ULTRA BTS Sites.
• Troubleshooting of faulty hardware and plug-in units i.e., MCMU, BCSU etc.
• Modifying the TRXs, SECTORs & BCFs.
• BTS parameters optimization to improve network quality.
• Making the trail for the site in TEJAS Server.
• Alarm monitoring and on-line support to Field Engineers for Fault clearance.
• Configuration changes (Update of the Traffic Plan of BTS site, Channel configurations etc).
• Maintaining the 254 sites including ULTRA (INDOOR & OUTDOOR), METRO, FLEXI (INDOOR & OUTDOOR) and 6 BSC DX200 3i in Muzaffarpur Clusters (Bihar)
• Operation and maintenance of NOKIA BTS sites.
• Preventive maintenance of BSC all BTS sites.
• Rectify the faults in BTS and Microwave as soon as possible.