Jimmy C

Led the migration of a production VMware infrastructure to Vates (XCP-ng/Xen) Designed, deployed, and administered production and development Kubernetes (RKE) clusters with Rancher, including lifecycle management and upgrades. Designed and implemented Disaster Recovery and Business Continuity (DR/BC) strategies for virtualized infrastructures. Built a comprehensive Kubernetes backup solution with Commvault, covering etcd, cluster resources, and persistent volumes, while implementing rolling node upgrades. Deployed and maintained highly available Pacemaker/Corosync clusters for critical services, including NFS and business applications. Migrated 25 MySQL databases to a MariaDB Galera multi-master cluster with synchronous replication. Managed the Red Hat Enterprise Linux lifecycle, including fleet-wide migrations from RHEL 7 to RHEL 8 and RHEL 9. Automated virtual machine patching and configuration management with Ansible and Red Hat Satellite. Designed and implemented CI/CD pipelines using GitLab CI/CD and GitLab Container Registry. Automated operational workflows and self-service tasks with Rundeck. Migrated legacy FTP services to secure SFTP and hardened Linux servers with Fail2ban. Administered NetApp storage infrastructure, including NFS/CIFS provisioning, quotas, and snapshot management. Deployed and administered Icinga monitoring, implementing health checks and alerting for critical infrastructure and services. Served as the Linux referent for the Cegid ERP and Talend ETL platforms. Provided Level 3 production support and ensured day-to-day operational maintenance (MCO) across the infrastructure stack. Performed on-site datacenter operations at the PA2 facility (Saint-Denis), including hardware installation, maintenance, and troubleshooting.

Migrated multiple CentOS 8 servers to RHEL 8 using Convert2RHEL and Red Hat Satellite. Installed, configured, and administered Windows Server and Linux (RHEL, AlmaLinux, Debian) environments for multiple customers. Administered Microsoft Azure, including Microsoft Entra ID, Resource Groups, and virtual machines. Managed backup infrastructure with Veeam and HPE Nimble storage across multi-tenant environments. Administered Microsoft Exchange messaging infrastructure and SFTP servers. Resolved Control-M scheduling incidents impacting business-critical batch processing. Monitored server infrastructure and mission-critical services to ensure availability and performance. Provided Level 2 and Level 3 operational support (MCO) for Windows and Linux server environments. Installed and configured network infrastructure, including switches and firewalls.

Administered and deployed Windows endpoints using Microsoft Intune, leveraging PowerShell to automate provisioning and device management. Installed, configured, and maintained Cisco and Aruba network infrastructure across multiple sites. Administered Microsoft 365, Active Directory, and Exchange backup solutions. Managed the deployment, maintenance, and lifecycle of end-user devices and IT peripherals. Provided end-user and VIP support, troubleshooting hardware, software, and infrastructure issues. Produced compliance and asset reports while monitoring business-critical infrastructure and equipment.