Brian Riviere

L2/L3 IT Consultant — Infrastructure & Security

Mixvoip SA

• Owns complex customer environments and internal infrastructure initiatives across Microsoft identity, endpoint management, security operations, network/firewall architecture, virtualization, backup, monitoring and automation.
• Managed strategic customer environment with annual audits, pentest remediation, infrastructure operations, application/OS security patching and migration into a VMware datacenter.
• Implemented Microsoft security controls: Conditional Access, Global Secure Access for ZTNA, Just-in-Time privileges, Intune, Defender, automatic device enrollment, compliance/security policies and app deployment.
• Operated Defender for Cloud Apps and Vulnerability Management, Azure Update Manager, Endpoint Central and ServiceDesk Plus; coordinated remediation with SOC and CISO stakeholders.
• Migrated large multi-site network infrastructure to centralized management with Sophos firewalls; managed Fortinet, centralized switching and WAF.
• Designed and deployed Azure infrastructure with tunnels to customer sites, Azure Virtual Desktop environments and automated deployments using Bicep and Terraform.
• Maintained Windows infrastructure including Active Directory, NPS and PKI; performed infrastructure analysis and post-compromise signal review.
• Delivered emergency restores in Mixvoip datacenters and maintained Veeam Cloud Connect services.
• Built and maintained Wazuh SIEM, Zabbix servers, proxy networks and centralized network monitoring.
• Migrated internal virtualization infrastructure from VMware to Proxmox.
• Developed custom GLPI modules for Entra ID application traceability/audit, user management, license synchronization, contract management and AI-assisted ticket drafting.
• Deployed full customer workstation fleet through Intune Autopilot with Entra ID joined devices.