Gaëtan Van Bever

→ Provided Level 1-2 technical support for Windows infrastructure, including Active Directory administration, authentication troubleshooting, and security token deployment. → Managed Active Directory objects: created/updated security groups, user accounts, and Group Policy Objects (GPOs) to support organisational access requirements. → Diagnosed and resolved authentication issues (smart tokens, certificates, VPN access) for Ministry users, coordinating escalations with service studies teams. → Deployed security tokens, installed user certificates, and configured Windows profiles to ensure secure access to justice systems. → Maintained IT asset inventory and participated in infrastructure monitoring and operational oversight for 500+ end users. Tools: Active Directory, Windows Server (2012R2, 2016), GLPI, EasyVista, Remote Desktop, authentication tools

→ Built a daily PowerShell automation script to clean 30,000+ Active Directory objects, eliminating manual overhead and ensuring data hygiene across the organization. → Automated AD cleanup processes (stale accounts, orphaned groups, permission audits), reducing manual intervention by 80% and improving security posture. → Designed reporting dashboards for IT managers, providing real-time visibility into AD health, user lifecycle status, and compliance metrics. → Collaborated with Identity & Access team on tool replacement projects, translating business requirements into technical PowerShell solutions. → Authored comprehensive technical documentation for scripts, enabling knowledge transfer and maintainability across teams. → Performed ad-hoc scripting for mass updates, rollbacks, and data extractions, supporting incident response and change management processes. 🔧 Tools: PowerShell ISE, Active Directory, Splunk, Confluence, JIRA, Windows Server

→ Provided Level 3 IAM support for France's 2nd-largest banking group, managing authentication and access control for critical financial systems. → Investigated and resolved complex access control incidents, including VPN access issues, role-based permissions conflicts, and directory synchronisation errors. → Developed PowerShell automation for IAM workflows: access requests, privilege reviews, and deprovisioning. →Improved ticket resolution time by 30% through process optimization and streamlined escalation workflows. → Built operational dashboards and test cases to monitor IAM system health, user provisioning metrics, and compliance status. → Coordinated with security and infrastructure teams to implement least-privilege access controls and audit identity lifecycle processes. → Documented IAM procedures and troubleshooting guides, ensuring knowledge continuity for L1/L2 support teams. 🔧Tools: IAM platforms, Active Directory, PowerShell, VPN systems, ServiceNow, audit/compliance tools🔧

→ Provided Level 2 Active Directory support for Thales Alenia Space, managing user accounts, security groups, and Group Policy Objects (GPOs) for 5,000+ users. → Automated user onboarding and offboarding workflows using PowerShell, reducing average provisioning time from 2 hours to 15 minutes per user. → Troubleshot complex authentication issues including certificate management, smart tokens, VPN access, and multi-factor authentication (MFA). → Administered GPOs for security hardening, software deployment, and compliance enforcement across Windows 7/10 enterprise environment. → Collaborated with service desk and application teams to resolve escalated AD/authentication incidents, maintaining 95%+ SLA compliance. → Created PowerShell scripts for bulk user modifications, group membership management, and automated reporting to stakeholders. 🔧Tools: Active Directory, PowerShell, Group Policy, ServiceNow, Remote Desktop, certificate/token management tools