Freelancer profile translated to English.
Back to original languageAbout Guillaume
Expert in Microsoft technologies, I master multi-OS environment management, Intune, Azure, AAD, MS365 solutions administration, and process automation. Specialized in infrastructure security and optimization, I deploy SaaS solutions and manage hybrid cloud environments. MS-102 and MS-102 certified.
French
Native or bilingual
English
Conversational
Spanish
Basic
Can work on-site
Lyon (up to 50km), Paris (up to 50km), Grenoble (up to 50km)
Experience
- SNCFMicrosoft Intune ArchitectTRANSPORTATIONSeptember 2025 - Today (9 months)Lyon, FranceMicrosoft Intune expert intervening within the Park Management Engineering team, responsible for approximately 130,000 Windows workstations (120,000 SCCM workstations currently migrating to Intune), 7,000 servers, 180,000 phones (MobileIron to Intune migration in progress), and 1,000 macOS devices (JAMF to Intune migration study).Main missions:- Opportunity studies, roadmap definition, and technical evolutions.- Offer design, cost estimation, engineering with stakeholders.- Level 3 support and coordination with integration (N2).- Collaboration with Identity teams (AD / Entra ID).
- Cyllene
On Malt
Intune & Entra ID ArchitectDIGITAL AND ITSeptember 2025 - October 2025 (1 month)Paris, FranceIntervention for an industrial group (~4,000 Windows workstations) managed with Microsoft Intune.Key Achievements- Autopilot (Microsoft Entra hybrid join) with sequencing and automatic workstation renaming.
- Advanced troubleshooting of Autopilot scenarios and deployment pipeline optimization.
- Packaging and deployment of specific Windows language packs.
- Configuration of BIOS password integrated into the Autopilot flow (hardening).
- Audit & advice: GPO integration/rationalization, configuration profiles, Wi-Fi via certificates (EAP-TLS).
- App registrations and PowerShell automations (recurring tasks).
- Training IT teams on Microsoft Intune
- AgicapIT ManagerSOFTWARE PUBLISHINGJanuary 2022 - August 2025 (3 years and 7 months)Lyon, France
Position Context:
Agicap is a fast-growing scale-up. When I joined, the company had 390 employees across 4 European countries. Today, it has 600 employees in 6 European countries. I was hired to create the IT department from scratch and build a structured IT team to meet the company's growing needs.Main Missions:
IT Team Creation and Management:- Transitioned from a non-existent team to 5 employees, recruiting profiles ranging from technical support to system administrator.
- Managed recruitment, interviews, and internal training for the team.
IT Systems Implementation and Management:- Implemented a ticketing system to centralize and track user requests.
- Deployed Microsoft Intune as an MDM solution to manage a fleet of 1000 devices (Windows, macOS, Android, iOS).
- Automated IT management with Terraform infrastructure-as-code and PowerShell scripting.
- Implemented Azure Automation with PowerShell and Python to optimize IT tasks.
Key Technical Projects:- Migration of Windows 10 workstations to Windows 11 with Windows Hello integration and implementation of LAPS in a 100% Entra ID environment.
- Implementation of CIS (Center for Internet Security) security standards on Windows 11 (408 measures), macOS, iOS, Android, and Microsoft 365.
- Deployment of SentinelOne EDR solution to enhance endpoint security.
- Identity management via Okta (IDP) and Azure subscription optimization.
Infrastructure and Budget:- Managed an annual budget of approximately €2M for hardware, software, and services.
- Set up new sites, including network infrastructure setup, mobile line management, and tracking of suppliers and contracts (including IT service providers).
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Education
- Master's Degree in Computer EngineeringSUPINFO - The International Institute of Information Technology2018Cycle Bac +5, Ingénierie informatique
- Higher National Diploma in Computer Science and Networks for Industry and Technical ServicesLycée du Grésivaudan Meylan2015Brevet de Technicien Supérieur, Informatique et réseaux pour l'industrie et les services techniques
Certifications
- Microsoft 365 Certified: Administrator ExpertMicrosoft2025
- Microsoft 365 Certified: Endpoint Administrator AssociateMicrosoft2023