Freelancer profile translated to English.
Back to original languageAbout Lionel
Are you an SME or a growing startup and your IT is becoming difficult to manage (lack of structure, security issues, poorly configured tools)?
I help youbuild a reliable, secure IT environment tailored to your business, so that your information system becomes asolid support rather than a hindrance.
I regularly intervene afterdisorganized environmentsorpoorly executed migrations,to restorestabilityandvisibility.
Withover 10 years of experience, I support companies onIT infrastructure management,IT supportandsystem administrationtopics, with a pragmatic and results-oriented approach.
I assist my clients with:
- migration toMicrosoft 365orGoogle Workspace, without business interruption
- identity and access management(Microsoft Entra ID, Active Directory, MFA)
- environment security(cybersecurity, endpoints, compliance)
- workstation and fleet management(MDM: Intune, Jamf, IRU)
- network infrastructure design and optimization(Cisco Meraki, Ubiquiti UniFi, VPN, firewall, WiFi)
- daily IT infrastructure management and IT support
I work on environments withseveral tens to several hundred users, with strong challenges inservice continuity, security, and performance.
What sets me apart: ahands-on approach, solutionsadapted to your context, and a commitment to buildingsimple, reliable, and sustainable IT.
I assist with bothone-off projectsandrecurring missionsas anoutsourced IT referent.
If you are looking for someone reliable to structure, secure, or evolve your IT, you can contact me.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km), Lille (up to 50km)
Experience
- SLS NetworkIT Consultant - Founder of SLS NetworkDecember 2023 - Today (2 years and 8 months)Paris, France📍 Freelance / Remote / On-siteIntervention as an IT expert with VSEs, SMEs, local authorities, and growing organizations.https://sls.networkMain projects carried out:
- Deployment, security, and management of workstation fleets (Windows & macOS) with MDM/RMM solutions: Microsoft Intune, Kandji, Atera, Endpoint Central...
- Advanced Google Workspace administration: account management, automation, security, migration, GDPR / ISO 27001 compliance
- Network infrastructure design and security: implementation of VPN, VLAN, WiFi, firewalls with Cisco Meraki, Fortinet, Ubiquiti
- Optimization of business networks to improve performance, reliability, and network coverage (LAN/WiFi)
- Implementation of proactive IT monitoring: surveillance, alerting, automation of maintenance tasks to ensure a stable environment
- Integration and optimization of Microsoft 365 and Google Workspace in hybrid environments (collaboration, email, security, mobility)
- Outsourced IT support: ticket management, preventive and corrective maintenance, support for internal teams
- Strengthening cybersecurity: access management, MFA, security policies, endpoint and network security
- MEDADOMIT ManagerApril 2021 - November 2024 (3 years and 8 months)Paris, FranceAs the first IT Manager at Medadom, I was tasked with building the IT infrastructure and managing technical operations from scratch in a rapidly expanding environment. As a newly created position, everything had to be put in place, from structuring access to securing systems, including user support and network infrastructure deployment.Access Management and Cybersecurity
- Implementation and security of access to SaaS tools
- Administration of Google Workspace and Azure AD (Entra ID) with deployment of IT and security best practices
- Monitoring of user workstations via MDM and EDR, with Intune for Windows and Jamf for Mac and iPhone
Infrastructure and Network- Complete orchestration of the headquarters move (7 floors), including the installation and configuration of fiber optics, firewalls, switches, and Cisco Meraki WiFi access points
- Active participation in the opening and expansion of Mediksante health centers across France, ensuring connectivity (fiber links, Meraki routers, secure WiFi)
IT Fleet and Teleconsultation Management- Deployment and administration of a centralized management tool for over 5000 teleconsultation booths, via Endpoint Central Management, ensuring machine security, strict access policy application, and update deployment.
IT Support & Cybersecurity Awareness- Management of IT support for over 250 employees across the country, ensuring responsive and efficient service
- Design and delivery of a cybersecurity threat awareness program, including phishing simulations and interactive training on Slack, to strengthen the company's security posture.
- FrichtiIT ManagerOctober 2018 - April 2021 (2 years and 6 months)Paris, FranceHired at Frichti as the first IT Manager, I was responsible for building the IT infrastructure from scratch in a rapidly growing environment. My role was both operational and strategic, focusing on IT support, network infrastructure, and equipment industrialization.IT Support & Fleet Management
- Implementation and management of IT support for over 350 employees, assisting with SaaS tools and process optimization
- Administration of Google Workspace and management of the Mac fleet via Jamf, ensuring a fluid and secure work environment.
Logistics Hub Deployment- Support for Frichti's national expansion by overseeing the installation and configuration of networks in each logistics hub.
- Management of internet connectivity, firewalls, switches, and Meraki WiFi access points to ensure a reliable and high-performance network at these new sites.
Automation & Raspberry Pi Management- Deployment and management of a custom solution for online order management: preparation, installation, and administration of Raspberry Pis in each hub
- Automation of updates and daily maintenance via Salt, optimizing the large-scale management of these critical devices.
IT Structuring & Industrialization- Implementation of robust and scalable processes to support the company's rapid growth, with a scalable and automated approach to IT management.
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Education
- RNCP Level 7 (Master's Degree) in Systems & Network Engineering, Management / Head of Systems, Networks, and LAN / WANF2I2016RNCP De Niveau 7 (BAC +5) en Ingénierie Système & Réseaux, Gestion / responsable des systèmes, réseaux et LAN / WAN
- DEES Information Systems Security Networks, Systems, Networks, and Security EngineeringIRIS-ETS2014DEES Sécurite Système Réseaux Informatique, Ingénierie des systèmes, réseaux et sécurité