Freelancer profile translated to English.
Back to original languageAbout Jérémy
Are you looking for an Infrastructure expert in VMware and Microsoft technologies?
I have over 15 years of experience.
I work in demanding environments: public service, industry, insurance, telecommunications…
I have collaborated with companies such as:
🔹 NaTran (formerly GRTgaz)
🔹 Bouygues Telecom
🔹 French Presidency
🔹 CNP Assurances
🔹 Services of the Prime Minister
🔹 ...
I can assist you with:
✔️ Design and architecture of Microsoft & VMware environments
✔️ Technical leadership, coordination, and management of infrastructure projects
✔️ Expertise in Microsoft environments (Active Directory, GPO, PKI, associated services)
✔️ Maintaining operational and security conditions (MCO / MCS)
✔️ Major incident, technical crisis, and root cause analysis (RCA) management
✔️ Infrastructure security, system hardening, and security compliance (LPM, ANSSI)
✔️ Industrialization and automation of administration tasks (PowerShell, scripting)
✔️ Supervision, observability, and log centralization for critical infrastructures
✔️ Technical documentation writing (DAT, HLD, DEX, DIS…)
✔️ Management and coaching of technical teams (L2 / L3, internal or external)
Do you have a project?
Contact me, I respond within 1 hour.
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system engineer, systems and networks engineer, vmware virtualization, vmware vsphere, vmware linux, vmware esxi, vmware veeam, vmware architect, windows system engineer, microsoft system engineer, architect, infrastructure architect, virtualization expert, infrastructure expert, vmware expert, microsoft expert, windows expert, windows architect, microsoft architect, active directory engineer, active directory architect
French
Native or bilingual
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km), Le Mans (up to 50km)
Experience
- NaTranInfra Expert / Project Manager: VMware & MicrosoftENERGY AND UTILITIESApril 2024 - Today (2 years and 4 months)Courbevoie, FranceNaTran (formerly GRTGaz) is a subsidiary of the industrial group ENGIE, created in January 2005. It is one of the two managers of the gas transport network in France.NaTran develops, operates, and maintains approximately 85% of the French gas transport network.I joined the System Team on a major modernization program for SCADA. A critical system that ensures real-time control and supervision of gas transport in France.My roles & achievements:1) Design of the complete technical architecture (in collaboration with lead architects)- VMware infrastructure (HLD/LLD)- network segmentation- system hardening- backups and supervision (observability)- integration of security solutions (AD, PKI, EDR, log collection/analysis)2) Build management:- coordination of the outsourcing provider, internal teams, and the SCADA editor- deployment management- task prioritization to ensure deadlines are met.Technical context:VMware, Active Directory, GPO, AD CS (PKI), AD LDS, Windows Server, DNS (Infoblox), GPO, PKI, Wallix Bastion, EDR, Antivirus, Fortinet, Palo Alto, Zabbix, SCADA, OPCUA, IT/OT, ZabbixNaTran
- Bouygues TelecomVMware & Microsoft Engineer - InfrastructureTELECOMMUNICATIONSMay 2020 - April 2024 (3 years and 11 months)Meudon, FranceBouygues Telecom is a major telecom operator in France, a subsidiary of the Bouygues group. It offers mobile, fixed, and B2B services to millions of customers and relies on a network of around 500 stores.I carried out expertise missions on a dedicated critical infrastructure, isolated from the global IT system. I had a dual role:- infrastructure technical lead- L3 support for the core components of the information system.My roles & achievements:1) Dedicated and isolated IT infrastructure technical expert:• Infrastructure project management (Architecture design, obsolescence management, technology watch…)• Crisis and incident management (infrastructure, network, backup)• Technologies: CyberArk/Veeam/vXrail/PRTG/Tanium/SCOM/Proxy• Training for L2 support teams in Poland2) L3 Infrastructure Support:• SCCM, VMware, Active Directory, WEC technologies• Infrastructure security (PingCastle, Oradad) and server hardening• Management of monthly Microsoft patching across the entire fleet• Creation of a log centralization infrastructure for a SOCTechnical context:VMware, vXrail, Veeam, Tanium, CyberArk, SCOM, SCCM, Active Directory, GPO, WEC, PingCastle, Oradad, Proxy, Sysmon, SIEM, Windows Server, Wec, Wef, Log, DNS, PKI, PRTG
- Assemblée NationaleMicrosoft/VMware Systems EngineerPUBLIC SECTORMay 2019 - May 2020 (1 year)Paris, FranceThe National Assembly is one of the two chambers of the French Parliament, at the heart of the legislative process and the oversight of government action.My roles & achievements:1) Management and execution of the hyper-converged Dell VxRail infrastructure implementation project2) Administration and maintenance of the following environments:- Active Directory- Exchange- DFS- VMware and Equallogic2) Automation of recurring tasks to industrialize operations and facilitate their takeover by support teams3) L3 infrastructure support and participation in on-call duties for the entire scope4) Contribution to the stability and security of the institution's critical environmentsTechnical context:VMware, Windows Server, Active Directory, Exchange, VxRAiL, Dell Equallogic SAN, Backup
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Education
- Master 2 - Master's Degree (5 years), Technical Architect in Systems and NetworksINSTA2012Bac +5, Architecte Technique en Systèmes et réseaux
- Master 1 - Bachelor's Degree (4 years): ERE, Systems and Networks AdministratorAFTI2011Bac + 4 : ERE, Administrateur Systèmes et réseaux
Certifications
- Master 2 Technical Architect in Systems and NetworksInsta2012
- Master 1 ERE, Systems and Networks AdministratorAFTI2011