Freelancer profile translated to English.

Description

Passionate Systems & Network Engineer, I design, secure, and troubleshoot infrastructures for all types of environments: SMEs, local authorities, multi-site, healthcare... I like to understand a system from A to Z to make it more stable, faster, and simpler to operate.

I work daily on:

🔹 Firewalls & Network Security: Fortinet, pfSense, Stormshield, IPsec/SSL VPN, NAT, filtering, SD-WAN

🔹 Infrastructure & Virtualization: Proxmox, VMware, Hyper-V, clusters, migrations, HA

🔹 Backups & Disaster Recovery: Veeam, Beemo, incident recovery strategies

🔹 Systems: Windows Server, Linux, NAS/SAN, ESXi, monitoring (CheckMK, Zabbix).

🔹 Hardening & Network Services: NGINX, Fail2Ban, EDR, monitoring, secure reverse-proxy, MailinBlack.

What I enjoy about my job is quickly solving complex problems, stabilizing broken environments so they finally run correctly, documenting cleanly to make teams autonomous, and above all, providing concrete solutions, never just talk.

I am reactive, direct, and reliable.

When I take on a subject, I see it through to the end. Clear analysis, concrete actions, measurable results.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

GPLExpert
Network and Systems Engineer
DIGITAL AND IT
May 2024 - Today (2 years and 1 month)
Arpajon, France
🔹 Deployment of On-Premise and private cloud infrastructures (Proxmox, VMware, Hyper-V)
🔹 Installation and configuration of ESXi on DELL servers, with network configuration (vSwitch, VLAN, trunk)
🔹 Setup and administration of Veeam Backup with integration to MSSQL and PostgreSQL databases
🔹 Configuration of IPSec VPN tunnels (phases 1 & 2) for multi-site interconnection
🔹 Setup & Administration of Fortinet, StormShield, pfSense firewalls: rules, NAT, URL filtering, SSO, Geo-IP.
🔹 Management of FS.com, Aruba, Cisco switches (stack, VLAN, POE, LAG...)
🔹 Configuration of NGINX reverse proxy, security via Fail2Ban, and EDR (CrowdStrike, ESET, Cybereason)
🔹 Centralized monitoring (CheckMK) and backup management (Veeam, Beemo)
🔹 Writing technical documentation and client support
🔹 Active participation in migration projects, version upgrades, industrialization
🔹 Implementation of network high availability solutions:
– Hardware stacking, link aggregation (LACP), MLAG
– Redundancy with CARP (pfSense)
– SD-WAN on StormShield and Fortigate
Network Administration & Security Data Backup and Recovery Routing & Switching High Availability Virtualization: VMware, Hyper-V, Proxmox, VirtualBox, Gns3
Mairie De Sainte-Marie
Network and Systems Engineer
PUBLIC SECTOR
June 2023 - January 2024 (7 months)
Réunion
🔹 Complete redesign of the network architecture and equipment rationalization
🔹 Installation and configuration of a Proxmox lab for testing/pre-production
🔹 Setup of an open-source SOC (Zabbix, ARPWatch, Nessus, Heimdall, Guacamole)
🔹 Management of backups (Veeam, UrBackup) and access bastion (Guacamole)
🔹 Project management for operator migration (IDOM → Zeop) and monitoring of telecom infrastructure changes
🔹 Writing specifications and documenting the infrastructure
Systems and Network Administration Information Security Backup Solutions IT Project Management Virtualization Engineer
Mairie de Sainte-Marie
Network and Systems Administrator
PUBLIC SECTOR
September 2020 - June 2023 (2 years and 9 months)
Réunion
🔹 Active Directory migration, Windows Server version upgrade
🔹 Microsoft 365 deployment with LDAP synchronization via Azure AD Connect
🔹 VMware monitoring via vSphere + Maintenance of business VMs
🔹 Installation of GLPI and implementation of ITIL procedures for asset management
🔹 Development of a web portal in Java/MySQL (Front-end / Back-end via PDO)
🔹 Support for urban planning services (Cart@DS Referent) and users (on-site, phone)
Systems and Network Administration Microsoft 365 Administration ITSM IT Support Virtualization

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Djamil Fenelon

Network and Systems Engineer

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