Freelancer profile translated to English.
Back to original languageAbout Hugo
Systems and network administrator, I work daily on hybrid Linux/Windows production infrastructures: Linux servers, Windows Server S2D clusters, Dell network equipment (OS9/OS10) and Extreme Networks Wi-Fi.
What I can do for you:
Linux Administration:installation, hardening, storage management (LVM), troubleshooting application stacks (I have notably resolved production incidents on Graylog/OpenSearch/MongoDB environments).
Monitoring and log centralization:Graylog pipeline deployment (Winlogbeat, Sidecar), PRTG configuration, network and Windows log ingestion, volume management.
Network:Dell switch configuration, topology incident analysis (VLT), syslog, managed Wi-Fi (ExtremeCloud IQ).
Automation:Bash, Python and PowerShell scripts for operations, cleanup and data export.
Graduated from Epitech (3 years of C/C++/Python development) and currently pursuing a Master's degree in Information Systems Architecture, I bring a dual dev/ops background: I don't just administer, I script, automate, and document. Preparing for the RHCSA certification.
Available for one-off or recurring missions: setting up monitoring, Linux troubleshooting, automating operational tasks, network configuration audit.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- AcensiSystems, Networks, Security AdministratorTECHNovember 2025 - Today (8 months)Paris, France- Centralized Syslog logs from ~30 Dell switches into Graylog (~100,000 events/day), accelerating network incident diagnosis through centralized correlation instead of manual per-device inspection.- Deployed Arpwatch on 15 VLAN sub-interfaces, monitoring ~2,000 active MAC addresses to detect MAC/IP changes (flip-flop, new stations) in real-time, enhancing Layer 2 anomaly detection.Stack: Graylog, Arpwatch, Dell switching, Syslog
- AccuracyJunior Systems EngineerTECHOctober 2023 - November 2025 (2 years and 1 month)Paris, France- Hardened the environments of ~80 Windows servers and ~8 domain controllers in accordance with ISO 27001 standard (T0/T1/T2 tiering, least privilege), reducing Domain Admin accounts by 40% across a fleet of over 700 users.- Automated the lifecycle of users, groups, and mailboxes via PowerShell scripts, reducing manual provisioning time from 40 min to 5 min per account (−87%) and generating a traceable audit trail for compliance.- Deployed and maintained Debian/Apache2 servers hosting GLPI; applied security patches and hardening to ensure the resilience of ITSM services.- Managed Nutanix virtualization and Rubrik backups across 17 offices in 14 countries, with differentiated retention policies by criticality (SLA Gold/Silver/Bronze), ensuring data availability and integrity.- Organized awareness training sessions and simulated phishing campaigns, increasing report volume by 160% (measured via ticketing system)Stack: Windows Server, Active Directory, PowerShell, Debian, Apache2, GLPI, Nutanix, Rubrik
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Education
- M.Sc. Information Systems ArchitectHexagone2026M.Sc. Architecte des systèmes d'information
- B.Sc. Secure Infrastructure AdministratorEpitech2023B.Sc. Administrateur d'infrastructures sécurisées