Freelancer profile translated to English.
Back to original languageAbout Aurélien
Devops system administrator with a strong background as a full stack web developer (PHP/Python).
As an experienced Linux system administrator, I can help you manage and optimize your application hosting server.
Whether it's configuring a new node, troubleshooting performance or security issues, or automating repetitive tasks, I can offer professional assistance to ensure your system runs smoothly.
The services I can provide include:
- Installation and configuration of operating systems (Unix/Linux only)
- Configuration and management of network services (like SSH, FTP, DNS)
- User and group management
- Data backup and restore
- Implementation of security strategies
- Performance optimization
- Task automation using scripts (bash, python, terraform, opentofu, ansible)
- Diagnostics and troubleshooting
I also have good experience in supporting the setup and maintenance of a Kubernetes cluster.
I strive to provide fast and efficient service, with clear and regular communication to keep you informed of the mission's progress.
On the web development side, I enjoy creating tailor-made, turnkey solutions, not necessarily starting from an existing project. But I am also adept at taking over a developed project to maintain or improve it.
I wish to bring my expertise and skills to a variety of projects, as well as confirm and expand my knowledge.
Feel free to contact me for an initial discussion about your project; I can be reached by phone, mail, email, or simply over a coffee :).
See you soon!
French
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- MeloEmergency intervention: RAID disk replacement + RabbitMQ restoreDIGITAL AND ITDecember 2025 - December 2025La Rochelle, FranceIntervention on a production server, under Rocky Linux, with partial RAID1 (2x NVMe 1TB) failure requiring rapid intervention to avoid any service interruption.Actions taken:1. Failed RAID management
- Diagnosis of nvme1n1 disk failure (Serial: 22513E45B40D)
- Clean removal of failed partitions from all RAID arrays (md0, md1, md2, md3)
- Coordination of physical disk replacement
- Complete RAID reconstruction: partition table copy and reintegration of new partitions
- Monitoring of resynchronization (~80 min for 921 GB)
2. Complete RabbitMQ restoration- Resolution of a critical post-reboot issue (corrupted Mnesia tables, lost users)
- Complete and clean reset of the Mnesia database
- Restoration of complete configuration via definitions.json file (users, permissions, bindings, routing, etc.)
- Validation of the rabbitmq_delayed_message_exchange plugin
- Connectivity tests and go-live
- DLLAnalysis of Rocky Linux server malfunctionDIGITAL AND ITOctober 2025 - October 2025La Rochelle, FranceA Hetzner dedicated server running Rocky Linux 8 experienced two brutal shutdowns within 19 hours, with no apparent cause, impacting production services.Following an in-depth analysis of system logs, security audits, and comprehensive hardware diagnostics, I identified that the crashes systematically occurred during the execution of scheduled tasks generating CPU load.A thermal stress test revealed a critical failure in the cooling system: the processor reached its thermal limit of 95°C in less than 90 seconds, triggering emergency shutdowns for hardware protection.Investigations also highlighted anomalies on all voltage rails and ACPI errors at startup, definitively ruling out any software cause, intrusion, or storage issue.I provided the hosting provider with complete technical documentation, including the precise crash history, load test results, component status, and targeted intervention recommendations for cooling and power supply.This investigation allowed for the certain identification of the root cause and facilitated rapid hardware intervention.
- Wild Code SchoolDesign of training content on AWSEDUCATION AND E-LEARNINGOctober 2025 - October 2025La Rochelle, FranceFor a training course leading to the professional title of Devops System Administrator, I wrote and led a week of classes on AWS and LocalStack, to practice cloud services locally.On the agenda:- Discovery and overview of cloud platforms- Discovery of services provided by AWS- Discovery and use of LocalStackIn addition to the classes, I prepared workshops guiding learners through hands-on practice. These are accessible from a Proxmox server that I configured myself to carry out the entire training.
Reviews
C
Chems
Xlancer
Reviewed on 12/3/2024
Very fluid communication, good understanding of needs and relevant solutions proposed.
Julien
ICC Digital
Reviewed on 5/4/2023
It was a pleasure working with Aurélien. His work is of high quality, he is proactive and communicates about his work. I highly recommend him!
Recommendations
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Education
- Technical degree in Information ManagementLycée Fénelon2010Formation basée sur la mise en place de réseau d'entreprise, développement web (asp / php), configuration serveur dédié unix (debian, ubuntu, ..).