Freelancer profile translated to English.
Back to original languageAbout Pierre-Jacques
Advanced technical Swiss Army knife in Linux and system architecture for Web hosting, I design, maintain and secure your complex web hosting
☑️ Linux Build and Run Expert, mastering system administration (admin-sys / Sysop / SRE), security, and problem-solving.
☑️ Seasoned Linux System Engineer, passionate about #opensource and #linux technologies, I manage over 200 servers / VPS / instances daily on Linux.
Technologies:
✅ Web Hosting (Apache / mysql / php / proxy / firewall / Virtualization / Backup)
✅ Virtualization (Kvm / Libvirt / Docker / Openvz / Lxc / Proxmox / Vmware / Virtualbox) containerization (Docker)
✅ Automation (Ansible / Bash / Node RED)
✅ Mail Service (imap / postfix / rspamd)
✅ Monitoring (Nagios / Centreon / Grafana / collectd)
✅ Databases (Mysql / Mariadb)
✅ Load Balancing (Haproxy)
✅Virtualization (Kvm / Libvirt / docker / Podman)
✅Cloud (Aws, OCI, GCP)
✅Servers (OVH, Scaleway, Hetzner)
✅Vpn (Zerotier / Ipsec / OpenVPN / wireguard)
✅Security (Cloudflare / Prophaze / Backup)
✅Panel (Webmin / Cpanel)
✅AI (N8n / Ollama / LLM)
I can intervene on your systems on a case-by-case basis if you encounter malfunctions, need to evolve your platform, or work on a long-term basis with system administration and consulting.
Working in a team, available, and experienced in remote work, I have the tools, methods, and know-how to successfully carry out projects.
French
Native or bilingual
English
Fluent
Spanish
Basic
German
Basic
Can work on-site
Amiens (up to 50km), Lille (up to 50km)
Experience
- Strivok
On Malt
Web Application Security HardeningDIGITAL AND ITJanuary 2026 - January 2026Montpellier, FranceMission involving consulting to best secure a web project subjected to a constant stream of intrusion attempts.✅ Assessment of the infrastructure's status and risk estimation (Documentation and audit)✅ Cleaning of the current hosting, validation of its capacity to handle the load (Forensic / Bash)✅ Advice on best practices for developers to avoid exposure errors.✅ Design and implementation of an intelligent firewall (Iptables / netfilter) - sandrine werthenschlagFailed Server MigrationDIGITAL AND ITNovember 2025 - November 2025Aurillac, FranceSoyoustart server running Cpanel and Centos 7.0.Server failed due to too many reboots to bring it back to production and full disks.✅ In rescue mode, I diagnosed the server's status and created SSH access.✅ In normal mode, I sorted out access and configured Cpanel correctly.✅ Via SSH, I updated the centos repositories and ensured the server's return to production and firewall protection (Gmail Whitelist).✅ I documented and communicated with the client.
- Iremia SantéWeb Hosting Architecture / Linux System AdministrationMEDICALMarch 2023 - Today (3 years and 3 months)Aurillac, France✅ Design / Implementation / Project Management of an infrastructure for a WEB Scraping bot in Podman / Python / Rednode✅ Design of a hosting infrastructure under KVM and Debian / Ubuntu with interconnection VPN✅ Design / Implementation of a hosting solution for business software in the healthcare sector✅ Migration of the existing hosting under Outscale to a solution designed and conceived at OVH on baremetal offering, hosting our virtualization solution (KVM)✅ Security and maintenance in production✅ Constant communication with the CTO for architecture optimization
Reviews
J
Jules
Infogérance serveur VPS - Strivok
Reviewed on 1/12/2026
I highly recommend Pierre-Jacques for his expertise, as well as for his teaching skills and support. He is attentive, gives the right advice based on our needs, and explains everything step by step.
Benjamin
IMMERSIVE
Reviewed on 2/4/2025
Pierre-Jacques was extremely responsive and very professional for this mission. Thank you to him.
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Education
- Company Tutor Training, Administration / management of small businessesVISIPLUS academy2022Formation Tuteur en Entreprise, Administration / gestion des petites entreprises
- Project Manager, TrainingMOOC2020Chef de Projet, Formation
Certifications
- Become a Linux System Administratorlinkedin
- Objective IPv6 (Mines-Télécom Institute - IMT)FUN2024