Xavier Beaudouin
Xavier Beaudouin

Senior Systems and Network Administrator

Open to offers · Member since 16 Oct 2026
Location
Koh Samui, Thailand
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Freelance
Experience level
Lead

About

Professional summary

I am a systems and network administrator with more than 28 years of experience designing, operating, securing, and modernizing complex IT infrastructures. My background spans service providers, hosting platforms, cloud environments, financial systems, and enterprise networks.

I specialize in FreeBSD, OpenBSD, Linux, network routing, IPv4/IPv6, BGP, OSPF, security, automation, storage, virtualization, and monitoring. I have extensive hands-on experience with Cisco, Juniper, MikroTik, Ubiquiti, F5, NetApp, ZFS, VMware, and open-source infrastructure tools.

I have led technical teams and architecture initiatives as a CTO, manager, engineer, consultant, and founder. I enjoy redesigning networks, improving resilience, automating operations, reducing operational costs, and building reliable hosting and cloud platforms.

I am an active FreeBSD contributor and have been a FreeBSD ports committer since November 2024. I also contribute upstream patches and ports, maintain FreeBSD-based systems, and work with Poudriere, jails, VNET, and ZFS.

I am curious, autonomous, and collaborative, with strong project-management and R&D experience. I am comfortable working remotely with international teams and supporting customers through complex infrastructure, security, and networking challenges.

Skills

48 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

System Administrator Klara Inc

Administer FreeBSD systems remotely, including security patching, network operations, and GitLab server maintenance.

Contribute to the FreeBSD ecosystem by upstreaming patches and ports while maintaining reliable production infrastructure.

Senior System Network Administrator ITAE

Redesigned network infrastructure and provided network and system administration services for ITAE customers.

Worked remotely on FreeBSD, ZFS, routing, and infrastructure operations.

Founder RIS-LSI

Founded an independent technology practice delivering systems, network, development, and energy-storage expertise.

Work includes BSD and GNU/Linux administration, Cisco, Juniper, MikroTik, Ubiquiti, Wi-Fi, C, assembly, Pike, Python, and Victron Energy solutions.

Network Engineer SquareFactory

Designed global VPN solutions connecting infrastructure and cloud environments.

Migrated SRX routing functions to high-capacity MikroTik infrastructure and implemented distributed professional monitoring.

Network & Systems Engineer Hotcity SA

Modernized hosting and network platforms through ESX migration, Linux-to-FreeBSD migration, automation, IPv6 enablement, monitoring, and capacity planning.

Redesigned redundant networking, NAT, Wi-Fi deployments, and hosting services, while providing OS, network, R&D, and customer infrastructure expertise.

Network & Systems Engineer, NetOps BSO Network

Optimized and deployed network management systems using Cisco, Brocade, Debian, and LibreNMS.

Supported network automation and research and development initiatives.

Network & Systems Engineer Gandi

Redesigned backbone architecture from cold-potato to hot-potato routing and managed transit, peering, RIPE, IPv4, and automation activities.

Handled DDoS mitigation, network accounting, load-balancer expertise, technical cost-reduction projects, and presales advisory work.

Network & Systems Engineer Horizon Software

Secured and rationalized infrastructure, built a server room, and delivered P2V migration initiatives.

Implemented LDAP and Active Directory integration, pfSense firewall migration, Linux automation, Observium monitoring, VPN access, and security operations.

R&D Engineer AFNIC

Led R&D engineers working on official publications with ANSSI and AFNIC.

Conducted DNS research and developed a web interface for DNSWitness data while connecting production and R&D teams.

CTO Teclib'

Managed a team of four network and systems administrators and developed managed hosting, SaaS, and security solutions.

Led partnerships, tender responses, presales engineering, customer migrations, QoS design, encrypted L2 VPN work, and technology R&D.

CTO So-Privé

Managed developers and engineers while architecting cloud computing platforms covering messaging, networking, storage, and datacenter operations.

Designed private-cloud infrastructure with Cisco UCS and Nexus, hybrid ZFS and SSD storage, RIPE connectivity, and automated node installation.

Network & Linux Manager Capital Fund Management

Redesigned multi-datacenter networks, internet access, routing, firewalls, proxies, and a multicast-based trading architecture.

Administered 300 to 500 Linux servers, industrialized Red Hat deployments, deployed compute clusters, ZFS file servers, monitoring, and anycast services.

Network & Hosting Manager Kheops Organisation

Redesigned the backbone from Layer 2 to Layer 3 and operated xDSL collection, LNS, RADIUS, and ISP services.

Managed datacenter operations, deployed NetApp storage, researched redundant customer access, supported customers, and supervised part-time staff and trainees.

Network & Systems Architect Atradius (Groupe Etoile)

Designed and deployed a disaster recovery plan across AIX, Linux, Citrix, and BEA WebLogic environments.

Provided systems and network expertise to a four-person team and deployed technology solutions to reduce operational costs.

Project Team Leader Tiscali Enterprises

Architected and researched secure B2B systems, including industrial web hosting, webmail, homepage platforms, load balancing, switching, storage, and OSS services.

Managed two Pike developers, led the CAMAS open-source webmail project, and acted as administrator and security officer for B2B platforms.

Network & Systems Administrator and Architect Intégra

Secured and stabilized a three-media platform using OpenBSD and Linux and redesigned internal Layer 2 networks.

Installed backbone connectivity, managed peering, deployed mail and webmail services, planned IP renumbering, and supported platform migration and consolidation.

Network & Systems Administrator and Architect Société des Editions Historiques et Culturelles

Directed operations for an internet platform and created an internet portal focused on French historical heritage.

Deployed mail, mail-to-fax, firewall, webmail, routing access, and associated internet services.

Network & Systems Administrator / Professor Ecole Centrale d'Electronique

Taught C programming to first-year BTS Electronics students on a weekly basis.

Implemented mail, internet services, the official website, Cisco internet access, and backup administration for school servers and networks.

Education

Learning history

Ecole Centrale d'Electronique

Computer & Network Engineering degree, Computer and Network Engineering

Lycée Jeanne d'Arc

Associate Degree in Electronics (BTS Electronique), Electronics

Lycée Sacrés Cœurs

French High School Diploma (Baccalauréat F2), Electronics

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