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  • GDPR
  • Compliance
  • Open source
  • Red Hat
  • IT Security



Professional Status

Just looking around

About Me

The first time I played with a Linux distribution was sometime in the late 90s, we still had 56kbps Internet connections through PSTN, cellphones were still an unusual luxury, and operating systems were still shipped on a CD-Rom (yes, with a floppy disk for booting installer :-).

Almost 20 years on, I remember that day as a turning point in my life, a milestone setting the path for at least the first decade of my career. For over 15 years now, I worked as an open source expert, specialised in GNU/Linux, and many other technologies developed by the community, and supported by open source specialists like Red Hat, Canonical, Digium, GitLab, Docker, Puppet, and plenty of other amazingly innovative corporations encouraging free and open source software.

As a matter of fact, I was a freelancer and entrepreneur from 2002 to 2017, I worked onsite or remotely for a broad range of clients of all sizes, in a variety of industries (but mostly in the financial and telecommunications sectors), all over Europe and—occasionally—in North America.


IT Architect

Since January 2018
Responsibilities completed
  • Project management of IT internal initiatives and infrastructure design
  • Technical expert for the portfolio of applications of the group
  • IT Regulatory & Compliance matters expert (GDPR, PCI-DSS)
  • IT Security point of contact (pentests, audits), reporting for top management and follow-up on open items

Owner & Consultant

YoLBi Sarl
September 2011 to December 2017
Responsibilities completed
  • Company management
  • Umbrella company for freelance contractor jobs
  • Vehicle for development projects

System Infrastructure & Database Engineering Transition Manager

January 2017 to September 2017
Responsibilities completed
  • Ad-interim management of 10 engineers (systems, virtualisation, storage, backup, DBAs)
  • HR management, recruitment (screening and interviews)
  • Interaction and negotiation with suppliers (vendors, manufacturers, service providers)
  • Resource management for requests from other teams, PMOs, product owners, and business managers
  • Major transition to IaaS/DevOps model (industrialisation and Agile provisioning)
  • Multicultural environment (collaboration with teams in Northern Ireland and Portugal)
  • Highly critical, highly available environment, including low latency trading components
  • Technical environment: RHEL 5/6/7; Ansible; Satellite 6; HP 3PAR; EMC DataDomain

Senior Linux Expert, Project Manager

Clearstream Services - Deutsche Boerse Group
February 2011 to December 2016
Responsibilities completed
  • Red Hat Satellite 6 / Standard Operating Environment Implementation Project
    - Single Point of Contact for the Group (Clearstream/DBG), coordination of the Standard Operating Environment (SOE) project with Red Hat Consulting resources
    - Project Management & Coordination (cross-country) of technical resources
    * Integration with existing infrastructure (Jenkins/Git, Puppet, DHCP/DNS)
    * Interaction with other corporate initiatives (cloud computing, virtualisation)
  • Daily administration
    - RPM packaging, management of internal software builds and middleware packages from third-party vendors (e.g. Red Hat JBoss), Satellite channels management and follow-up
    - Administration, deployment and maintenance of RHEL and Red Hat Satellite servers
    - Maintenance of kickstart scripts and deployment documentations and procedures
  • Technical referent for R&D PoC on containerisation (Docker)
    - Docker integration with existing software repositories
    - RPM packaging of middleware and tools for customisation of Docker containers
    - Technical support for integration of software components in customised containers
  • DNS Migration Project
    - Deployment of PowerDNS with replicated MariaDB instances
    - Bind zones migration (relying on PowerDNS scripts)
  • Software Migration Project: Single Point of Contact (SPOC) for Unix Systems Team
    - IBM WebSphere deployments (interaction with Middleware Team)
    - IBM ECM (Content Management software suite / interaction with IBM consultants)
    - IBM DB2 (interaction with DBA Team)
  • Project Management (Configuration Management & Compliance Checks)
    - Review of kickstart scripts and deployment processes
    - Deployment, configuration and customisation of a testing Puppet server
    - Creation and optimisation of Puppet manifests
    - Step-by-step deployment of Puppet agents in a testing Linux environment
    - Deployment and configuration of Red Hat Satellite 5's Configuration Channels feature
    - Development of management scripts relying on Satellite's API
    - Study of integration of a FIM (File Integrity Monitoring) tool to comply with audit requirements (Tripwire-based)
  • Project Management (Servers Automated Inventory)
    - IT assets inventory project management (OCSng-based + custom developments)
    - Deployment, configuration and customisation of an OCSng inventory server
    - Massive deployment of OCSng's agent in Linux & Solaris environments
    - Customisation and debugging of OCSng's agent according to business needs (including Network module debugging for Solaris)
    - RPM packaging for scripted and fully automated future deployments
    - Management of a customised development (assets' lifecycle management tool) linked with OCS database (interface between developers and internal customers)

Linux & Virtualisation Expert

Ministère de l'Intérieur
May 2010 to February 2011
Responsibilities completed
  • Deployment of new Linux environments
    - Industrial deployment of RedHat-based environments (RHEL 4 & 5) with PXE + kickstart
    - Deployment of hosting platforms based on Debian Linux
    - Management of new applications' deployment projects (planning & resource management)
  • Daily management of a thousand Linux servers hosting environment (part of a 3-people team)
    - Incident management (in priority for running environments)
    - Connection with other technical teams (storage, network, middleware...)
  • Consultant for the global virtualisation project of data centers
    - VMware vSphere 4 Enterprise Plus
    - Deployment, configuration and customisation of ESX and vCenter servers
    - Best-practices and documentation writing
    - Microsoft PowerShell management and administration scripts development

Infrastructure Architect, Virtualisation Expert

BNP Paribas
December 2009 to March 2010
Responsibilities completed
  • VMware / vSphere 4 architecture and virtualisation expertise
  • Management of an operational and technical assessment of virtualised infrastructure and delivery processes (x86 and IBM pSeries / AIX environments)
  • Technical referent on x86 virtualisation for the global data centers reorganisation project
  • Study and technical supervision of network optimisation project for virtualisation (Cisco Nexus 7000, 5000, 2000 and 1000v)
  • Management of virtualisation projects for several internal entities
  • Full EMC SAN storage environment (zoning design and inter-rooms / inter-datacenters switching for high availability challenges, study for DRP readiness)

Virtualisation Consultant and Trainer

April 2009 to August 2009
Responsibilities completed
  • VMware Infrastructure 3 / vSphere 4 (case study, pre-sales support, deployment consulting)
  • VI3 trainer (on-site training, labs deployment, case studies)
  • Design work for building an open source-based international CDN, mainly in Asia and Europe
  • Design work with IBM SAN storage solution (DS3000 series) + iSCSI or Fibre Channel switching (Cisco MDS 9000 switches for Fibre Channel part)
  • Industrial and media clients

Linux System Engineer

Optimitel (Global Concept)
August 2009 to October 2009
Responsibilities completed
  • Administration of web hosting environment (LAMP, DNS)
  • Administration of ToIP servers (Asterisk, Callweaver...), load balancers (F5 BigIP), monitoring servers (Nagios, Cacti)
  • Virtualisation project (VMware ESXi / vSphere 4)
  • Management of backup migration project (NetVault / TiNa)
  • Preliminary study for DRP project
  • Hitachi NAS management and upgrade project (NFS / iSCSI protocols)

Security Consultant

December 2008 to April 2009
Responsibilities completed
  • Security analysis of the infrastructure
  • Development and writing of PCI-DSS-compliant procedures
  • Deployment and control of PCI-DSS procedures implementation within the company
  • Technical support to production's team for deployment and administration
  • Configuration and deployment of file integrity monitoring software Tripwire

Linux System Engineer

December 2008
Responsibilities completed
  • Development of processes for Linux server administration
  • Development of administration shell scripts
  • Development of written procedures guides for international support teams in English

Linux System Engineer

NYSE Euronext
June 2008 to November 2008
Responsibilities completed
  • Deployment and administration of Red Hat Enterprise Linux systems (around 100 physical HP servers and 50 virtual machines powered by Xen)
  • Deployment and administration of test environments (qualification and integration) for stock-exchange quotation engines NSC and UTP
  • Software packaging and versioning for EUA and production
  • Configuration and deployment of switching devices (Cisco IOS)

Developer & Linux System Consultant

Meteor Networks
January 2008 to May 2008
Responsibilities completed
  • Development of a statistical summarisation tool for WiFi hotspots network
  • Survey for the Intranet rewriting project and the associated billing tool
  • Development of a modular Extranet for customers
  • LAMP environment

Consultant for ICT Global Projects

Telehouse Europe
October 2007 to January 2008
Responsibilities completed
  • Guidelines for the development of technical "Data Storage Management" offers (outsourced data storage)
  • Support on global HA managed solution development as part of end customers' BCP/DRP (redundant networks, multisite backups, high density equipment)
  • Feasibility study on an ESX virtual machine deployment project
  • Feasibility study on a WAN deployment for value-added services (BGP4 peering with Tier-2 telcos)
  • Technical environment: EMC Symmetrix DMX-3 (SAN) + Cisco MDS 9000 switches (Fibre Channel for SAN switching)

Executive Director

February 2004 to October 2007
Responsibilities completed
  • Deployment of a Web hosting platform, administration, monitoring and management of dedicated servers (around 20 servers hosted in Telehouse, Redbus and OVH)
  • Development of a remote backup service called Hard Disk over Network (HDoN) in Linux and BSD environments (SFTP and rsync over SSH protocols)
  • Deployment of IP centrex solutions under Asterisk
  • Development of IVR for charged numbers (critical environment - 50k minutes per month)
  • French translation of WebDrive software and exclusive distributor in France
  • Development of an e-commerce platform for Doriane – Zalys (LAMP environment)
  • Development (LAMP) and system administration (Linux and Windows 2003) for a client

Developer & System Administrator

June 2002 to January 2004
Responsibilities completed
  • First job experience, working (remotely) as a PHP developer (part-time while studying)