Nicolas DESOMBRE

As part of Ouidou’s infrastructure team and on consulting job for a wide variety of customers.

• For a customer in the online gaming sector, implementation of an autoscaling solution for an application composed of around 10 microservices (Ruby) on an existing Kubernetes Azure AKS platform.
• For a customer in the ski resort sector, migration of a booking application, consisting of around 100 microservices (Java) from Docker Swarm to Kubernetes.
  • Build AWS EKS platform
  • Helm chart development
  • Hashicorp Vault deployment
  • Setting up Argo CD and Argo CD Vault plugins
  • Auto-scaling implementation with Keda and Karpenter
• For a customer in the energy supply sector, migration of a Jira/Confluence environment (33.000 users) on on-premises virtual machines, to AWS and Kubernetes.
  • Build AWS EKS platform / RDS / S3 according to Atlassian preconisation
  • Implementation of an auto-scaling solution with Keda and Karpenter
  • Setting up Jira/Confluence Datacenter Edition
  • Data migration
• For Ouidou’s customer apps hosting, build and maintain in operationnal condition, of an on-premise containerized shared hosting platform.
  • Virtualization with Proxmox
  • Securisation and load-balancing with Pfsense and Ha-Proxy
  • Orchestration with K3S and storage with Longhorn

Technical environment :

• Infrastructure-as-code: Ansible / Terraform
• Containerization
  • Kubernetes :
    • Rancher / RKE / K3S / Longhorn
    • AWS EKS / Azure AKS
  • Docker CE
• CI/CD: Gitlab CI / Jenkins / Azure DevOps Pipeline / Argo CD
• Virtualization : Proxmox 8
• Linux : Debian 11 & 12
• Public Cloud : AWS / Azure / Scaleway / OVH Cloud
• Security: Hashicorp Vault / Hashicorp Boundary / Pfsense / Ha-Proxy
• Monitoring : Prometheus / Datadog
• Database : PostgreSQL / MySQL

For a major account in the health sector, “MoveToCloud” project, migration of all Vmware on-premise virtual machines to Azure.

Maintenance in operational condition on the Azure cloud perimeter.

Deployment of CI/CD pipeline for Terraform/Terragrunt, based on Github Action workflow.

Disaster recovery solution deployment based on Azure Site Recovery and Site Recovery Manager (for Vmware AVS)

Technical environment :

• Azure :
  • Virtual Machine
  • Load Balancer
  • NetApp Files
  • Vmware AVS
  • KeyVault
  • Function App & Automation Account
  • Storage Account
  • Azure Site Recovery
• DevOps Tools :
  • GitHub
  • Terraform
  • Powershell, Python & Shell
  • Ansible
• Hashicorp Vault
• Science Logic Monitoring

Within the E-Health team, in charge of keep in good working/running order, the business unit’s customer infrastructure, on OnPremise (Nutanix VMware) or cloud (AWS/Azure) hosting in HDS area.

Centreon 2.7 to 19.10 migration

Active Directory 2008R2 to 2016 migration

Technical environment :

• Windows Server 2008/2012/2016
  • IIS
  • Active Directory
  • SQL Server
  • Failover cluster
• Linux (Cent OS 7, Ubuntu 18.04 & Debian 10) :
  • Apache 2, Nginx, Tomcat
  • MySQL/MariaDB, PostgreSQL
  • Docker
  • Pacemaker
• Monitoring : Centreon 19.10
• Load-balancing: F5
• Networks and security : Bastion Wallix, Cisco ASA, Firewall Fortinet and Juniper.
• Automation : Ansible and Jenkins
• Scripting : Powershell, Shell and Groovy

For a major account, in charge of systems administration (maintain in operational condition) for:

• Windows Server 2003/2008/2012
• Debian 8 & Cent OS 6/7
• Active Directory
• OpenLDAP
• Hyper-V
• Vmware
• Citrix XenApp
• Google Apps

Technical documentation update

PowerShell scripting and integration into Jenkins.

For a major account, in charge of systems administration (maintain in operational condition) on the perimeter :

• Active Directory,
• Windows Server 2003/2008/2012R2
• Vmware vCenter server / ESXi hypervisor.

Server migration from Windows 2003/2008 R2 to Windows 2012 R2

Deployment and configuration of new Windows (2012R2) and Vmware (ESXi/Vcenter) servers

Vmware server migration from ESX 5.5 to ESX 6

In charge of the administration of the global system and network infrastructure, which includes :

• Active Directory
• Vmware vCenter / Site Recovery Manager /
• Storage Array (NetApp)
• Windows/Linux based Server
• Exchange 2003
• Switch (HP Procurve/H3C).
• Security Appliance (Firewall, Antispam Relay).
• IPBX (Aastra A5000) in multi-site environment
• Antivirus solution (Trend)
• WDS Server and imaging of workstation
• Backups in multiple locations.
• Troubleshooting technical problems and implementing solutions.

Management of the workstation (on Windows XP/7 and Mac OSX), technical support at end-user, and the management of the mobile phone parc (Android and iOS device)

In charge of the administration (level 1 and 2) of the LDAP Directory and some servers such File Server/ Exchange/Call Server/Antivirus Server and Switch.

Management and deployment of the workstation and providing technical support at end-user.

In charge of creating a test platform, which prepare and validate the migration from Windows Server 2003/XP to Windows Server 2008R2/7.