DevOps Engineer
- Communication
- Leadership
- Autonomy
- DevOps SRE
- Production
- Live System Support
- Project implementation and project owner
Travel, Photo, Cryptocurrency, DIY, Origami, Music
Thomas VARETZ
78125 Vieille-Église-en-Yvelines
+33 (0)6 37 66 29 06
thomas@varetz.fr
42 years old
Driver's license - with vehicle
Linux :
Debian / Ubuntu, Red Hat / CentOS, FreeBSD
Container :
Kubernetes, Helm, Docker, Kong,
Cert-manager, Vsphere / Openstack CSI, K3s, MiniKube, KinD
DevOps, CI/CD, IaC :
Ansible, Gitlab, Terraform,
Puppet, Chef
Cloud :
Cloudflare, AWS, GCP, Azure, Scaleway, OVH
Web server :
Nginx, Apache, Lighttpd, Tomcat, Caddy
Database :
Mysql / Mariadb, Postgresql, Sqlite
High availability :
Squid, Haproxy, Keepalived
Monitoring and metrics :
Zabbix, Prometheus,
Grafana, Thanos, Alertmanager, Loki, Munin, Mon, Nagios
Virtualization :
Lxc, Kvm, Proxmox, Xen, Virtualbox,
Vmware
Programming / Scripting :
Bash, Php, Html, Perl,
Python, Javascript, Ruby
Security :
Fail2ban, Rkhunter, Zed Attack Proxy,
Greenbone Security Manager
Firewall :
Unifi, pfSense / OPNSense, Zyxel,
Iptables, Shorewall, Ufw, Palo Alto
Diagnostics :
Strace, Syslog, Top, Netstat, Lsof
Backup :
Rsync, Snapshot, Rsnapshot, Bacula,
Backup-manager, Cp
Remote control :
Ssh, Vnc, Telnet, Nx, Rdp
High performance :
Openmpi, Numa, Slurm, Munge
Network :
TCP/IP, Lan, Vlan, Dhcp, Pxe, Tcpdump,
Loadbalance
Server :
Ftp, Dns, Smtp, Imap, Pop
Thomas Varetz
DevOps Engineer
Elancourt
april 2022 - Today
Elancourt
- Ansible, Gitlab, Terraform
- Prometheus, Grafana, Thanos, Alertmanager, Loki
Montigny-le-Bretonneux
march 2018 - march 2022
Montigny-le-Bretonneux
Within a team of 3 people with a fleet of 170 equipment, for SME / key account customers (CA-CIB, Société Générale, Cision, Kantar media).
Objectives: Transform a homemade solution of "Speech-to-Text" in a turnkey product that can be installed in a high security constraints environment (banking trading rooms). Definition of the infrastructure needs, implementation, production and LSS of the fleet. Maintain the CI / CD pipeline as well as the middleware developed for the "Speech-to-Text" product. Manage the team, coordinate its work and anticipate its areas of development.
- Development of a state-of-the-art application stack, distributable by package manager- Establishment of a complete CI / CD pipeline used as a reference by other products
- Integration of SaaS and On-premise solutions
- Work in close collaboration with product managers, development / R&D teams
- Carry out the installation of the various products, carry out the necessary implementation and qualification operations
- Service level guarantor and customer / user representative
- In charge of LSS for SaaS production, internal infrastructures and supplier management
- Monitoring of indicators, incidents, requests and creation of operational reporting
- Identification of improvement plans for the various processes
- Writing of technical documents and detailed installation procedures
- Participation in customer training on technical administration and advanced solutions functions
- Definition and evaluation of individual objectives, in line with the company's strategy
- Responsible for organizing the team and developing individual / collective capacities
- Support and management of customer projects, from launch to delivery
- Rationalization and cost reduction
- Participation in pre-sales
- Chef Omnibus : Creation of a full-stack package with single file configuration
- CI/CD pipeline : Gitlab-ci, Docker, Terraform, Ansible, Proxmox
- Packages server apt (nginx + freight) and yum (nginx + createrepo)
- Middleware in Bash using Chef Omnibus Ruby models, automatic launch of "Speech-to-Text" processing on new file arrival with Fswatch
- Proxmox Clusters
- Monitoring and metrics with Zabbix server / proxy, Grafana
Versailles
January 2016 - October 2017
Versailles
In charge of a fleet of 130 equipment, for key account customers (Total, Shell, Bp, ExxonMobil).
Objectives: Fleet implementation, production and LSS.
- Development of the technical strategy in line with the company objectives- Management of the information system and development of business projects
- Functional studies and architectural recommendations
- Management of suppliers
- Installation, maintenance and securing of the information system
- Support, assistance and training for users and cross-functional functions
- NFS storage server of 300TB in Raid 60 with Multipath and data replication
- Infiniband / Ethernet network for 4 bays in private room
- Virtual machines with LXC containers
- Deployment with Ansible and Docker
- Multisite interconnection and security with Openvpn, Shorewall, Fail2ban
- LEMP servers
- Load balancing and high availability with Keepalived, Haproxy, Nginx
- DNS (Bind), Mail (Cyrus, Postfix, Spamassassin), FTP (Proftpd)
- Monitoring and metrics with Zabbix + development of internal tools (Bash, Php/Mysql, Snmp)
- Project management with Redmine
Vincennes
October 2010 - November 2015
Vincennes
Within a team of 3 people with a fleet of 200 equipment, for VSE / SME customers (Grosbill, Auchan, programme-tv.net).
Objectives: Fleet implementation, production and LSS.
- Level 3 incident management / resolution- Client project management: Needs collection, Build (implementation), Run (production, LSS)
- Supervision of systems and applications, during the day and on call 24/7
- Users support
- Pre-sale
- Virtual machines with KVM
- Multisite interconnection and security with Openvpn, Iptables, Fail2ban
- Load balancing and high availability with Keepalived, Squid, Nginx
- DNS (Bind), Mail (Courier / Dovecot, Postfix / Qmail, Spamassassin), FTP (Pureftpd)
- Monitoring and metrics with Munin and internal tools
- Management of client projects with Redmine or Gitlab
- Managing customer tickets with Cerberus
Saint-Ouen
January 2009 - October 2010
Saint-Ouen
Within a team of 30 people with a fleet of more than 1000 equipment, for SME / key account customers (Dassault, Sfr, JeuxVideo.com).
Objectives: Maintaining the fleet in operational condition.
- Level 2 incident resolution and scalable maintenance- Users support
- Supervision of systems and applications, 24/7 in 3x8
- Live System Support
- Virtual machines with Vmware
- Multisite interconnection and security with Openvpn, Iptables, Fail2ban
- DNS (Bind), Mail (Dovecot, Sendmail, Spamassassin), FTP (Proftpd)
- Monitoring, metrics and management of customer tickets with internal tools
Île-de-France
December 2005 - May 2017
Île-de-France
EURL : Dec. 2005 - Dec. 2008 / Auto-entrepreneur : Mar. 2009 - May. 2017, with more than 300 customers (1/3 VSE/SME, 2/3 individuals).
- Administrative, financial and technical management of the company- Customer / supplier relationship management
- IT outsourcing
- Website development
- Hardware sale
- Virtual machines with Openvz / LXC containers (Proxmox)
- Deployment with Ansible and Docker
- Multisite interconnection and security with Openvpn, Shorewall, Fail2ban
- DNS (Bind), Mail (Dovecot, Postfix, Spamassassin), FTP (Pureftpd)
- Load balancing and high availability with Keepalived, Haproxy, Nginx
- Monitoring and metrics with Zabbix, Munin, Mon + development of internal tools (Bash, Php/Mysql, Snmp)
- ERP and CRM with Dolibarr