Rémi Jouannet, System Architect
Contact
- Email: remijouannet@gmail.com
- Location: Paris / Saint-Ouen-Sur-Seine
- Link: linkedin, github
Summary
I am a System Architect with 10+ years of experience in technical leadership, Linux virtualization infrastructure and designing distributed systems at scale
Skilles
Linux, bare-metal, PostgreSQL, Mysql, Redis, Cisco UCS, Python, Go, Terraform, Packer, Git, Distributed systems, TCP/IP, Envoy, POSIX, ZeroMQ, RabbitMQ, SaltStack, Ansible, OpenTelemetry, Prometheus, Kubernetes, Bash, VXLAN, GENEVE, KVM, QEMU, Linux Networking, NFS, Consul, Etcd, Opencode, Claudecode, AI-assisted development
Experience
System Architect Lead, 3DS OUTSCALE, Saint-Cloud, France, May 2021 - Present
- Developed a proof of concept and designed for an HPC offer
- Collaborated with leadership to Reorganize the tech department into multiple teams by creating a new production platform
- Rebuilt the local dev environment from scratch in 2 months to parallelize new feature development
- Redesigned the copy-on-write storage manager to reduce its disk space footprint
- Conducted benchmarks and implemented the changes to increase storage (BSU) performance by +30% and network (VPC) performance by +50%
Lead SRE, 3DS OUTSCALE, Saint-Cloud, France, Sept 2018 - May 2021
- Tech Lead for a team of 10 SREs
- Led a program to massively reduce technical debt and increased the region scale by 4x
- Contributed code to the cloud orchestrator, ~200 changes merged so far
- Level 3 engineer for the on-call rotation
Site Reliability Engineer, 3DS OUTSCALE, Saint-Cloud, France, Sept 2016 - Sept 2018
- Managed 6 cloud regions and Deployed new ones worldwide
- L2 On-call shift rotation
- Reduced maintenance and upgrade times by +50% through improved automation
- Optimized the stack to achieve API availability of 99.9%
- Developed the first packer and terraform integrations for the Outscale API
Freelance, Linux System Administrator, Bat C, Nov 2015 - Sept 2016
- Managed more than 20 websites with Nginx, Supervisor, PHP-FPM, SSL, MySQL, and Rundeck
Apprentice Production Engineer, Neurones IT, Nanterre, France, Oct 2014 - Aug 2016
- Designed and operated a data warehouse with MySQL, ReportServer, BIRT and Talend
Systems and Networks Technician, PROJIXI Europe, Fontenay-Sous-Bois, France, Nov 2013 - Sept 2014
- Developed a C#/.NET tool to help L2 support for a provisioning application (CA Unicenter Service Desk users)
Open source contributions
- Zmq support for AF_VSOCK
- new features for the official vsphere packer integration
- consul ACL integration in saltstack
- new resource in OVH terraform provider
Education
| dates | School | Degree |
|---|---|---|
| 2014-2016 | Ingésup, Paris | Expert informatique et système d’information RNCP niv. 1 |
| 2012-2013 | IUT de Sénart / Fontainebleau | Licence Professionnelle ASR, Administration Réseaux et Systèmes |
Languages
- English: TOEIC 910, Professional working proficiency
- French: Native or bilingual proficiency