Guillaume Giamarchi
Entrepreneur & Freelance at Indépendant
Vescovato, Corsica, France
Summary
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Rockstar🎓
Top SchoolGuillaume Giamarchi is an entrepreneurial software and site reliability engineer with 13+ years building backend and frontend systems and 15 years in IT broadly, now operating as a freelance founder from Corsica. He has deep hands-on experience across cloud and bare-metal infrastructure—designing networks, deploying Open Compute hardware, automating deployments, and running global test platforms for ITRenew. A strong OpenStack and Terraform contributor, he implemented and hardened FWaaS support in prominent projects like terraform-provider-openstack and HashiCorp's Terraform, showing both protocol-level networking expertise and pragmatic state-handling fixes. Guillaume blends software development, systems operations and networking development, having led cloud services at Numergy and automated large-scale hardware testing workflows. He brings a practical appetite for tackling low-level race conditions and deployment edge cases that often hide in production.
13 years of coding experience
11 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Université de la Méditerranée (Aix-Marseille II)Auditor, Auditor at Uppsala universitet
English, French, Spanish
Stackoverflow
11reputation
13kreached
0answers
1question
Github Skills (26)
docker10
api-design10
testing10
firewall10
cloud-infrastructure10
go-testing10
networking10
terraform10
dockers10
cicd10
terraformer10
automation10
infrastructure10
go10
openstack10
Programming languages (9)
Github contributions (5)
docker/machine
Dec 2014 - Sep 2015
Machine management for a container-centric world
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:27 commits, 12 PRs, 91 comments in 9 months
Contributions summary:Guillaume primarily contributed to the `docker/machine` repository by implementing features and fixing bugs related to the machine management functionality. They refactored and improved the `machine ls` command, ensuring proper sorting of the output. The user also addressed an issue with the SSH interactive mode and added support for OpenStack driver by incorporating necessary dependencies and adding OpenStack driver. Further refactoring was done to improve code reusability and option management.
containersopenflowdocker-machinedockerkubernetes
terraform-provider-openstack/terraform-provider-openstack
Feb 2015 - Oct 2015
Terraform OpenStack provider
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:29 commits in 8 months
Contributions summary:Guillaume primarily contributed to the development of the Terraform OpenStack provider, specifically adding and modifying FWaaS (Firewall as a Service) resources. They implemented features related to tenant IDs, enabling and configuring FWaaS resources. Furthermore, the user focused on fixing race conditions and updating tests, improving the stability and reliability of the provider.
providerterraform-provider-openstackopenstackterraformterraform-provider
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