Marc Carmier is a seasoned Site Reliability Engineer and senior platform specialist with over 30 years in computing and 11 years focused on modern cloud-native operations. He designs and implements pragmatic infrastructure, automation and deployment solutions across on-prem and public clouds (AWS/GCP/Azure), with deep expertise in Kubernetes, Terraform, Ansible and image automation (Packer). A hands-on technical lead, he has driven datacenter-to-cloud migrations, built large emulation stacks for developer environments, and authored comprehensive architecture and runbook documentation while training teams. He also contributes to open-source testing for well-known tools like HashiCorp Packer, improving CI reliability and edge-case coverage. Based in Toulouse, France, Marc pairs systems-level experience (Unix/Linux, virtualization, storage) with tooling development in Go, Python and shell to deliver auditable, repeatable platform operations.
11 years of coding experience
10 years of employment as a software developer
Front End Development certification Computer Software Engineering, Front End Development certification Computer Software Engineering at freeCodeCamp
Ingénieur informatique Informatique, Ingénieur informatique Informatique at EFREI - Grande école du numérique
BTS Informatique Industrielle, BTS Informatique Industrielle at Lycée Technique Dorian
Packer is a tool for creating identical machine images for multiple platforms from a single source configuration.
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:6 commits, 9 PRs, 61 comments in 3 years 2 months
Contributions summary:Marc focused on improving the testing coverage and reliability of the Packer project. Their contributions include writing tests to validate error messages related to the `windows-restart` provisioner, and for the `vmware-iso` builder, specifically testing remote type and empty value cases. They also added a debugged provisioner with associated unit tests for pausing between the execution of different provisioners within the build process.
Provisionning development databases from mixed sources
Contributions:15 releases, 203 commits, 121 PRs in 2 years 5 months
databasemixed-sourcessourcesdatabases
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Marc Carmier - Site Reliability Engineer at Exoscale