Pierre Guinoiseau

Senior SRE on the Production Engineering team, working on the reliability, security and tooling of the infrastructure that runs GitLab.com.

• Operated and evolved the platform that runs GitLab.com, mainly on GCP, with workloads running on GKE and GCE, managed through Terraform, ArgoCD, Helm and Chef.

• Led the consolidation of all Kubernetes deployments from Helmfile, Tanka and FluxCD to ArgoCD.

• Built and owned a Terraform-managed registry for GitLab Infrastructure groups and projects, covering mirroring configuration between GitLab.com and internal GitLab instances, Vault integration, and the ephemeral GitLab access tokens used across the GitLab platforms.

• Built and ran the HashiCorp Vault deployment used across GitLab infrastructure for secret distribution and access control.

• Hardened infrastructure change management through Atlantis-based Terraform workflows and OPA policy enforcement.

• Covered the APAC shift of a global AMER + EMEA + APAC follow-the-sun on-call rotation.

• Mentored teammates and onboarded new joiners, sharing knowledge through pairing, training material and architecture documentation.

• Embraced and promoted GitLab's CREDIT values across day-to-day work, with consistent positive recognition for collaboration, iteration and transparency.

Senior SRE on a globally distributed team supporting Magic Leap's customer-facing services, joined during the development phase of the Magic Leap One. Promoted from Senior to Lead Site Reliability Engineer in April 2020.

• Ran and improved Magic Leap's production and build platforms, both running across AWS and GCP, mostly on EC2, GCE, EKS and AWS Lambda.

• Helped migrate multiple services from AWS to GCP.

• Operated the platforms using Concourse CI, GitLab, GitLab CI, HashiCorp Vault and Terraform.

• Lead developer on Rocket, an internal Go CLI that wrapped Terraform operations and other day-to-day workflows.

• Maintained a dozen custom Terraform providers and hundreds of Terraform modules.

• Ported most Terraform modules and dozens of projects from Terraform 0.11 to 0.12.

• Covered the APAC shift of a global AMER + EMEA + APAC follow-the-sun on-call rotation.

• Drove cost-optimisation work that reduced AWS and GCP spend.

DevOps engineer in the eLearning team, delivering, customising and hosting Moodle and Totara LMS sites for schools, universities, corporations and government organisations.

• Built and ran a CI and deployment platform on GoCD and Ansible.

• Operated the Moodle hosting infrastructure on Catalyst Cloud (OpenStack).

• Contributed PHP backend development across several customer Moodle sites, building and tailoring features to client needs.

• Worked on PaCT (Progress and Consistency Tool), a Django web application.

Systems engineer in a small on-site team working alongside a remote ops team.

• Designed, built and ran the hosting infrastructure across two datacentres and AWS, totalling 400+ physical and virtual hosts serving 150+ websites and web services.

• Migrated a large SVN monorepo into hundreds of Git repositories, coordinating closely with multiple development teams throughout the split.

• Built a CI platform on Jenkins and Docker.

• Built a centralised deployment system using Capistrano, fronted by a custom REST API in Grape and Sidekiq.

Python developer and Linux sysadmin on a Paris-based team building and running intranet and extranet solutions for several customers.

• Built and shipped Zope and Plone applications.

• Ran and migrated Libération's website (a major French newspaper).

• Modernised the Xen-based hosting infrastructure.