David Courtey
I’m a DevOps tech lead and backend engineer. I automate infrastructure so developers can ship on their own, and I keep critical applications running on AWS, Kubernetes and Terraform.
david@crty.dev · crty.dev · www.linkedin.com/in/david-courtey-sre-devops · github.com/David-Crty
Experience
Vorwerk
SRE consultant
AWS · EKS · ArgoCD · Grafana · Java · Python
AXA
DevOps tech lead consultant
I led a team of three DevOps engineers running 12 critical applications across 8 to 10 environments on OpenShift and AWS, at a 99.9% SLA or better. Automated blue/green deployments brought a release under one minute.
- Moved the CI pipelines onto a reusable Tekton framework.
- Wrote a generic Helm chart that every project adopted.
- Built a self-service platform for ephemeral cloud environments.
- Kept the infrastructure as code, in reusable Terraform modules.
- Set up observability with Prometheus, Grafana and PagerDuty.
OpenShift · AWS · Tekton · Helm · Terraform
Qonto
Site reliability engineer
I was one of five SREs working on developer experience and platform reliability, on Kubernetes and AWS.
- Built a Go API that lets developers deploy their own applications without waiting on SRE.
- Defined and tracked deployment KPIs, including frequency and success rate.
- Interviewed developers to measure adoption and find what to improve next.
Kubernetes · AWS · Go
freelance.com
Backend developer and SRE
I led the migration from Azure to AWS on Kubernetes, and worked with the backend team on the Symfony application.
- Moved the platform from Azure to AWS, with Kubernetes and Terraform.
- Improved backend performance in the Symfony code.
AWS · Kubernetes · Terraform · Symfony
IO Tech Studio
Lead backend developer
I led five developers across more than 20 client projects, and made the technical architecture decisions.
- Moved the infrastructure from bare metal to AWS, with Docker Compose and Kubernetes.
- Designed the production and pre-production environments on AWS for client projects.
- Built backend applications with Symfony and Vue.js.
AWS · Docker · Kubernetes · Symfony · Vue.js
AWStudio
PHP backend developer
I was a backend developer in a team of ten, building web applications for clients like McDonald’s and Amazon France.
- Brought in Elasticsearch for search and MongoDB for data storage.
- Pushed for clean code standards across the team.
PHP · Elasticsearch · MongoDB
ecpim.com
PHP backend developer
I built the backend of an accounting application for real estate management, and worked on its architecture and database.
PHP · MySQL · Linux
Skills
- Platform
- Kubernetes · OpenShift · Helm · ArgoCD
- Cloud and IaC
- AWS · Terraform
- CI/CD
- Tekton · blue/green deployments
- Observability
- Prometheus · Grafana · PagerDuty
- Languages
- Java · Go · Node.js · Python · PHP
- AI agents
- Claude Code · MCP servers · agent skills for ops workflows
Education
- 2016
- Master’s degree, IT management
- 2014
- Associate degree, computer science