Hello World

My internet homeplace, where you can find more details about me.

Overview

package main

import "fmt"

const (
 name string = "Leslie-Alexandre DENIS"
 city string = "Lyon, France"
)

var (
 currentCompany string = "TenTen"
 currentRole    string = "Head of Platform"
 openToWork     bool   = true
)

func main() {
 fmt.Printf("I'm %s@%s trying to be the best %s each day", name, currentCompany, currentRole)
}

Contact

You can reach me on these various platforms.

Skills

Over the past 15+ years, I’ve tackled diverse engineering and team challenges, conducting research, experimentation, and delivering solutions across the entire technology stack; from low-level networking and systems to orchestrating large-scale infrastructure. My work spans performant CI/CD pipelines, automation frameworks, data…

I believe that true seniority lies in clearly defining the problem, timeline, and complexity before considering specific tools. The approach matters more than the technology itself.

However, recognizing that the industry often emphasizes tools and years of experience, I’ve included a technology overview below. Please note this list isn’t exhaustive, and I acknowledge the table format could use improvement :)

TechnologyExperience (0-5)
Amazon Web Services
Google Cloud Platform
OpenStack
Kubernetes
Consul
Helm
RDBMS (Postgres, MySQL, MariaDB)
MongoDB
Redis
RabbitMQ
NATS
Kafka
HAProxy
Nginx
Traefik
Kong
Istio
Linkerd
Ansible
Puppet
Terraform
Terragrunt
GitHub Actions
GitLab CI
Jenkins
ArgoCD
Grafana
Prometheus
ELK
Sentry
Datadog
Python
Ruby
Go
NodeJs
Shell
Reactive Autoscaling
High Performance Computing
Systems Design
Agile Project Management
Web Application Security
Network Security
System Hardening
Linux Systems
Networking
(Distributed) Storage
more about work experiences…