~/arn0.be
cv.pdf ↓
$ whoami

Arnaud Etienne

Welcome to my personal website 👋 I'm Arnaud, a software engineer from Belgium 🇧🇪

$ cat about.md

Full-stack engineer with a backend-heavy focus, comfortable writing solid SQL and designing event-driven systems (RabbitMQ). Cares about test coverage as a tool for confidence rather than a box to tick. At ease across the infra stack, from Docker and Kubernetes to Terraform and CI/CD ("Started from Heroku, now we here."). Uses AI coding assistants daily as leverage on top of solid fundamentals. Values clean, readable solutions, mentoring, thorough code reviews and honest technical feedback.

$

Articles

medium ↗

From a forgotten PDF to a full-stack app with an AI sous-chef new

How a simple food menu PDF grew into a full-stack app with an AI that fills in the recipes for you.

Is Your Staging Environment Secure?

A personal story about discovering a public staging environment.

Self-Hosting Minecraft on a Raspberry Pi 5, Part 2

A lightweight monitoring dashboard with FastAPI, system metrics and server controls.

Self-Hosting Minecraft on a Raspberry Pi 5

From bare Pi to a self-hosted Minecraft server with backups and remote access.

Optimizing database queries in Rails with Active Record

Practical techniques to track, understand and fix slow queries in real projects.

Projects

kort/

kort.arn0.be ↗

A simple link shortener. Paste a long URL, get a short one that works for a year. No account, no tracking.
chez/

chez.arn0.be ↗

My food and recipe app. A forgotten menu PDF turned full-stack app, with an AI sous-chef that fills in the recipes.
tools/

tools.arn0.be ↗

Small dev utilities in one place: JSON, JWT, Base64, hashes, IDs, timestamps, cron and regex. Everything runs in the browser, nothing you paste leaves it.
pi-minecraft/

Minecraft on a Raspberry Pi 5

Self-hosted with backups and remote access, monitored by a small FastAPI dashboard.

Now

Software Engineer at Commuty, since Nov 2023.

Off the keyboard: hiking, squash, skiing in the 4 Vallées, beers with friends, sci-fi/fantasy, catching up on classic video games, and eating.

Reading

readingJade War — Fonda LeedoneJade CitydoneThe Last Contract of IsakodoneThe Faith of Beasts
goodreads ↗

Experience and education

download cv.pdf ↓
2023-11 → now

Software Engineer @ Commuty

Core parking booking features, public APIs and statistics pipelines, across the whole stack:
  • Rails and Quarkus services in a 10+ microservices, event-driven architecture over RabbitMQ
  • Angular web app built on an internal component library, plus an Ionic mobile app
  • Connectors between our Parking Access API and external access-control systems (Syntegro, SALTO KS…)
  • Kubernetes deployments with Helm, AWS infrastructure with Terraform, CI/CD pipelines
2022-07 → 2023-10

Lead Developer @ Squarehub

Led the development of Squarehub's recruitment platform: product decisions, architecture and day-to-day delivery.
  • Managed and coached a team of 3 software engineers
  • Defined product priorities and technical roadmap
  • Improved internal tools and automation
  • Oversaw data security and compliance
  • Handled internal IT hiring
  • Worked closely with founders on business needs
2019-12 → 2022-06

Full-stack Developer @ Overloop

Ember.js + Rails CRM.
2019-02 → 2019-05

Mobile Development Intern @ RiseUp

Xamarin app built from scratch.
2015 → 2019

BSc Computer Science and Management @ Institut Paul Lambin

Cum Laude. Exchange at Cégep de Chicoutimi, Canada (2018).
stack=Rails · Quarkus · JS · PostgreSQL · RabbitMQ · Docker · Kubernetes · Terraform · AWS

Links

github.com/NelsonEU ↗linkedin.com/in/arnaud-etienne ↗medium.com/@arnaudetienne ↗