// The story, in order

Before I knew it was a job, I just wanted to understand the machine.

First computer in my hands at five, thanks to my dad. I never believed what I was doing could be a job — I just wanted to understand. From Visual Basic to the cloud, here’s the story, in order.

LinkedIn ↗
~/julien
$ whoami
Julien Mauclair
Born 2000
$ cat ./start.txt
2005 — First computer in my hands, thanks to my dad.
$
// 2005 — Today

How I learned computing

Not a skills sheet. The real story — a father, a first computer at five, a teacher unlike any other, and everything that came after.

2005
age 5

It started with my dad

First clicks

My first computer in my hands at five. If I ended up here, it’s because of my dad: at home he passed on far more than computing — a taste for electronics, the urge to understand how machines work, to open them up, to not be afraid of them. The machine was never off-limits, it was a playground. I clicked everywhere, took things apart, started over. I didn’t know yet that it would fill my whole life — let alone that it could become a job.

premier-ordi.png
>
premier ordinateur · 2005
2009
age 9

David, and a GIF wallpaper

Visual Basic

The real spark came from David, my computer teacher in fourth grade. He used a wheelchair, and one day he showed me how to set an animated GIF as my desktop wallpaper. In 2009, to me, that was pure magic. That same year I typed my first lines of Visual Basic — I didn’t understand all of it, but I could feel I was really talking to the machine, giving it orders.

fond-decran.gif
MsgBox "bonjour"
fond-d’écran.gif · animé
2012
age 11–12

My first real code

Java · Minecraft

Real code, I first touched it inside Minecraft. In Java, I built my own items — objects that didn’t exist until I wrote them into being. Watching an idea appear in a world just because I’d typed the right line… that never let go of me.

mod.java
mod.java · nouvel item
2013
age 12–13

IP, ports, and my first servers

IP · ports · servers

Then I wanted other people to play in my worlds. I started hosting my own Minecraft servers. That’s where I met what still drives me today: IP addresses, ports, the way one machine finds another. Infrastructure — long before I knew it had a name.

server-start.log
0.0.0.0:25565 · en ligne
2014
age 14

Fixing things to understand them

Repair · electronics

Around fourteen, I spend hours repairing things: computers, phones, mine and other people’s. Swapping a screen, replacing a battery, unlocking a device, reinstalling a system. The more I opened machines up, the more I understood how they held together — the hardware as much as the software. That curiosity for electronics, I owe to my dad.

diagnostic.app
diagnostic · réparé / débloqué
2015
age 15

Putting something online

WordPress

At fifteen, my first WordPress sites. Publishing something at an address anyone, anywhere could open — that was another kind of magic, bigger than the first.

wp-admin.png
mon-premier-site.fr · publié
2016
age 16

When a site becomes software

PHP

A year later I moved to PHP. My first real applications: forms, databases, logic that decides. The site was no longer a storefront — it was software that did something.

app.php
app.php · logique + base
2017
age 17

My first modules, on Shopify

Ruby · Shopify

At seventeen, I write my first modules in Ruby on Shopify. It’s my first encounter with another language and the e-commerce ecosystem: extending an existing platform, plugging my code into other people’s, and seeing it run for real merchants.

module.rb
commande #1042
-10%
module.rb · Shopify
2018
age 18

Production, for real

Production

At eighteen, my first real production server. No more sandbox: real users, things breaking at 3 a.m., and the responsibility of keeping it all standing anyway. I learned as much from the outages as from everything else.

prod-server.png
prod · uptime 99.9%
2020
age 20

The cloud, and scale

AWS · Next.js

At twenty, I move into the cloud — over five years ago now. AWS. I build my first real infrastructures: solid, and above all built to iterate on. In parallel, my first Next.js apps; I’d touched Node.js younger without fully getting it, and now, finally, it all clicked.

aws-console.png
aws · 18 régions
2021
age 21

Our e-commerce, and real infra

PrestaShop · AWS

At twenty-one, we launch our own e-commerce store — one we’d later sell. I’m behind the whole infrastructure on AWS: distribution and CDN, databases, scaling. I also write dozens of PrestaShop modules to bend it to our needs. For the first time, my code and my infra directly serve a business that’s mine — every optimization shows up in the numbers.

prestashop.php
PrestaShopAWS
boutique · modules + infra
2023
age 23

Deploying, at scale

EC2 · at scale

At twenty-three, I deploy dozens of EC2 instances. The ‘one server’ reflex becomes ‘a fleet’: load balancing, scaling, monitoring — and the question that has never left me since: is all of this actually sized right, or are we paying for nothing?

ec2-fleet.png
ec2 · flotte auto-scalée
2026
today

Architecture, and the cost of things

Architecture · finops

Step by step, I got serious about the craft: shipping to production, tracking and optimizing costs, architecture. Turning an idea into a system that holds, without waste. From the kid setting a GIF as his wallpaper to the engineer sizing infrastructure — that’s exactly what I do today, at Stralya.

stralya-archi.png
CDN
LB
App
DB
coût ↓ 38 %
architecture · finops
// Pass it on

Knowledge is meant to be shared

My dad didn’t just show me computers — he passed on a broader curiosity: electronics, the urge to understand how machines work, to open them up, to fix them. Today, I write guides and stories to pass the same thing on. And I’d love for you to be part of it.

Your turn

A story, a guide, a technical explanation? Share it here. This wall is built together.

A storyA guideA technical explainer
Propose a contribution
// Where it led
StralyaCo-founder

Co-founder of Stralya. With my team, we help scale-ups build, optimize and run their AWS infrastructure — finops, architecture, migration, devops. The same kid who clicked everywhere on the family PC — twenty years later.

2005first computer
17 yrscoding
AWSthe playground