Julien Danjou

2002

Youngest Debian developer

Became the youngest Debian developer at 19. Already arguing about package dependencies.

Started blogging

Opened a blog. Apparently couldn't stop. Still at it 23 years later.

Moved to Paris

Moved to Paris. The city where every tech meetup ends at a bar.

2007

awesome window manager

Created awesome, a tiling window manager for X. Named it with zero irony. If you've used Linux, you might have heard of it.

2010

GNU Emacs & Lisp

Started contributing to GNU Emacs. Got deep into Lisp, ended up maintaining a few Common Lisp packages and wrote a bunch of Emacs extensions. Contributed to Org-mode.

2011

OpenStack

Joined OpenStack and became one of its most prolific contributors. Led the telemetry project as PTL for several years.

2014

Red Hat, Gnocchi & a book

Joined Red Hat. Created Gnocchi, the first ultra-scalable time series database. Self-published The Hacker's Guide to Python. Named in Tariq Krim's list of 100 notable French developers, compiled for the French Tech initiative.

2017

Scaling Python

Published book number two: Scaling Python. Because one book about Python wasn't enough.

2019

Serious Python

Published Serious Python with No Starch Press. 25,000+ copies sold. Turns out people want to write better Python.

Datadog

Built a Python profiler from scratch at Datadog. Spent a lot of quality time inside CPython internals.

Mergify

Co-founded Mergify. Helping engineering teams merge code, manage CI/CD, and ship faster.

Business Angel

Started investing in early-stage tech SaaS startups.

Moved to Toulouse

Left Paris after many years for the south of France.

Nom d'un Pipeline !

Launched the first French podcast on CI/CD. Someone had to.

Toulouse SaaS Club

Founded the Toulouse SaaS Club, a non-profit bringing local SaaS founders together.