Laurent Jouanneau

Live in south of Brittany, France

50 years old, married, three children.


Manager, Consultant & Senior Software Engineer


Senior software developer, with 25 years of experience in web development and 15 years in Mozilla technologies. Studies, specifications, developments, deployments, communication with customers, team management are my daily tasks.

Aeras of Expertise

Work experience

Since February 2022

Manager of the SAAS hosting at 3liz

May 2018 - February 2022

Consultant and development manager at 3Liz

I'm working at 3liz, a software editor about GIS tools (Geographics Information Systems).

From June 2010 to March 2020

Co-owner of a company, InnoPhi

We provide various services for customers around web developments and software based on Mozilla technologies.

Our customers are big companies like EDF, Europcar, as well as little companies.

From October 2009 to July 2014

Teacher at the university of Evry (near Paris)

Few days per year, I teached on Mozilla technologies to students preparing a master : courses were about XUL add-ons, HTML5, Web Apps for Firefox OS, and also Git...

From February 2009 to May 2010

Senior Software Engineer at Zoomorama

Design and development of ZoomCreator, an XML Wysiwyg editing tool, to edit "zoomable" documents for the web, and using Mozilla technologies (XUL, XulRunner...).

From June 2004 to February 2009

Senior Software Engineer at Disruptive Innovations

Software development using the Mozilla platform. Disruptive Innovations was a member of W3C.

From October 1999 to June 2004

Software Engineer at Aston

Aston was a services company in computer science (It doesn't exist anymore).

October 1996 to october 1998

UAP-AXA insurances

Analyst programmer, alternately with my studies (special contract with the university). I worked on programs made in COBOL (IBM ES 9000 mainframe).


MIAGE (master's degree in computer science), alternately with my job at UAP. Université Paris XI (at Orsay).
DUT informatique (Computer science degree), specialization in system programming and networks, Université Paris XI (at Orsay).


Extracurricular activities

I began to develop in 1986, and worked not only on many personnal projects, but also on some public projects. Here are my activities these last years.

Personal projects
Contributions on the Mozilla project (2003-2016)
Founder of the french web site, created in october 2003, and founder of the Xulfr association, created in january 2007 and ceased on 2013. Activities: tech-evangelism, documentation and french translations of some tutorials, online help for french developers (forums, IRC), conferences...
Mozilla code contributor, during my spare time or during my working time for the needs of my professionnal projects. Some of these contributions are improvements on the XUL template engine, support of Sqlite in XUL templates, improvements on the XML and the XHTML serializer.
In 2004-2008, I gave conferences about the Mozilla Plateform (XUL...) during some open-source software events in France like Libr'east, JDLL, Solutions Linux...
I was a member of the association Mozilla-Europe (dissolved in 2012). I help on Mozilla booth during events like Fosdem, Solutions Linux etc...
Since 2011, I am one of the admin system of the web server of the french community of Mozilla (
Web standards "evangelism"
Co-founder with Tristan Nitot and 9 others people, of Openweb, a web site created in 2003 dedicated to web standards, with tutorials and articles.
I gave conferences about web standards, during some events like Paris-Web. I published also on my blog, news about web standard, articles on HTML5, CSS3...
Other projects
See some other projects, Laurentj account and Jelix organization on Github.

Technical skills

W3C Web standards: HTML 5, CSS 3, XML, DOM, Web components, SVG... Frontend development with Webpack, NPM, jQuery, Backbone...
C/C++, PHP 7/8, Javascript, Bash, Python
Mainly GNU/Linux (Debian, Proxmox). MacOSX and Windows. Virtualization: Docker, LXC, Vagrant...
PostGreSql, MySQL, Redis, Sqlite, InfluxDb
System administration
Apache, Nginx, PHP-FPM, RabbitMq, Grafana, Monit, OpenSSH, DNS..
Git, Gitlab, Ansible
In the past...
I used many languages, technologies and tools in the past. Some of these are Mozilla technologies (XUL, XBl, XPCom C++, ES2016+), Mercurial, MongoDb, CouchDb, RelaxNG, Jenkins, Subversion, PHP 3/4/5, JAVA/JSP, MS SQL Server, Oracle, CVS, ASP VBscript, Win32 programming with Borland C++, XWindows programming, Asm HP48..

Updated: 2023-09-06