Recalbox is one of the main open-source operating system allowing to play video games of yesteryear. I've been involved in its development since 2017, mainly on the GUI.

With my partner, we created Gojob in 2015, with the sole objective of hacking unemployment. For more than four years, we have developed a great company that now employs more than 1000 people a week, and nearly 20 millions Euros turnover. This adventure as a founder has allowed me to get used to the different aspects of the creation and life of a company (boards, fundraising ) and to set up a technical team that is as committed as it is specialized. It was truly one of my most rewarding experiences.

Freelancer As a freelancer, I have developed and participated in various projects, mainly around web technologies. One of the most important projects I was entrusted with was to develop a real-time air quality monitoring software. This software controlled various autonomous sensors by RF or GSM. I had to reverse-engineer the historical software whose sources were not available due to a subcontracting conflict.

Available on web and mobile, Let was a social network like Facebook but focused on video media sharing. I fully developed the web client which was a SPA using HTML5, CSS3 and JavaScript technologies. Its engine that I also developed was an MVP framework close to the JS Backbone. With the help of the dedicated team, I developed some key parts of the Python backend, notably the first version of the mediabox (the storage server), the "chat rooms" which allows to the users to chat like IRC does but also to share medias (Python, MongoDB, Redis ).

After two years as web developer, I became the CTO of Digitick, the French e-ticketing leader. I led a team of twenty software engineers for 5 years. Digitick has been bought by Vivendi in 2011, with hundreds of large and renowned clients and more than 15 millions of tickets sold each year. Digitick is a complete ticketing solution powered by PHP / MySQL / JavaScript. I managed a myriad of short and long term projects and worked hard to get a platform which hosts hundreds of e-ticketing in white label, a solid access control solution and a back-office user-friendly and highly used by event organisers. Digitick managed the ticketing and access control of the Eiffel Tower as well as the main French concert halls, stadiums, museums and festivals. During this experience, I also had increased significantly my Debian skills, daily (nightly) working with the CIO on the production platform (MySQL replications, DB optimisations ).

Inside Secure was a startup developing RFID solutions ranging from processor design to complete packaged solutions. I have developed in-house testing solutions and benches for chips, from PCB design to software and user manuals. My most interesting project was a solution to analyze the functioning of RFID chips before their submission for certification. I had to code an ISO 15963 frame analyzer. https://github.com/jbdemonte