Gert Aertsen has been involved in new media since 2001. He has been working as an artist, organizer, technician and programmer, and collaborated with different organizations.

He was part of Machine Centred Humanz, a multi-disciplinary collective of artists exploring the different fields of technology, arts, robotics, and experimental music. They realized a long list of unconventional projects ranging from networked audiovisual performances and sound installations to artbots. Within Mxhz Gert Aertsen was mostly concerned with installations and artbots like"Thoughts Go By Air" and "Roving Walter Walter". Their projects were shown, at Artbots NY, ZKM Karlsruhe and Tesla Berlin...

Together with Pieter Heremans and Hendrik Leper he started Code31, an open studio for research, development and discussion about techniques and methodologies in media art. It served as a space to experiment with new technologies and stimulate interchange between artistic disciplines. Code31 gathered artists and engineers. One of their last installation was SE/30:Welcome to the 20th century back. Although the collective stopped to exist, they still collaborate from time to time, if only to show some of their old projects.

And in 2004 he co-founded OKNO, an artist run organization based in Brussels, established as an umbrella organization for three initiatives Looking Glass, Mxhz and Code31.

Currently he is working as an independent artist, working for his own organisation Lahaag.org and has a teaching job at HISK. Gert Aertsen lives and works in Brussels