Alongside his artistic practice, Andrei also works as a sound director and audio engineer specializing in technology for experimental music, improvisation, and electroacoustic performance and art, with a strong focus on live sound direction, immersive multichannel audio, and multimedia installations using custom hybrid digital–analog systems. He designs and programs complex sound environments with technological skills spanning software and hardware, sound synthesis, generative systems, Max/MSP, modular and historical instruments and effect devices, as well as recording, mixing, and audio postproduction. He has directed sound for music theater, instrumental and electroacoustic concerts, consulted on and produced multimedia performances and installations, edited and designed sound for videos, interactive installations, podcasts, and radio, and organized and planned exhibitions, concerts, and performances.