His professional journey began with an apprenticeship as a body builder, which he successfully completed in 2010. Here, he developed his craftsmanship and a deep understanding of mechanical processes. After a brief stint as a flight attendant at Germanwings (now Eurowings), where he perfected his communication skills and crisis management, he dedicated himself to organizing electronic music events in Cologne in 2011. There, he gained his first experience in planning, logistics, and event management and built a network in the music scene.

In 2014, Seamus graduated with a degree in audio engineering from the SAE Institute in Cologne. This laid the foundation for his long-term career as a freelance audio engineer and sound technician. For over nine years, he worked internationally for live concerts, festivals, trade fairs, and TV productions, assuming technical management roles and developing creative solutions in stressful live environments. His work with renowned artists and event organizers underscored his passion for music and technology.