After his studies at the LTS, Radjen immediately started working at a medium-sized MEP company in Zwijndrecht. He has also followed various studies, such as the TSI high-voltage power plant technician, in the evenings. During his career, he worked as a (main) calculator at various MEP companies. Radjen also gained a lot of experience at a large MEP consultancy as a cost consultant.

Since 2018, Radjen has been working as a senior MEP cost consultant at IGG. In addition to his responsibilities such as making cost estimates, providing MEP cost advice, drafting second opinions, investment calculations and operating budgets, he is involved in a wide variety of complex projects.

Radjen provides advice on building-related MEP costs in all phases of a construction cycle.