Royce Argel Mallari has extensive experience as a Structural Engineer working on various projects for companies like Department of Public Works and Highways, Arcadis, Chiyoda Philippines Corporation, and Lycopodium. Their expertise includes designing steel structures for mining, underground railway stations, and public school rehabilitation projects. Mallari utilizes various software tools for design analysis such as ETABS, RAM Concept, STAAD, and SPACE GASS. Currently, Mallari holds the position of Senior Structural Engineer at Lycopodium.