A. Iskandar G. Intan, widely known as Mr. Arnold, completed his formal education in architecture in 2003 at Petra Christian University, Surabaya. His involvement in various freelance projects before graduation made him aware of the core competencies essential for an architect, particularly in construction management, which he further pursued from 2004 to 2006 at the same university.

In 2005, Mr. Arnold officially founded AIGI Architect + Associates, driven by a vision to deliver values that are meaningful to both project owners and building users. Starting with residential projects, the firm has since grown its portfolio to include commercial, institutional, and hospitality developments, as well as urban master planning in several cities across Indonesia.

Professionally, he became actively involved with the Indonesian Institute of Architects (IAI) in 2009 and has held a professional certification since 2014. In 2016, he began lecturing at several universities and became a key initiator in the Architectural Profession Program (PPAR) in 2018 at Petra Christian University. Concurrently, AIGI Architect + Associates was designated as an official internship firm for architects pursuing professional certification in Indonesia.