Hangga currently serves as the Executive Secretary at Universitas Islam Indonesia, where he researches and teaches Australia's relations with the Asia-Pacific region. In 2023, he was selected for the Australia Awards Short Course on Strategic Equilibrium in the Indo-Pacific. In 2024, he was honoured to be part of the Emerging Indo-Pacific Leaders Program by the Perth USAsia Centre, supported by the U.S. State Department.
His current research also explores the politics of higher education as a global public good. With over a decade of experience in university administration, he has led initiatives across academic programs, public relations, internationalisation, strategic partnerships, student admissions, university secretariat functions, and alumni engagement.