Roman was born in the Philippines. At 6 years old, he and his family migrated to Australia. Roman believes that access to justice is facilitated by supporting lawyers from diverse backgrounds.

Roman is a barrister primarily practising in Criminal Law, Regulatory Law, Administrative Law, Disciplinary Law and Family Law.

Immediately prior to joining the Queensland bar, Roman was a Senior Federal Prosecutor (and on occasions, acting Principal Federal Prosecutor) with the Commonwealth Director of Public Prosecutions specialising in fraud, and financial and corporate crime.

Roman has also held a variety of roles including as a Crown Prosecutor in the Northern Territory; a solicitor with Clayton Utz in Darwin; and as an Associate to a Judge of the NT Supreme Court. In 2017, a position as a Principal Lawyer with the Queensland Crime and Corruption Commission saw him move to Queensland. He later took a role as a Senior Lawyer with the Brisbane City Council in Litigation, Risk and Regulatory Enforcement.

Roman also lived in South America for about three years and in that time worked with local Non-Government Organisations in Peru, Argentina and Colombia.

Roman speaks Bisayan/Cebuano (Filipino language) and Spanish. He understands Tagalog and Portuguese.