Professionally, Novryan has worked extensively on legal and policy matters with foreign embassies, and international organisations. His career includes work with a renowned Jakarta-based human rights law office, the British Embassy Jakarta, the International Committee of the Red Cross (ICRC) at national and Asia-Pacific regional levels, the UN Resident Coordinator’s Office (UNRCO) in Indonesia, and the United Nations Office of Counter-Terrorism (UNOCT), where he served as its first and only staff member in Indonesia.

During his employment with the human rights law firm in Jakarta, Novryan contributed to various legal documents for litigation and non-litigation purposes including legal opinion and memorandum for clients and courts when dealing with cases, as well as for governmental institutions such as the Indonesian National Human Rights Commission and the Indonesian Armed Forces. At the UK Embassy, he drafted numerous documents and reports on Indonesian legal proceeding (e.g. criminal proceeding, death penalty, extradition and human rights) for the Embassy in Jakarta and other UK government institutions in London such as the Foreign, Commonwealth and Development Office, Crown Prosecution Services, the London Metropolitan Police, and the National Crime Agency – both for the strategic policy and consular cases purposes. With the ICRC and the UNOCT, Novryan often provided analysis respectively on humanitarian and counter-terrorism and preventing and countering violent extremism issues. The UN Resident Coordinator Office in Indonesia often asked him to provide related information on strategic issues which affected the UN’s overall operations in the country e.g. international law, criminal law and refugee law. Novryan has passed the Bar Examination organised by the Indonesian Advocates Association (PERADI).