Prior to establishing DPCLS, Dirga worked with numerous Indonesian top-tier law firms, such as Hadiputranto Hadinoto & Partners (Baker & Mckenzie Jakarta), Assegaf Hamzah & Partners (in association with Rajah & Tan Singapore) and Hiswara Bunjamin Tandjung (in association with Herbert Smith Freehills), to name a few.

He has previously assisted multinational companies, investment banks, private equity firms, sovereign wealth funds, and high net-worth individuals, in doing business in Indonesia. Dirga specializes in real estate transactions, foreign investments, mergers & acquisitions, and corporate matters in general. His experiences include dealing with matters relating to hospitality, trade, food & beverage, plantation, manufacturing, intellectual property rights, as well as many others.​

In addition, Dirga has also worked closely and personally with the executive director of Lippo Group, the executive dean of Universitas Pelita Harapan and a business consulting company in Bali.

Dirga holds a Bachelor of Law and Master of Public Notary from Universitas Pelita Harapan, Jakarta. He completed his 1st year of law school twinning program from the University of Reading, United Kingdom, and earned the Certificate of Higher Education in Social Science. He has participated in and won various national and international moot court competitions, notably the Indonesian National Round of the Phillip C. Jessup International Law Moot Court Competition and the Asia Cup International Law Moot Court Competition in Japan. He was also active in various students organizations and activities.

Dirga is well-positioned to advise and assist his clients on a range of corporate and commercial legal matters in various sectors of Indonesian law and to deliver both the legal and practical aspects of an Indonesian issue in a way that both national and international investors will appreciate.

Dirga is a native speaker of Bahasa Indonesia, is fluent in English and speaks conversational Mandarin, Balinese and Javanese.