After graduating from law school in 2011, Mr. Choem Khieng interned and was trained as legal assistant with KNC until 2016. In 2017, he was admitted to the Bar of Association of Cambodia and continue practicing he skill with KNC as an attorney at law.

Mr. Choem Khieng has worked for non-governmental organization and served private companies in respect to various sectors including general legal complaince, industry and union laws and regulations, alternative dispute resolution, civil and criminal litigation. Mr. Choem Khieng speaks Khmer and English.