From October 2008 to November 2009 he was the Ombudsman of the Republic of Moldova at the Center for Human Rights.

[1] For the parliamentary elections of 30 November 2014 from Republic of Moldova Oleg Efrim was not included in the list of PLDM candidates for the post of deputy.

On 10 December 2014, following the validation of the vote, the Leancă Cabinet with Efrim in its composition resigned, observing the technical procedure provided by the law.

[2] On 16 December 2014 Oleg Efrim said he no longer wanted his job, even if he would receive from the party the offer to stay in this chair and in the next government.

[7] Oleg Efrim is married to Violeta Marian (born 23 February 1980), a singer who together with her sister Nona formed the band "Fresh" in the past.