Following this, she was appointed Head of Division of the Ministry of Development and left in 1986 to take up a new position as Chief Negotiator at property management company, Aker Eiendom AS.

However, just two months after her appointment, Faremo was forced to resign from the cabinet following the Berge Furre affair, which had revealed that the Norwegian Police Security Service were illegally spying on Socialist Left Party politician, Berge Furre, while he was a member of the Lund Commission – a group appointed to investigate allegations of illegal surveillance of Norwegian citizens.

[7] Facing mounting pressure in the aftermath of the 2011 Norway attacks over the state of the police and security, the incumbent Justice Minister, Knut Storberget, announced his resignation.

On 7 May 2014, United Nations Secretary-General Ban Ki-moon announced the appointment of Faremo as the Under-Secretary-General and new Executive Director of the UNOPS.

Speaking about her goals, Faremo said: "I think UNOPS holds experiences and has made great achievements that should be better communicated, so I’ve taken it on as an important task for me to share more of that.

"[10] Faremo implemented changes to UNOPS that made it run more "like a business" and less like a bureaucratic agency dedicated to ensuring contracting rules were followed.

She wrote in 2019 that under her "more than 1,200 pages of rules went into the trash" and that she was "rewriting our operational principles" in the name of running UNOPS more like a fast and agile business.

Another initiative personally supported by Faremo, the Sustainable Investments in Infrastructure and Innovation or S3i for short, ran into major problems with its money being spent ineffectively on contractors who failed to deliver the claimed work, yet continued to be paid and have their contracts renewed.

[12][13] Faremo's deputy Vitaly Vanshelboim was placed on executive leave in December 2021 as the United Nations Office of Internal Oversight Services investigated the allegations and audited the matter.

She began singing from a young age and is skilled in a variety of genres including pop, rock, musicals and cabarets.