She is based at the British embassy in Mogadishu, but no consular services were offered there as of 2022.

[3] In 2014–15 she led the United Kingdom's response to the Ebola outbreak in Africa as their Director of Operations.

[1] Foster became the British Ambassador to Somalia taking over from Ben Fender; the changeover was in February 2021[3] and the job was seen as "sensitive" given the disputes in the region.

[4] Foster was the ambassador based in Mogadishu but there are no consular services.

[5] At the end of 2021, she was having discussions with Galmudug President Ahmed Abdikadir Qoorqoor at a time when the national elections were delayed and the American government was threatening to retaliate against anyone who was preventing the country's transition to peace.