Lumley-Savile served as Attaché at the British embassies in Berlin from 1842 to 1849, in St Petersburg from 1849 to 1854 and as Secretary of Legation in Washington from 1854 to 1858, in Madrid from 1858 to 1860 and in Constantinople in 1860. The latter year, he was appointed Secretary to the Embassy in St Petersburg, in which post he remained until 1868.
From 1842 to 1849, Lumley-Savile held the position of Attaché at the British embassies in Berlin. He then served as Attaché in St Petersburg from 1849 to 1854 and Secretary of Legation in Washington from 1854 to 1858. From 1858 to 1860, he was in Madrid, and in 1860, he served as Attaché in Constantinople. The following year, he became the Secretary to the Embassy in St Petersburg, a position he held until 1868.