Answer by taking a quote from the following article:

Titu Liviu Maiorescu (Romanian: ['titu majo'resku]; 15 February 1840 - 18 June 1917) was a Romanian literary critic and politician, founder of the Junimea Society. As a literary critic, he was instrumental in the development of Romanian culture in the second half of the 19th century. A member of the Conservative Party, he was Foreign Minister between 1910 and 1914 and Prime Minister of Romania from 1912 to 1913. He represented Romania at the Peace Conference in Bucharest that ended the Second Balkan War.

In the summer of 1862 he was assigned as a substitute lawyer at the Law Court, then he became an attorney. He married his pupil, Clara Kremnitz. In November/December, he became a teacher at the University of Iasi and principal of the Central Gymnasium from the same town.  In 1863 he was assigned to teach a University course of history, on the subject ,,About the History of the Roman Republic from the Introduction of Plebeian Tribunes until the Death of Julius Caesar Especially Regarding the Economical and Political Progress". From February until September he was the Dean of the Philosophy Faculty of the University of Iasi. On 18 September 1863 he was elected as rector of the University of Iasi for a period of four years. In October he was assigned as principal of the School ,,Vasile Lupu" from Iasi. He taught Pedagogy, Romanian Grammar, Psychology and Composition there. For the first time in Romania, he initiated the Pedagogic Practice for pupils and one of these pupils was Ion Creanga.  In 1863 Titu Maiorescu published in Iasi the "Yearbook of the Gymnasium and the Boarding School from Iasi for the School Year 1862-1863"; the yearbook was preceded by his thesis: ,,Why Should the Latin Language be Studied in Gymnasium as Part of the Foundation of Moral Education?" On 28 March Titu Maiorescu's daughter, Livia, was born. She later married Dymsza; she died in 1946. On 8 October Titu Maiorescu is elected to lead the Institute Vasilian from Iasi, which needed to be ,,fundamentally reorganized". In order to complete this mission, commissioned by the Minister of Public Directions from back then, Alexandru Odobescu, he traveled on a documentary journey to Berlin and later he returned to Iasi on 4 January 1864.  Between 1863-1864 Titu Maiorescu taught Philosophy at the Philology University of Iasi.

what was his career?
In the summer of 1862 he was assigned as a substitute lawyer at the Law Court, then he became an attorney.