He started his studies at the School of Applied Arts in 1917 and attended the Academy of Fine Arts as a student of István Réti between 1918 and 1922. He regularly produced drawings back at secondary school; he was the creator of the front page of Endre Ady's last volume of poems titled 'A halottak élén' (In the Frontline of the Dead). In 1918 he drew a poster with the text 'No! No! Never!' to the order of the National Propaganda Committee. This was followed by a series of other orders, including those of 1919, the time of the Hungarian Soviet Republic and thereafter, as well. From 1921, upon Count Gyula Batthyány's invitation, he worked in the company of Antal Deli, Lajos Pándy and Alajos Parobek in Bicske; his picture entitled 'St. Jerome', which he painted there, earned him Lajos Ernst's Prize. In 1922 he put on show his pictures as a member of the 'Bicske Colony of Artists' in the National Salon and in the same year he exhibited a collection of considerable size in the Ernst Museum. With his picture entitled 'Danae' he won the Nemes Marcell-Scholarship of the Szinyei Merse Pál Society, that permitted him to travel to Paris at the end of 1922. He attended the Julian Academy there and painted in the Barbizon as well.

In 1923 and 1924 he had exhibitions in the Paris Salon and at the end of 1924 he returned to Budapest. In 1925 he participated in the first exhibition of the prized artists of the Szinyei Society. In 1926 he painted in Szentendre together with several of his fellow-painters; in 1928 he was among the founding members of the Society of Szentendre Painters. In the spring of 1927 Jeges exhibited his works as a member of the Paál László Society and was present at the first exhibition of the Munkácsy Guild organised in 1928. From 1931 he worked as a state-sponsored scholar in Rome, and subsequently he worked on ecclesiastical assignments: he painted primarily church murals. In 1938 his works appeared in the Hungarian Pavilion of the Venetian Biennial. He was granted the Esterházy Historical Prize in 1941 and the ENIT-Prize in 1943.