Upon graduation Comín applied for entry into Cuerpo de Archiveros, Bibliotecarios y Arqueólogos, a state-controlled corporation entrusted with protection of national cultural heritage; following the nationwide contest process he emerged victorious as the 3rd best among 45 successful candidates nationwide and in 1915 was admitted to the corps.
He was assigned to Biblioteca Universidaria de Zaragoza with the annual salary of 3,000 pesetas.
During the next few years Comín worked as an archivist in the university and elsewhere, taking care of various archival projects in Aragón and beyond: he was noted as appointed in 1919 to Archivo de Hacienda de Zamora and in 1921 nominated director of the local Teruel archive.
It is not clear how long he carried on with the librarian and archivist tasks; none of the contemporary sources consulted referred to him as such after the mid-1920s.
However, he remained member of the corps until 1936; in September the appropriate ministry of the Republican government relegated Comín from Cuerpo de Archiveros, Bibliotecarios y Arqueólogos.

Some time during the last years of the Restoration Comín commenced working at Facultad de Filosofía y Letras at the Zaragoza University, where at that time his father was member of the academic Junta de Gobierno.
In 1920, apart from having carrying on with his librarian duties, he was also noted as professor auxiliar at the faculty of philosophy and letters.
An apparently temporary assignment was prolonged in 1924.
He signed a new contract for the following 4 years, though there was no professional progress recorded; he remained professor auxiliar temporal.
It is not clear what his exact role was and in particular, whether he assumed senior teaching duties or rather performed junior academic roles; he is listed as auxiliary member of the Filosofía y Letras faculty staff in the late 1920s and in the early 1930s.

Comín's position in the academic realm of the Republic is uncertain; it is not clear whether he continued working at the University, either as a librarian or as a scholar.
Occasionally he was referred to as "catedrático"; a present-day scholar names him "Professor Jesús Comín" and even claims he chaired a faculty, but points to Law instead of Letters.
The official Cortes service referred to him as "abogado" rather than as a scholar.
None of the sources consulted lists any Comín's scholarly works.
A rather hagiographical and outdated encyclopedic entry notes his extensive culture and asserts that he specialized in political, philosophical, literary and historical studies.
A monograph dedicated to Zaragoza University staff supporting the Nationalist rebels of 1936 does not list Comín at all.
Upon graduation Comín applied for entry into Cuerpo de Archiveros, Bibliotecarios y Arqueólogos, a state-controlled corporation entrusted with protection of national cultural heritage; following the nationwide contest process he emerged victorious as the 3rd best among 45 successful candidates nationwide and in 1915 was admitted to the corps. He was assigned to Biblioteca Universidaria de Zaragoza with the annual salary of 3,000 pesetas. During the next few years Comín worked as an archivist in the university and elsewhere, taking care of various archival projects in Aragón and beyond: he was noted as appointed in 1919 to Archivo de Hacienda de Zamora and in 1921 nominated director of the local Teruel archive. It is not clear how long he carried on with the librarian and archivist tasks; none of the contemporary sources consulted referred to him as such after the mid-1920s. However, he remained member of the corps until 1936; in September the appropriate ministry of the Republican government relegated Comín from Cuerpo de Archiveros, Bibliotecarios y Arqueólogos.
Some time during the last years of the Restoration Comín commenced working at Facultad de Filosofía y Letras at the Zaragoza University, where at that time his father was member of the academic Junta de Gobierno. In 1920, apart from having carrying on with his librarian duties, he was also noted as professor auxiliar at the faculty of philosophy and letters. An apparently temporary assignment was prolonged in 1924. He signed a new contract for the following 4 years, though there was no professional progress recorded; he remained professor auxiliar temporal. It is not clear what his exact role was and in particular, whether he assumed senior teaching duties or rather performed junior academic roles; he is listed as auxiliary member of the Filosofía y Letras faculty staff in the late 1920s and in the early 1930s.
Comín's position in the academic realm of the Republic is uncertain; it is not clear whether he continued working at the University, either as a librarian or as a scholar. Occasionally he was referred to as "catedrático"; a present-day scholar names him "Professor Jesús Comín" and even claims he chaired a faculty, but points to Law instead of Letters. The official Cortes service referred to him as "abogado" rather than as a scholar. None of the sources consulted lists any Comín's scholarly works. A rather hagiographical and outdated encyclopedic entry notes his extensive culture and asserts that he specialized in political, philosophical, literary and historical studies. A monograph dedicated to Zaragoza University staff supporting the Nationalist rebels of 1936 does not list Comín at all.
Jesús Comín Sagüés