Throughout the course of his career as the owner and director of Tipografia Rangel, Rangel was responsible for the publication of thousands of books important to Portuguese literature and Goan literature and publication of Portuguese newspaper O Independente and the archives of Goa Medical College (then known as the Arquivos da Escola Medico Cirurgica de Nova Goa) for which he was the editor.

[3] Jaime excelled in languages and was a polyglot highly proficient in English, Konkani, Portuguese, Latin and French.

The publication house was one of the largest in Goa publishing a total of 17 periodicals at the time including O Independente and O Indespensavel that were also created and edited by the Rangel family.

In 1926 Tipografia Rangel published Hanv Saiba Poltodi Vetam by Carlos Eugenio Ferreira, which would become one of the most famous Dekhni songs in Goa and be adapted by Raj Kapoor as Na mangoon sona chandi in his Hindi movie Bobby.

In this position he attended Asia International Labour Conferences in Bandung in 1950, Chennai in 1952, Tokyo in 1953, Bangkok in 1954, Rangoon in 1955 and Delhi in 1957 where he received an audience with the first President of India, Dr Rajendra Prasad.

[8] He is well known for his work on medical records during the colonial period in India, which have been used subsequently as references for multiple publications about the History of Medicine in that region.