He entered Cuban diplomatic service in 1902.
In 1934 he became ambassador of Cuba to the United States. As a Cuban ambassador in 1936 he created an insatiable demand for North American products. The Cuban "will not resign himself" suggested Jauregui, "to surrender the comforts and material pleasures of more enjoyable life of higher standard." Lack of prosperity "prevents him from satisfying the desire for a better life; but the desire is there just the same, alive, imperious, latent, under constant strain, awaiting the opportunity to be satisfied."