[1] He enrolled in the Venetian navy at a very young age, and rose rapidly through the ranks to become commander of his own ship (Governatore di Nave) by 1784, when he participated in Angelo Emo's expeditionary fleet against the Beylik of Tunis.

[1] In late 1786, Condulmer was elected Patron delle Navi (rear admiral) and replaced Emo on station off the Tunisian coast with a small squadron, while the main fleet returned to Corfu.

[3] When Emo died at Malta in 1792, Condulmer, now Almirante (vice admiral) took over command of the Venetian sailing fleet, being awarded the Order of the Golden Stole as well.

[1] In 1796, as Venice was facing a French invasion led by Napoleon, Condulmer was appointed second-in-command to the Provveditore alle Lagune e ai Lidi, charged with defending the Venetian Lagoon; the latter post was initially held by the former admiral Giacomo Nani, who energetically organized the naval defences.

[1] In 1805, Napoleon, now King of Italy, appointed him a gentleman-attendant to Princess Augusta of Bavaria, and created him a count, senator, and a knight in the Order of the Iron Crown.