After finishing school, Solomon joined another of his uncle's business concerns and in 1857 was sent to Mauritius to purchase goods.

[1] At the age of 29 Solomon headed west to Fremantle in Western Australia, arriving on 20 January 1868 aboard Eliza Blanche and initially living in Henry Street.

The weight of conducting business in a depressed economic environment bore on Solomon,[1] and this was not helped by his nephews being active members of Fremantle's Amateur Dramatics Company,[3] performing at the Oddfellows in William Street.

You have taken up time belonging to the firm in Amateur Theatrical matters which, I believe, is acting prejudiciously to the business…"[1] In 1881 he was elected to the Fremantle City Council.

In that year, he transferred to federal politics, winning the Australian House of Representatives seat of Fremantle for the Free Trade Party.