Kilgallon is a former manager of listed travel agent On The Beach, which changed private equity hands in 2013 followed by a public listing in 2015.
He was appointed to help grow the company following its capital injection from private equity house Beech Tree Private Equity (BTPE) in March.
Fluent Money has plans to become one of the main players in the specialist lending market and recently said it was in the process of bringing new products to market.
The firm bolstered its team by hiring seven staff – including four advisers – in June. In July it launched Fluent for Advisers, a specialist brand to take referrals from advisers and broker networks.
It said it had wanted to separate the company’s different business channels following the Mortgage Credit Directive (MCD), which had opened up the secondaries market, effectively handing mortgages and seconds equal regulatory status.
Chief executive Kevin Hindley said: “Mark’s arrival is significant as Fluent Money sets its sights on expanding its offering to intermediaries. Working on the opportunities that have presented themselves in the wake of the inward investment from BTPE, securing the services of a financial director of Mark’s calibre and experience will ensure that we build on the soundest of financial foundations.”