Marques currently serves as the fiscal officer of Nassau County, New York and as an adjunct professor at Molloy College.

and M.B.A. degrees in finance from the Frank G. Zarb School of Business at Hofstra University, where he was a member of the Phi Eta Sigma honor society and the Hofstra University Honors College.

[1] Marques started his career in government in 2010 as a research analyst, before being appointed Deputy Comptroller of Nassau County in 2015.

[4] The event has since been held annually (renamed the New York Portugal Day Gala).

[9] On February 21, 2019, Marques was elected president of the National Organization of Portuguese Americans.