HEICO Corporation, an aerospace manufacturer, has appointed Steven Walker as chief accounting officer in addition to his current duties as assistant treasurer. Additionally, Carlos Macau has been appointed treasurer and executive vice president. Both appointments are effective June 1.

Macau assumes his position from Thomas Irwin, who will be promoted to senior executive vice president. With 22 years of financial and accounting experience, Macau joins HEICO from Deloitte & Touche where he served as audit partner. 

Walker has served as corporate controller and assistant treasurer at HEICO since 2002. Previously, he had various financial positions at Royal Caribbean Cruises and AMR Corporation. He began his career at Ernst & Young.