Before joining CITGO, Serra held key roles at Honeywell, SABIC, and several GE divisions, including GE Power Conversion and GE Oil & Gas. Her background covers global controllership, financial planning, and large-scale business transformation. CEO Carlos Jordá noted that her expertise in financial discipline will support the company's long-term operational priorities. Zuklic departs after a six-year tenure, during which he oversaw the finance organization through a significant period for the independent refiner. Serra holds a degree in economics from Universidade Católica Portuguesa and completed several leadership programs throughout her tenure at GE.