de Rojas was born Jacqueline Yu in Folkestone to a Chinese father and British mother.

[1] Born Jacqueline Yu, is partly of Chinese descent, and said that after her first marriage, she changed her surname to "Jones", to "fit in".

She serves as co-Chair for the Institute of Coding and was awarded an honorary Doctorate of Engineering from the University of Bath in 2020.

[6] In 2017 de Rojas joined Costain Group as non-executive director.

[8] In September 2019, de Rojas was appointed as a non-executive director of FDM Group.