Lajous Vargas is the past President of the International Women's Forum, one of the foremost global women's leaders' organizations, providing access, information, leadership exchange and development for women on issues of international concern. IWF has more than 3500 members in North America, Latin America, the Caribbean, Asia, the Pacific Basin, Europe and the Middle East. Lajous Vargas is the first non-US President of the IWF.

Previously she was a Partner of Russell Reynolds Associates, Inc., one of the leading global executive recruiting firms, with 35 offices worldwide. Prior to working at Russell Reynolds, Lajous Vargas served two terms in the Mexican House of Representatives and one term in the Mexican Senate. While in the House and Senate, she was President of the Mexico City Legislative Committee. She has also served as Executive Vice President of Nucleo Radio Mil radio network and was an associate with McKinsey & Co., the prestigious executive management consulting firm.