With a career spanning government, the non-profit sector, and law, Ms. Foster has deep expertise in the economic and political empowerment of women, and how to effectively integrate a gender-focused approach into foreign policy.

She is a co-founder of Smash Strategies, which provides strategic advice to corporations, institutions, and philanthropists to ensure that their investments in women and girls are effective and transformational. In 2021 through early 2023, Foster returned to the U.S. Department of State focusing on Afghan relocation, with a mandate to prioritize the needs of women and girls. She had previously served at the U.S. Department of State from 2012-2017 as a Senior Advisor/Counselor in the Secretary's Office of Global Women's Issues and at the US Embassy in Kabul, Afghanistan where she focused on women and civil society. Foster has also worked in private law practice, as a Chief of Staff to United States Senators Barbara Mikulski (D-MD) and Chris Dodd (D-CT), and in senior management positions in the non-profit sector. She is a lawyer by training.  

Her first book, Take Action: Fighting for Women & Girls was published in October 2021. Her second book, co-authored with Susan Markham, Feminist Foreign Policy in Theory and Practice, was published in September 2023.

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