[2] Moreira worked as a management consultant for Juárez & Associates and Arthur D. Little for ten years, and then for the Spanish aid organisation Ayuda en Acción, rising to the position of director general.

[9][10] In 2019 she argued that citizen's rights and democratic institutions were threatened by the trend for more authoritarian and populist regimes across the world which should be resisted by greater checks and balances.

The investigation conducted by the law firm Taylor Wessing documented individual incidents "in which the values/principles of transparency and accountability were not ensured entirely, and one case that might qualify as harassment at the workplace.

"[13] The investigation concluded, however, that "these behaviours did not constitute a systematical breach of the TI-S Code of Conduct or TI values and its guiding principles, but were related to lack of open communication.

[4][14] It was claimed that Moreira's mandate and efforts to restructure the Transparency International Secretariat, and her own accusations of bullying made against Board members, upset entrenched interests at the organisation and ultimately led to her dismissal.