In 2013, in order to deepen her knowledge of jurisprudence for running her own business, she received a second degree in law at the Institute of Postgraduate Education of Taras Shevchenko National University of Kyiv.

In 2010, she founded her own company, A7 Group, which until 2018 was engaged in investment consulting, organising more than 100 business conferences around the world and creative branding.

[7] In 2011–2015, she was the vice president of the Association of Investment Professionals, a non-governmental organisation that promotes the programmes of the American CFA Institute in Ukraine.

In 2020, at the invitation of Mikheil Saakashvili, she became the executive director of the Office of Simple Solutions and Results, a non-governmental organisation that developed and implemented reforms in Ukraine.

[3] Under Maria's leadership, the Actions First Foundation NGO has provided volunteer assistance to the Armed Forces of Ukraine worth UAH 29.7 million for more than 20 different units.

[15] On 30 August 2023, Barabash posted on her Facebook page information about a UAH 300 million tender by an enterprise of the Ministry of Youth and Sports to renovate tennis courts during the war.

[17] Maria Barabash first disclosed information about a UAH 5 million tender for advertising and marketing services, which was won by a company linked to Rostyslav Shurma, former deputy head of the Office of the President of Ukraine Andriy Yermak.

[19] On 14 December 2024, Maria Barabash filed a police report against Ihor Lachenkov, whom she accused of making a death threat.

[20] According to Barabash, Lachenkov attacked her on social media after she published two posts harshly criticising Volodymyr Zelenskyy and Andriy Yermak.

[21] She also published screenshots of correspondence with the Joker, where Kravets claims that his Telegram channel is "a mafia, a business that kills and is backed by gangsters".