Alexandru has provided legal assistance before criminal prosecution bodies and courts, both to companies and individuals, in criminal cases involving various accusations put forward by Romanian prosecutorial bodies, especially in crimes against property, tax evasion, corporate governance or corruption. 

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During his practice within the criminal law field, he has often observed how experience acquired in other areas of law allowed him to take a multidisciplinary approach to the client's situation and led to the shaping of an integrated strategy, by anticipating all potentially relevant consequences, with echoes beyond the criminal area. 

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Alexandru was admitted to the Bucharest Bar in 2016, is fluent in English and holds a LL.M degree in Criminal Law.