Alexandre was a foreign correspondent based in Ukraine and Turkey from 2014 to 2016, covering civil unrest abroad before becoming an investigative journalist. He is the director of EIF (Environmental Investigative Forum), a global consortium of environmental investigative journalists and is currently working freelance, as well as a journalism program coordinator for the NGO CiFAR. He has also been a trainer and mentor in environmental and investigative journalism since 2016. 

Alexandre prioritizes taking a step back from the granular day-to-day to analyze the investigative process as a whole. He enjoys teaching and learning about investigative frameworks and techniques and likes to experiment with developing new tools, concepts and replicating investigative models for new regions and/or topics, as part of his work with CiFAR and EIF. He specializes in investigating financial and environmental topics and has been working on an investigative series about the economic sanctions of Egyptian politically exposed persons linked to the Mubarak clan, since 2016. Since 2018, he has been developing the EIF network and got to participate in a wide variety of environmental investigations ranging from deforestation in Tanzania to water pollution and water privatization in Bulgaria, as well as unlawful gas extraction in Tunisia by French-British company Perenco.