Mando is a barrister and solicitor (Greece, 2006 – present) (currently non-practicing).
She is also the legal advisor for Binary, a non-profit organisation on digital rights in Greece.
Mando has advised the Ministry of Foreign Affairs of the Netherlands, and the Ministry of Interior of Qatar on Internet regulation and policy. She has given expert input to the UN Special Rapporteur on Privacy regarding the draft legal instrument on government surveillance and privacy and provided written comments. She was a participant to the Research Group on Human Rights Protocols Considerations (Internet Research Task Force) drafting human rights related guidelines to be considered by the engineering community when creating and updating Internet standards.