Before focusing on training at both national and European level, Dr Simina had a career in law enforcement which took him from migration policing in units on the western border of Romania to the corridors and halls of the Romanian Parliament and the offices of the top management of the Ministry of Interior HQ in Bucharest, as well to the office of the Romanian Ambassadors in Japan and China, also representing Romania as the top diplomat of his country in the economic capital of P.R. China - Shanghai. After six year as advisor on legislative matters and international relations to a secretary of state/deputy minister of the Romanian Ministry of Interior, he spent two years as home affairs attaché - police and migration liaison officer in Tokyo. After this diplomatic experience, Dr Simina embraced the crisis management environment in the position of strategic planner (capability development, strategic plans, negotiations, forces deployment to external missions, in-house training) and later on moved to Brussels to work in CSDP training within the EU crisis management structures, as seconded national expert (2015-2019).  Between December 2020 and August 2022, he was deployed as HR Training Officer within the EU Advisory Mission (EUAM) Ukraine in Kiev (also working in Orhei, Rep. of Moldova, and then in Rzeszów, Poland, following the evacuation of the Missions HQ in the aftermath of the war in Ukraine). Between August 2022 and June 2024, he has been seconded to the Romanian Ministry of Foreign Affairs as Consul at the Consulate General of Romania in Shanghai, P.R. China, where he was in charge with the management of the diplomatic office, as Acting Consul General of Romania (Gerant intérimaire) from 21 September 2022 to 10 December 2023.

He has been exposed to professional experiences in multinational and multicultural environments, working both inside the European Union (Romania, France, Belgium) and in Third Countries (Japan, Ukraine, P.R. China), facing crisis management situations in real time, such as the evacuation of ”non-essential” Embassy's staff and their family members via Seoul and Istanbul, in the aftermath of the 2011 Tōhoku earthquake and tsunami followed by the explosions at Fukushima Daiichi nuclear plant, or the evacuation of EU Advisory Mission in Ukraine's international staff (and their respective family members) in February 2022, precursor to the start of the war in Ukraine, and again when he ran a diplomatic office during specific post-pandemic lockdown restictions in Shanghai, between August 2022 and January 2023. 

Dr Simina is Law graduate (Law Faculty, Police Academy, Bucharest (1998), holds a M.A. in Advanced European Studies (The School of Advanced Comparative European Studies - SISEC, West University of Timișoara (2005), has been an Erasmus student (Université de Science et Technologies de Lille, 2002) and has earned his PhD in Economics from the West University of Timișoara (2012) with a thesis analysing migration and the labour mobility at EU level, with focus on the socio-economic consequences of the illegal migration. Among the various training he attended, he graduated the first series of Strategic Management of Home Affairs (post-graduate course) at the Romanian National College of Home Affairs (Bucharest, 2008-2009), the 7th CSDP High Level Course 2011-2012 'Konrad Adenauer' at the European Security and Defence College (Brussels, Berlin, Paris and Sofia, 2011-2012), the Senior Police Officer Planning and Command Course for Crisis Management (52/2013) with CEPOL and CoESPU (Vicenza, 2013), the Post-Conflict Reconstruction and Stabilisation course “Cooperation and coordination in post-conflict environments” of the Romanian Ministry of Foreign Affairs (Bucharest, 2014), the Higher Command Crisis Respond Operations Course at the Crisis Management and Disaster Response Centre of Excellence (Sofia, 2015), the Advanced train the trainer for Learning and Development resource persons, European Commission (Brussels, 2016), the Peace Support Operations Course of Crisis Management and Multinational Operation Department, UNAP (Bucharest, 2020) and European Project Management with Pixel Associatione Culturale (Kiev, online, 2021). While the Romanian Ministry of Internal Affairs has awarded Dr Simina with the Honorary Badges ”In the Service of the Fatherland” for 15, 20 and respectively 25 years of service, he is also the recipient of the European Security and Defence (ESDC) Medal (2 Years) and of the Common Security and Defence Policy (CSDP) Service Medal - EUAM Ukraine. After 32 years of military and police active service, Dr Simina has been included in the reserve forces of the Romanian Ministry of Internal Affairs with the rank of Colonel (Police) / OF-5 equivalent, as of 1 August 2026.

Dr Simina is one of the founding members of the CNAI Foundation and secretary of the Association Alumni CESD ASBL  (since 2017).