Education - Postdoc: Postdoc in Business and Organizations Administration (including sustainability, financial economics, law, and technological aspects) (Business Administration, N.K.U.A.) Ph.D.s: 1. Ph.D. Economics (including law, and technological aspects) ([N.K.U.A. (National and Kapodistrian University of Athens)] 2. Ph.D. cand. ESG-AI Management of Energy Systems: Optical Networks, Information Engineering, and Programming Technologies [University of West Attica (UoWA)] Masters: 1. M.Sc. Physics and Modern Technologies [N.T.U.A. (National and Technical University of Athens)] 2. M.Sc. Philosophy of Economics (MPhil) [N.K.U.A. (National and Kapodistrian University of Athens)] 3. M.Sc. Mathematical Modeling and Applied Technologies [N.T.U.A. (National and Technical University of Athens)] 4. M.Sc. Public Law and Public Administration [N.K.U.A. (National and Kapodistrian University of Athens)] 5. M.Sc. Electrical and Computer Engineer integrated with a bachelor's 5-year degree) (University of Patras) 6. M.Sc. Advanced Computing Systems Technologies [U.N.I.W.A. (University of West Attica)] 7. M.Sc. Law of Arbitration [Democritus University of Thrace - (D.U.Th.)] 8. M.Sc. Management and Transportation of Petroleum, Natural Gas and Hydrogen (MOGMAT) [University of Western Macedonia (Greece) & Azerbaijan State University of Economics (Baku, Azerbaijan)] Bachelors: 1. B.Sc. Electrical and Computer Engineer (University of Patras) 2. B.Sc. Economics [N.K.U.A. (National and Kapodistrian University of Athens)] 3. B.Sc. Law [N.K.U.A. (National and Kapodistrian University of Athens)] 4. B.Sc. Political Sciences and Public Administration [N.K.U.A. (National and Kapodistrian University of Athens)] 5. B.Sc. History and Philosophy of Science [N.K.U.A. (National and Kapodistrian University of Athens)] 6. B.Sc. Sociology [N.K.U.A. (National and Kapodistrian University of Athens)] 7. B.Sc. cand. Psychology (Guglielmo Marconi University, Rome) 8. B.Sc. cand. Studies in Hellenic Culture - Philology (Open University of Cyprus) ---------------------------- Profession: Assistant Professor/Visiting Professor/Lawyer Prior working experience: 9 years of experience as an engineer Current working experience: 11 years as a lawyer ---------------------------- Links: https://challoumis.wixsite.com/website https://drive.google.com/file/d/1wShGDoGIg1tewj5Pb5VZymloq4cz7AYF/view?usp=drive_link https://www.academia.edu/?from_navbar=true&trigger=nav https://www.researchgate.net/profile/Constantinos-Challoumis-Konstantinos-Challoumes https://www.preprints.org/user/home/submissions/details?hashkey=b376daf709ea6e852307f2c1ff3e478d&status=online https://scholar.google.com/citations?user=A13XezgAAAAJ&hl=en https://www.scopus.com/authid/detail.uri?authorId=57225149197 https://orcid.org/0000-0002-7436-0506 https://www.webofscience.com/wos/author/record/AET-0587-2022 https://www.youtube.com/@constantinoschalloumis ----------------------------------------------------------------------------------