Our Team

Meet our senior team

We are based in the Republic of Malta, while holding additional offices in Germany, and in the Slovak Republic. ​

Prof. Dr. med. Wolfgang F. Buhre

Dean of the Faculty of Medicine and Health

Prof. Dr. med. W. Buhre became EDU’s second dean of the Faculty of Medicine and Health in May 2021. Prof. Buhre’s medical career spans almost 30 years with a significant focus on research in the areas of cardiovascular anaesthesiology, optimised care pathway for high-risk patients, process optimization in academic medicine, and information technology. As of January 2020, Prof. Buhre has also held the title of director and founding chair for Maastricht University Medical Centre’s (MUMC) Centre for Acute and Critical Care (Netherlands). Prof. Buhre has been a well-regarded professor of anaesthesiology within MUMC’s Department of Anaesthesiology and Pain Medicine since 2013. 

Dr. Jürgen Laartz


He is a retired Senior Partner (Director) with McKinsey & Company, Inc. At the firm, Mr. Laartz lead McKinsey's digital practices in Scandinavia and Germany, and shaped the firm's global knowledge agenda in the field. He initiated research collaborations with Oxford University, MIT, ETH Zurich and HSG Sankt Gallen. Dr. Laartz supported clients in diverse industries on their digital and technology induced business transformation. Before joining McKinsey, Jürgen Laartz studied Chemistry and Philosophy at Tübingen University, followed by Physics and Philosophy at Tübingen and Kiel University, he concluded his academic career at Harvard and Freiburg University, where he gained a PhD degree in Physics.

Holm Keller, MA MPA (Harvard)

Chancellor of EDU and Executive Chairman of kENUP Foundation

In this capacity, he acts as the foundation's Liaison Officer to Digital Education Holdings. Previously, he was Executive Vice President for University Development and Innovation at Leuphana University of Lüneburg. Under his leadership, Leuphana became one of Germany’s top Universities, a well-respected innovation hub to its Region and built an acclaimed new building with Architect Daniel Libeskind. Prior to Leuphana, Holm Keller held top management positions at Bertelsmann in Shanghai, Seoul, Sydney, New York and London. Before, he was Associate Principal with the McKinsey & Company Inc., where he was instrumental for building the Firm’s global Accelerator Practice. Educated in Vienna and at Harvard’s Kennedy School of Government, he started his career as a musical composer and an artistic producer.

Alexander Jahn


Today the market-leading enterprise solution provider for collaborative online learning systems in Europe. As CANDENA's Managing Director Alexander Jahn built the multi-awarded digital education delivery system which is now servicing clients and partners such as OECD, WHO, Deutsche Telekom AG, Goethe Institut, among others. Previously, Alexander Jahn was Vice President Digital Media at Bertelsmann Inc., San Francisco, where he built and led Bertelsmann's Corporate Strategy unit in Silicon Valley. A founder by heart, Alexander started his career building ventures in media printing and distribution. Educated at CAU Kiel and Warwick Business School, UK, Alexander Jahn is currently teaching Managing Innovations at Leuphana Universität Lüneburg and supports startups in Europe and Asia as active early stage advisor.

Alexandra Cosma

Chief Operating Officer

In her role, Alexandra leads the instructional design and learning content production teams. Alexandra focuses on developing novels ways for technology to open access to quality education worldwide and to leverage didactic innovation can empower novel ways of serving learners. Previously, she was active in the 3D-printing and luxury fashion industry, where she co-founded and exited a curated jewellery platform focused on the CEE market. Alexandra studied Internal Business Administration and Corporate Law, followed by Business Consultancy with a specialization in Corporate Finance in Vienna, Austria.

Johannes Wöhler

Chief Technical Officer of Digital Education Holdings

Previously, he worked for SAP as Vice President and Chief of Staff in the SAP HANA Platform and Databases unit. Joining SAP in 1997, he held various roles in development as well as in SAP’s Corporate Strategy Group. Johannes studied Computer Science at the Technical University of Munich.




Previously, Iveta was academic director and later managing director of one of the biggest language schools in Slovakia and worked as teacher, teacher trainer and soft-skills trainer with various language institutions. Iveta studied International Relations at the University of Economics in Bratislava and did a Master Programme at the University of Economics in Vienna. She obtained her PhD Degree in International Business Relations at the University of Economics in Bratislava. She is also a CELTA qualified language instructor.


Chief Medical officer

Dr. Boldt has worked for the University of Cologne as a consultant in Anaesthesia and for the Dean of Student Affairs. He lead Cologne’s SkillsLab, KISS, to become a striking success. During this time he obtained a Master of Medical Education and founded one of the first private Simulation Companies. In the years that followed, he worked for Germany's Chamber of Physicians of North-Rhine, on the development of further education. His fields of knowledge combine medical, educational, business and regulatory frameworks.

Dr. Hana Hybasek Dzurikova, MRCVS

Curriculum Developer

I graduated from the University of Veterinary and Pharmaceutical Sciences in Brno, Czech Republic, in 2013. After obtaining my medical degree, I moved to the UK, where I practiced medicine for almost 5 years with main focus on general surgery. During my clinical years I also worked as a Clinical Coach and I particularly enjoyed this experience. In October 2018 I joined the EDU team, first as an Online Tutor, moving to the Curriculum Team 8 months later. My passion lies in all aspects of medical education and curriculum development. I also have a keen interest in One Medicine and further development of One Health concept and systemic approaches to health and well-being.

Tobias Dietrich

Head of Student Management

After holding the position of COO at Candena GmbH. Before joining Candena, Tobias worked in the M&A department of a leading medical wholesaler and supported company transactions in Europe and in Brazil. He gained practical experience at consultancy firms Roland Berger Strategy Consultants and Siemens Management Consultants. Tobias studied business administration and electrical engineering at the Technical University of Munich (TUM), as well as at Shanghai's Jiao Tong University.


Kari Dreyer

Content Production Lead

Kari works on content strategy and production, helping EDU develop a dynamic, engaging, and scalable student learning experience. Previously, Kari worked in education-focused non-profit and social enterprise settings in Toronto and London, as well as on digital programme development and delivery for organisations such the OECD, WHO, and Bundesagentur für Arbeit. She studied Equity and Philosophy in Toronto, with a focus on gender and mental health.

Mihai Balint


Mihai graduated from the Comenius University in Bratislava in the field of psychology with a focus on counselling and pedagogy. His formal training led him to a career in the corporate environment where he worked as a learning and training facilitator, conducting interactive sessions and workshops aimed to improve the communication skills of his students. He then went on to occupy a supervisory position in the banking sector where he carried out one on one guidance and put together individualized improvement plans. By closely monitoring the employees’ performance, he successfully enhanced their productivity and ability to reach their professional goals.

Valeriia Chelpan

curriculum developer

After graduating from Kyiv National Medical University in Ukraine, Valeriia gained clinical experience as an emergency physician in the Centre of Emergency and Disaster Medicine for 3 years. During her studies as a medical student, she was proactive; volunteering in oncological hospices, participating in different foreign medical and non-medical internships and summer programs, completing various courses, such as life support and ECG diagnostics, as well as attending medical conferences.

Federico Arevalo

Content & curriculum manager

He is specialized in Psychiatry and prior to joining EDU he worked as an adult and child and adolescent psychiatrist and psychotherapist for 8 years in the Spanish public health system and in the private sector. During this time, he taught and mentored medical residents and students. In addition, he attended several courses in psychoanalytical psychotherapy in the US and Spain.

Jennifer Vrouvides

Head of Programme Design

For the past 6 years Jennifer has been developing and facilitating a range of educational programmes ranging from youth-centered justice work, to an accredited Bachelor of Education, to accredited infectious disease courses, and everything in-between.Jennifer graduated with a master's degree in Early Child Studies from Ryerson University (Toronto, Canada) and a bachelor’s in Communication and Cultural Studies from Concordia University (Montreal, Canada). She is most currently wrapping up a certificate in Learn Design with the University of Toronto. She currently lives between Berlin and Malta.

Harun Köktürk


Previous to his time at Candena GmbH and DEH, Harun worked in the multidisciplinary fields of Art and Design in the past years. Mostly focused on the digital side while holding a Graphic Design BA from DEU, Faculty of Fine Arts in Turkey. Experienced in working with many international and personal projects in the fields including UI/UX Design, Branding, Interaction Design, Illustration, Augmented Reality, Editorial Design, Art Direction as well as organizing and taking part of leading Culture & Arts events of Turkey.


Salim Nassim

Software Developer at DEH

With a passion for computer science and user experience. He previously worked as a Technical Project Manager at a Finnish IT service provider specializing in systems architecture, virtualization and project management.

Tibor Sator

Mentor (Community Manager)

Tibor earned his MA in Physical Education and English Language at the Commenius University in Bratislava. After graduation, he became a certified fitness coach and English teacher at private language schools. Tibor also took several courses on mental coaching and peak performance coaching. Before joining Candena he worked as a managing director at a language school.

Sabina Pasic

Instructional Designer

Sabina works on developing engaging learning activities and applying tested instructional design theories, practices and methods. Having extensive training in communicative and active teaching techniques, she is also involved in supporting EDU’s tutors and mentors. Prior to starting at EDU, Sabina taught integration courses for refugees and migrants in Berlin. In addition, she has spent over 15 years working as an instructor, translator, and editor in USA and in Germany. She holds a Ph.D. in Germanics from the University of Washington.

Ifeoma Wulz

Chief Commercial Officer

Prior to joining DEH, Ifeoma worked for global FMCG companies such as Henkel and Amway as well as founding and running a social impact startup with focus in African and European regions. She has held positions in growth marketing, internationalisation and brand marketing including managing brands with over €0.5bn yearly revenue. Ifeoma has over 10 years of professional experience and a Masters’ degree in International Business Management from ESCP-Europe.

Astrid Schwaner

Instructional Designer

As part of the Instructional Design team, Astrid focuses on collecting and evaluating student feedback to support all teams in improving EDU’s student experience. Before joining DEH, Astrid worked in privacy consulting for digital businesses, in publishing, media, and event organisation in Germany and France. Next to her role at EDU, she is writing her doctoral thesis in contemporary literature at the University of Göttingen and teaches at the University of Lüneburg. Astrid studied Literature in Göttingen and Paris.

Brian Webber


Over the last 16 years Brian has taught and trained students from all over the world. Based in Slovakia, he has extensive experience with in-company English language training and examining, particularly in the area of ESP (English for special purposes). Before joining EDU, Brian worked for Essex University in the UK teaching Academic English to master’s degree students from abroad. This involved helping them to improve their academic reading, writing and presentation skills as well as helping them to adjust to the UK higher education environment. He also spent two years teaching technical English in the Middle East and has presented at several TEFL conferences in Slovakia and the Czech Republic. Brian has a master’s degree in Forensic Linguistics as well as the Trinity Dip. TESOL postgraduate teaching qualification. He has a particular interest in developing student-centred and communicative approaches to training online.

Katherine Burns

Instructional Designer

Katherine’s background contains a range of international experience and roles in the fields of education and healthcare. Professionally, she has previously provided consulting, program and assessment development, and curriculum design, most notably with Vanderbilt University Medical Center, Kijabe Hospital and Lwala Community Alliance in Kenya, and through various EdTech companies across China and the US. Katherine holds an M.Ed in International Education Policy & Management from Vanderbilt University’s Peabody College as well as a BA in Biological Sciences from the University of Chicago.

Dr. Timotej Pazitny


Dr. Timotej Pazitny studied general medicine at Masaryk University´s Faculty of Medicine in Brno, Czech republic. He has experience with teaching chemistry, physics, biology, medical chemistry and anatomy, including creating a variety of study materials for these subjects. He is currently working at EDU as an online tutor based in Bratislava, Slovakia.

Eszter Kalóz

Project manager

As part of the Learning Office, Eszter focuses on managing the workflow of EDU’s vocational programmes. The combination of her Sociology degree and her background in tech with the desire to use her knowledge and experience for a greater good has resulted in various experiences ranging from designing educational/ awareness-raising programmes to managing the projects of a social enterprise that aims to empower hearing-impaired professionals to make a successful career in the digital industry. Originally from Budapest, Hungary, currently based in Berlin.

Joanne Siuyung Wong

Content Designer

As a member of the learning team, Joanne designs engaging digital learning materials for EDU students, which navigates, assists and supports them throughout their learning journey. Previously she worked as a screenwriter, journalist and led several non-profit making projects with a focus on cultural and civic education, which cultivates her an acute sensibility in understanding audience and learners’ needs. She studied Economics in the Chinese University of Hong Kong, and is currently based in Berlin.