A dynamic and exciting employer
The key to our success are talented and motivated people – while being committed to meet the highest professional standards we attach great importance to the pleasure of teaming up with gifted and cheerful colleagues.
Team
Dr. Abhishek SaxenaDr. Abhishek Saxena
+41 44 435 10 10abhishek.saxena@d-one.aiAbhishek holds a PhD in Mechanical Engineering from ETH Zurich and a MSc in Nuclear Engineering from ETH ZurichEPF Lausanne. During his studies he received the Excellence Scholarship and the Outstanding Young Academics award from the Swiss Government. Abhishek is an experienced engineering professional with extended experience as a Researcher in the fields of Algorithm development, Data Analytics and Mathematical Modelling. Prior to joining D ONE, he worked as a Senior Simulation & Modelling Engineer, in ams Osram AG. Abhishek has been with the team since 2022.
Agata Lewandowska
+41 44 435 10 10agata.lewandowska@d-one.aiAgata holds an M.Sc. in Econometrics & Information Technology and a B.Sc. in Management from Poznań University of Economics & Business. Before joining D ONE Agata worked as a Data Scientist in Roche for almost 4 years, mainly in projects around clinical trials. Her areas of expertise are data engineering and data science. Agata has been with the team since 2022.
Akis Gazepidis
+41 44 435 10 10akis.gazepidis@d-one.aiAkis received his BSc in Statistics from the University of Piraeus and his MSc in Data Science from the American College of Greece. He is an experienced Data Scientist with experience in information extraction techniques used on documents, scraping data through internet and training of machine learning models. Akis has been with the team since 2023.
Alexandra Kaparou
+41 44 435 10 10alexandra.kaparou@d-one.aiAlexandra graduated from The National Technical University of Athens with a MEng in Electrical and Computer Engineering. As a Data Engineer at a global consulting firm, she has worked in different sectors implementing technologies to deliver impactful data-driven solutions, enhancing decision-making and operational efficiency for clients. Alexandra has been with the team since 2024.
Alexandra Studer
+41 44 435 10 85alexandra.studer@d-one.aiAlexandra received her M.Sc. in Mechanical Engineering from the Swiss Federal Institute of Technology (ETH Zurich) in 2016. Her areas of expertise are data analytics and visualization. Alexandra is with the team since 2017.
Alexandros Chantzaras
+41 44 435 10 10alexandros.chantzaras@d-one.aiAlex studied Economics at the University of Piraeus and holds a Master in Data Science. Since his graduation he has gathered valuable experience in sectors such as banking, construction, facility management, and energy.
Alexandros Polichronopoulos
+41 44 435 10 10alexandros.polichronopoulos@d-one.aiAlexandros received his BSc in Computer Science from the Athens University of Economics and Business. He has significant experience as a S/W Engineer. Before joining D ONE he worked as a Lead Engineer in a global B2B solution provider corporation. Alexandros has been with the team since 2022.
Alexander Donders
+41 44 435 10 10alexander.donders@d-one.aiAlexander is a CFA Charterholder (Chartered Financial Analyst) and holds a B.Sc. in Business Administration and Business Information Technology from the Lucerne University of Applied Sciences and Arts. Prior to joining our team, he was leading two teams at the Swiss Stock Exchange (SIX) responsible for analytics architecture and data product delivery. Alexander has been with the team since 2024.
Alexis Zamanis
+41 44 435 10 10alexis.zamanis@d-one.aiAlexis is a MEng graduate in Electrical and Computer Engineering from the National Technical University of Athens. Prior to joining D ONE, he served as a DevOps engineer at a leading MLOps company specialising in production-ready Kubeflow solutions. During his tenure, he automated Kubernetes operations across multiple hyperscalers, facilitating seamless machine learning workflows on the cloud. Alexis has been with the team since 2023.
Ali Ander
+41 44 435 10 10ali.ander@d-one.aiAli graduated with a MSc in Electrical Engineering and Information Technology from ETH Zurich. Before joining D ONE he worked as a Data Scientist specialising in machine learning for smart wearables at an ETH spin-off. Ali has been with the team since 2024.
Aliki Ntouzgou
+41 44 435 10 10aliki.douzgou@d-one.aiAliki has a B.A. in Management Science and Technology from the Athens University of Economics and Business. She has a proven track record in developing and optimizing end-to end Power BI reports, and has played a key role in research and competitive analysis projects, delivering impactful solutions. Aliki is in the team since 2024.
Dr. Andrei Dmitrenko
+41 44 435 10 10andrei.dmitrenko@d-one.aiAndrei is an applied mathematician by training who received a Master in bioinformatics. Andrei worked as a research engineer in academia, later as a systems biology team lead in a biotechnology company. Before joining D ONE, he did a PhD at ETH Zürich developing AI methods for reproducible high-throughput metabolomics. Andrei held multiple workshops on business applications of GenAI, presented at top conferences, such as NeurIPS and BioTechX, and co-authored more than 15 scientific publications. He has been with the team since 2022.
Andrey Sluzhivoy
+41 44 435 10 99andrey.sluzhivoy@d-one.aiAndrey holds a diploma with honors in Mathematics and Computer Science from the University of Duisburg-Essen in Germany. His areas of expertise are analytics, data warehousing, and dashboard development. Andrey has been with the team since 2016.
Athanasia Kolokytha
+41 44 435 10 10athanasia.kolokytha@d-one.aiAthanasia holds a B.Sc. in Informatics from the Athens University of Economics and Business. She has solid experience in Business Intelligence, having worked with advanced BI tools and technologies. Before joining our team in 2024, she optimized data processes and implemented ETL solutions in previous roles.
Dr. Axel Obermeier
+41 44 435 10 09axel.obermeier@d-one.aiAxel holds an M.Sc. in Technical Mathematics from Vienna University of Technology and a Ph.D. in Applied Mathematics from the Swiss Federal Institute of Technology (ETH Zurich). During his Ph.D., he developed the first algorithm with optimal complexity for non-elliptic problems. His areas of expertise are mathematical optimization, customer analytics and machine learning. Axel has been with the team since 2017.
Dr. Bernhard Vennemann
+41 44 435 10 10bernhard.vennemann@d-one.aiBernhard received his Doctor of Science in 2019 and holds a M.Sc. and B.Sc. in Mechanical Engineering from the Swiss Federal Institute of Technology (ETH Zurich). Before joining D ONE, Bernhard worked as a University lecturer for machine learning at ETH Zurich. Bernhard has been with the team since 2021.
Dr. Carlos Parés-Pulido
+41 44 435 10 10carlos.parespulido@d-one.aiCarlos comes from a dual background in Mathematics and Computer Science. In 2021 he graduated with a PhD in Applied Mathematics from ETH Zurich. His areas of expertise are programming, statistical data analysis and development of high-performance numerical methods. He has been a lecturer for ETH Zurich. Carlos has been with the team since 2022.
Dr. Charlotte Cabane
+41 44 435 10 96charlotte.cabane@d-one.aiCharlotte graduated with a Ph.D. in economics from University Paris 1 Panthéon-Sorbonne in 2011 and she also holds a master's degree in economics from Paris School of Economics. Afterwards she served as a postdoctoral researcher and then assistant professor at the University of St. Gallen, Switzerland. Her areas of expertise are data visualization and analytics. Charlotte has been with the team since 2016.
Christian Erni
+41 44 435 10 91christian.erni@d-one.aiChristian is a pioneer of new media communication and has a vast experience at the intersection of information and design. Before joining D ONE, he was Creative Director at international agencies and lecturer for visual design at Zurich University of the Arts. Christian presides the Best of Swiss Web jury and was juror at the New York Festivals until 2012. Christian is our communication director and is heading our data experience practice.
Christine Tsakanika
+41 44 435 10 10christine.tsakanika@d-one.aiChristine holds an M.Sc. in Electrical & Computer Engineering from the National & Technical University of Athens. Before joining D ONE, she worked as a Software Developer contributing to corporations that provide software solutions for large clients in the banking sector, Greek public services, and energy providers.
Christos Gkatzis
+41 44 435 10 10christos.gkatzis@d-one.aiChristos studied Electrical and Computer Engineering at the National Technical University of Athens. Prior to joining the D ONE Team, he was working as a junior software developer at one of the world's leading Airline Software Suppliers. He has been with the team since 2024.
Christos Spiropoulos
+41 44 435 10 10christos.spiropoulos@d-one.aiChristos received his MSc in Data Science and Machine Learning from the National Technical University of Athens. He also holds degrees in Applied Mathematical Sciences from the same institution. Before joining the team, Christos worked as a Data Scientist for the National Bank of Greece. He has been with the team sine 2023.
Clara Diederichsen
+41 44 435 10 10clara.diederichsen@d-one.aiClara holds a Master of Science in Management, Technology and Economics from ETH Zurich and a Bachelor of Engineering (Hons): Electrical Engineering and Computer Systems from Monash University, Australia. During her Bachelor thesis she developed a real time 3D visualisation tool for surgical implant placement. Prior to joining D ONE, she worked as a Data Scientist at KPMG. Clara has been with the team since 2024.
Clément François
+41 44 435 10 10clement.francois@d-one.aiClément received his M.Sc. and B.Sc. in Computer Science from University of Basel. Before joining D ONE, Clément worked as a business analyst at Mitwill Textiles Europe. He has been with the team since 2021.
Darya Bomberger
+41 44 435 10 10darya.bomberger@d-one.aiDarya holds an MBA from the Liverpool John Moores University, UK and an M.Eng in International Project Management from the University of Applied Sciences, DE. She has successfully completed a Data Science Bootcamp in SIT Academy, CH. Before joining D ONE, she worked as a Project Lead/Head of Digitalization in Drees & Sommer Schweiz AG. Darya has been with the team since 2022.
Diana Mitache
+41 44 435 10 10diana.mitache@d-one.aiDiana holds a M.Sc. in Managing Information and Business Technology from Loughborough University, UK and is currently on track to complete a M.Sc. in Computer Science and Artificial Intelligence from the University of York, UK. Before joining D ONE, she worked as a Lead Tableau Developer at Credit Suisse in Zurich. Diana has been with the team since 2021.
Dr. Domante Gerciene
+41 44 435 10 10domante.gerciene@d-one.aiDomante received a PhD in Sociology from the University of Oxford in 2021. She also holds an MSc in Sociology from the University of Oxford where she was a Trinity-Wordsworth scholar. She completed a BA in Sociology at Sciences Po Paris and spent an academic exchange year focusing on computational methods at the University of California, Berkeley. Domante has been with the team since 2022.
Dominique Im Obersteg
+41 44 435 10 10dominique.imobersteg@d-one.aiDominique received his MSc in Computer Science from the Swiss Federal Institute of Technology (ETH Zurich). Before joining D ONE he held various management positions in Avaloq consulting and was managing partner of a consulting company for financial institutions. Dominique joined the team in 2021 and is managing director and leading one of the business units of D ONE.
Elena Pateraki
+41 44 435 10 10elena.pateraki@d-one.aiElena holds a BA in Statistics from the Athens University of Economics and Business. Before joining D ONE, Elena had been working for 4 years as a Data Analyst, participating in various projects in a wide range of industries. Her areas of expertise are Data Engineering & Visualization. Elena has been with the team since 2022.
Emmanouela Oikonomopoulou
+41 44 435 10 10emmanouela.oikonomopoulou@d-one.aiEmmanouela obtained her MEng in Electrical and Computer Engineering as well as her M.Sc. in Data Driven Computing and Decision Making from the University of Patras. She began her career as Data Scientist and Engineer at a global reputable consulting firm with a strong focus on machine learning, deep learning, and data-driven decision-making. Emmanouela has been with the team since 2024.
Eleni Akrivou
+41 44 435 10 10eleni.akrivou@d-one.aiEleni Akrivou holds a Master's degree in Applied Mathematics from the National and Kapodistrian University of Athens, and a Bachelor's degree in Mathematics from the University of Patras. She brings valuable experience from her previous roles at a major Greek ICT Company, where she conducted research to develop innovative products, participated in notable European Union projects, and managed financial operations. Eleni has been with the team since 2024.
Eszter Börzsönyi
+41 44 435 10 12eszter.boerzsoenyi@d-one.aiEszter graduated with a master degree in business information systems from Corvinus University of Budapest in 2014. Her areas of expertise are data quality, ETL-processes and reporting. Eszter has been with the team since 2014.
Eszter Kocsis
+41 44 435 10 10eszter.kocsis@d-one.aiEszter holds a B.Sc. in International Business Administration from Rotterdam School of Management and a M.Sc. in Data-Intensive Analysis with Distinction from University of St Andrews. Before joining D ONE, she worked as a Data Scientist at Emarsys. Eszter has been with the team since 2021.
Fabian Russmann
+41 44 435 10 10fabian.russmann@d-one.aiFabian graduated with a M.Sc. in Physics from the Swiss Federal Institute of Technology (ETH Zurich) in 2014 after receiving a B.Sc. in Physics from Jacobs University Bremen, Germany. His areas of expertise are project management, data warehouses, data modeling, and data analytics. Projects in healthcare, insurance, telecommunications, banking and sports organizations. Fabian has been with the team since 2016.
Dr. Felix Kuchelmeister
+41 44 435 10 10felix.kuchelmeister@d-one.aiFelix holds a Master of Science and Ph.D. in Statistics from the Swiss Federal Institute of Technology (ETH Zurich) and a Bachelor of Arts in Economics from the University of St. Gallen. He has expertise in machine learning, statistical modeling, and data analysis using Python and R. He has academic and practical experience in consulting and research. Felix has been with the team since 2024.
Filippos Nikolopoulos
+41 44 435 10 10filippos.nikolopoulos@d-one.aiFilippos received his MSc in Business Analytics and his BSc in Economics from the Athens University of Economics & Business. Before joining D ONE he worked as a Data Scientist / Digital Transformation Analyst in the National Hellenic Telecommunications Organisation. Filippos has been with the team since 2022.
Gabriel Levaillant
+41 44 435 10 10gabriel.levaillant@d-one.aiGabriel holds an MSc in Banking, Finance and Insurance from the University of Paris-Dauphine. During his studies, he attended Finance and Computer Science classes at the Hanken School of Economics in Helsinki, Finland. Before joining D ONE, he worked as a Data Scientist for Ankorstore. He has significant professional experience in the public and private sector. Gabriel has been with the team since 2022.
George Balas
+41 44 435 10 10george.balas@d-one.aiGeorge received his BA in Management Science and Technology from the Athens University of Economics and Business. Before joining D ONE, he worked as a Data Engineer / Business Analyst in the Consulting & Financial Advisory field. George has been with the team since 2023.
George Verouchis
+41 44 435 10 10george.verouchis@d-one.aiGeorge holds a Master Degree in Electrical Computer Engineering from the University of Patras. His previous professional experience extends in the field of Business Services where he worked as a Data Operations Project Coordinator, Researcher & Data Engineer. George has been with the team since 2023.
Grigoris Arfanis
+41 44 435 10 10grigoris.arfanis@d-one.aiGrigoris holds a B.Sc. in Informatics and Telematics from Charokopeio University of Athens. He has experience optimizing frontend performance, developing innovative solutions, and addressing complex challenges in network engineering and technical advisory. With a strong background in backend development and a passion for exploring new technologies, he continues to advance his expertise in the field. Grigoris joined the team in 2024.
Hans Peter Gränicher
+41 44 435 10 11hanspeter.graenicher@d-one.aiHans Peter is co-founder and CEO of D ONE. He received an engineering degree from Swiss Federal Institute of Technology Zurich (ETH) in 1994 and stayed at Lawrence Berkeley Laboratory as a researcher for a year. Since 2000 he held various positions in consulting. He founded D ONE in 2005 on the belief that data driven value creation is key for all industries in the 21st century.
Dr. Heiko Kromer
+41 44 435 10 10heiko.kromer@d-one.aiHeiko holds a Ph.D. in Nuclear Engineering from the Swiss Federal Institute of Technology (ETH Zurich). His consulting focus is advanced data analytics and machine learning including data extraction, processing, modelling, and visualization. Heiko has been with the team since 2021.
Ileanna Sotiropoulou
+41 44 435 10 10ileanna.sotiropoulou@d-one.aiIleanna holds a MEng in Electrical & Computer Engineering from the Technical University of Crete. She is a highly skilled and adaptable Data Scientist with a strong background in mathematical modelling, machine learning and data Engineering. Before joining D ONE, she worked as a R&D AI Engineer / Data scientist in the field of Information and Communication Technology.
Ilias Panagiotaras
+41 44 435 10 10ilias.panagiotaras@d-one.aiIlias received his M.Eng. in Electrical and Computer Engineering from the National Technical University of Athens. He has extensive experience in AI and a demonstrated history of working on various data architectures and cloud platforms in the retail, legal and telecommunications industries. Ilias has been with the team since 2022.
Inna Grijnevitch
+41 44 435 10 90inna.grijnevitch@d-one.aiInna received her B.Sc. in Software and Computer Engineering from Israel Institute of Technology and her M.Sc. in Computational Biology and Bioinformatics from ETH Zurich. Following her studies she worked at Microsoft USA, IBM Research and Frauenhofer Institute. Her focus is in machine learning and software development. Inna has been with the team since 2019.
Ioanna Psarra
+41 44 435 10 10ioanna.psarra@d-one.aiIoanna received her MSc in Computational and Statistical Data Analysis from the University of Patras. Her career objective is to explore the fields of technology and innovation in a data driven approach and in a way that empowers sustainable communities. Before joining D ONE, she worked as a Research Analyst in the field of Information Services, and she also has experience in the software and fintech industries. Ioanna has been with the team since 2022.
Jacqueline Stählin
+41 44 435 10 86jacqueline.staehlin@d-one.aiJacqueline received her M.Sc. in Biology from the Swiss Federal Institute of Technology (ETH Zurich) in 2016. Her areas of expertise are data architecture, analytics and visualization. Jacqueline has been with the team since 2017 and is leading a business unit.
Dr. Jan Scharnetzky
+41 44 435 10 10jan.scharnetzky@d-one.aiJan holds a B.Sc. and a M.Sc. in Interdisciplinary Sciences as well as a Ph.D. in Physics from ETH Zurich. Before joining D ONE, he worked as a Postdoctoral researcher at ETH Zurich. Jan has been with the team since 2021.
Joël Ineichen
+41 44 435 10 07joel.ineichen@d-one.aiJoël graduated with a degree in computer science from Berne University of Applied Sciences in 2010. His areas of expertise are data architecture, project management and data warehouse design. Joël has been in with team since 2011 and is leading a business unit.
Dr. Johannes Brand
+41 44 435 10 10johannes.brand@d-one.aiJohannes holds a PhD in Neuroinformatics from the Swiss Federal Institute of Technology (ETH Zurich). He also holds a University Diploma equivalent to M.Sc. and a B.Sc. in Electrical Engineering and Information Technology from the Technical University of Munich. Before joining D ONE, he worked as a Senior Data Scientist at Auterion in Zurich. Johannes has been with the team since 2022.
Justyna Boczon
+41 44 435 10 10justyna.boczon@d-one.aiJustyna received an MSc in Management and a BSc in Finance and Accounting from the Warsaw School of Economics. Prior to joining D ONE, she worked as a BI and Data Developer in Lingaro. Justyna has been with the team since 2022.
Katrin Stewart
+41 44 435 10 94katrin.stewart@d-one.aiKatrin received her degree 2004 in Hospitality Management from the Swiss Hotel Management School Lucerne and served as Cost Controller at Badrutt's Palace Hotel in St. Moritz and as Marketing Manager at Swissôtel Zürich in Zurich. And in 2014 she graduated with the higher economic/business diploma from HSO Wirtschaftsschule Schweiz. At D ONE Katrin is Team Leader Administration and has been with the team since 2011.
Kiki Petropanagiotaki
+41 44 435 10 10kiki.petropanagiotaki@d-one.aiKiki holds a B.Sc. in Mathematics and a M.Sc. in Applied Statistics, from the University of Crete. She began her career in Data Science in one of the biggest telecommunication service providers in the world. Before joining our team in 2024, she worked at a renowned Consulting Firm.
Konstantinos Ninas
+41 44 435 10 10konstantinos.ninas@d-one.aiKonstantinos received his Master of Science in Business Analytics from the Athens University of Economics and Business. He is an experienced ERP Business Consultant with a diverse domain knowledge and experience across multiple industries such as Retail, Pharmaceutical, Insurance and more. Konstantinos has been with the team since 2023.
Konstantinos Pittas
+41 44 435 10 10konstantinos.pittas@d-one.aiKonstantinos holds an M.Sc. from the National Technical University of Athens in Chemical Engineering and an M.Sc. in Management Science and Technology from Athens University of Economics and Business. Before joining D ONE, he worked as a Senior Quantitative Consultant at Ernst & Young in Athens. Konstantinos has been with the team since 2021.
Konstantinos Trantopoulos
+41 44 435 10 10konstantinos.trantopoulos@d-one.aiKonstantinos holds a PhD in Strategic Management from ETH Zurich and an MSc in Applied Mathematics from the National Technical University of Athens. He served as a Visiting Fellow at MIT and has extensive experience working with C-level executives across Europe, the US, and the Middle East. Currently, he holds positions as a senior external advisor at D ONE, a Fellow at IMD Business School, and a Founding Partner at Rheneia Partners. His work has been featured in prominent media outlets and his insights regularly appear in leading academic and business publications.
Konstantinos Zeakis
+41 44 435 10 10konstantinos.zeakis@d-one.aiKonstantinos holds a Master of Science in Electrical and Computer Engineering from the National Technical University of Athens. He is experienced in systems integration and implementation of applications for Business Intelligence, Data Warehouse and MDM, across 2 industries, banking and life sciences. Konstantinos has been with the team since 2022.
Liubomyr Fedyniak
+41 44 435 10 10liubomyr.fedyniak@d-one.aiLiubomyr received his Masters Degree in Business Informatics from Kyiv National Economic University. His areas of expertise are data modeling, architecture and business analysis. Liubomyr has been with the team since 2020.
Lorenz Eichhorn
+41 44 435 10 10lorenz.eichhorn@d-one.aiLorenz received his M.Sc. in Business Analytics from BI Norwegian Business School in Oslo, Norway. He also holds a B.Sc. in Business Administration from the University St. Gallen. Lorenz has been with the team since 2021.
Luca De Francesco
+41 44 435 10 10luca.defrancesco@d-one.aiLuca received his M.Sc. in Mechanical Engineering from the Delft University of Technology. Before joining D ONE, Luca completed a Graduate Program in the UK and held a data engineering position in Switzerland. He has been with the team since 2020.
Lucas Brunner
+41 44 435 10 10lucas.brunner@d-one.aiLucas holds a M.Sc. and B.Sc. in Computer Science from the Swiss Federal Institute of Technology (ETH Zurich). He focused his studies on Machine Learning, RL and Distributed Computing. Before joining D ONE, Lucas worked as Head IT & EE to build end to end machine learning applications for smart Cities and Infrastructure. Lucas has been with the team since 2023.
Lucas Zurbuchen
+41 44 435 10 10lucas.zurbuchen@d-one.aiLucas holds a Bachelor of Science in Computer Science from Northwestern University, where he also studied Double Bass Performance. His expertise spans data visualization, software development, AI, and data analytics, with a strong foundation in both technical and creative disciplines. Lucas has demonstrated his ability to translate complex data into interactive visual experiences, making significant contributions in both academic and professional settings. Lucas has been with the team since 2024.
Lukas Hefti
+41 44 435 10 10lukas.hefti@d-one.aiLukas received his BA in English Language and Literature Studies with a minor in Geography from the University of Zurich. Now, he works at D ONE as a Community Builder, promoting team culture and projects. In his free time, Lukas develops board games, sings, and performs close-up magic. Lukas has been with the team since 2022.
Maciej Siciński
+41 44 435 10 10maciej.sicinski@d-one.aiMaciej holds a Bachelor in Faculty of Management from University of Gdansk and a Masters degree in Quantitative Methods in Economics and Information Systems from Warsaw School of Economics. Before joining D ONE, he was working as a DWH Team Leader at EF Education First in Zurich. Maciej has been with the team since 2021.
Marc Bourqui
+41 44 435 10 10marc.bourqui@d-one.aiMarc holds an M.Sc. in Computer Science from the Swiss Federal Institute of Technology in Lausanne. Before joining D ONE, he has been a full stack developer working on implementing and maintaining data products and mobile applications. Marc has been with the team since 2020.
Dr. Marcel Zemp
+41 44 435 10 13marcel.zemp@d-one.aiMarcel received his Ph.D. in physics from the Swiss Federal Institute of Technology (ETH Zurich) in 2006. Afterwards, he held research positions in Santa Cruz, Ann Arbor and Peking. His areas of expertise are data modelling, data warehousing, and reporting. Marcel has been with the team since 2014.
Dr. Marco Petrella
+41 44 435 10 10marco.petrella@d-one.aiMarco received his Master of Science in Mathematics from the University of Tübingen and his PhD in Applied Mathematics at the Swiss Federal Institute of Technology in Zurich (ETH), where he has been also a lecturer. His areas of expertise include Machine Learning algorithms and Data Analytics. Marco has been with the team since 2023.
Dr. Maria Kliesch
+41 44 435 10 10maria.kliesch@d-one.aiMaria holds a Master of Arts and a Ph.D. in Linguistics from the University of Zurich with a specialization in Neurolinguistics. Prior to joining D ONE, she led a Doc.CH research project funded by the Swiss National Science Foundation on the effects of foreign language learning on the aging brain. Maria has been with the team since January 2022.
Maria Petrou
+41 44 435 10 10maria.petrou@d-one.aiMaria holds an MSc in Actuarial Science and Risk Management from the University of Piraeus and a BSc in Mathematics from the University of Patras. Before joining D ONE, she worked as a Senior Data Engineer in large multinational organizations, specializing in Data Warehouse and System Integration projects in the banking industry. Maria has been with the Team since 2023.
Marianna Arvaniti
+41 44 435 10 10marianna.arvaniti@d-one.aiMarianna holds an M.Sc.in Computer Science from the University of Crete, Greece and a Diploma in Computer Science & Engineering from the University of Ioannina, Greece. Before joining D ONE she worked as a Research & Development Engineer at Proxitour, as well as a Research Assistant at ICS-FORTH. Marianna has been with the team since 2022.
Martha Kourdoglou
+41 44 435 10 10martha.kourdoglou@d-one.aiMartha holds a diploma from the Greek Police Academy. Following her time in civil service, she transitioned to a career as a commercial specialist, focusing on accounting and operations. Martha is a member of the backbone team at D ONE since 2024.
Menelaos Synefakoulis
+41 44 435 10 10menelaos.synefakoulis@d-one.aiMenelaos holds a Bachelor of Science in Mobile and Desktop Application Development from Barcelonas Centre D'Estudis Politecnics. His professional journey began as a Technical Consultant at IBM and throughout the years he became a back-end developer. His last role was at Rokoko Electronics, a Danish Technology, Information, and Media company. Menelaos has been with the Team since 2024.
Meret Ringwald
+41 44 435 10 10meret.ringwald@d-one.aiMeret holds a B.Sc. and a M.Sc. in Biology from the Swiss Federal Institute of Technology (ETH) in Zurich. Before joining D ONE, she worked as a Research Assistant at ETH Zurich. Meret has been with the team since 2021.
Michael Gassmann
+41 44 435 10 10michael.gassmann@d-one.aiBeing a developer at heart, Michael has held management, executive, and coaching positions in various fields over the past years. Here at D ONE, he is in charge of driving several endeavours. Michael has been with the team since 2024.
Michalis Kalligas
+41 44 435 10 10michalis.kalligas@d-one.aiMichalis received his MSc in Business Analytics and his BSc in Accounting & Finance from the Athens University of Economics and Business. Before joining D ONE, he worked for Ernst & Young as a Consultant in the field of International Tax and Transaction Services and as a Data Analyst for Wikifarmer, a Greek fast-growing agricultural marketplace with global presence. Michalis has been with the team since 2023.
Dr. Moritz Haag
+41 44 435 10 10moritz.haag@d-one.aiMoritz holds a PhD in Computational/Theoretical Chemistry and a M.Sc. in Interdisciplinary Sciences from the Swiss Federal Institute of Technology (ETH Zurich). He also holds a B.Sc. in Chemistry and Biochemistry from the University in Munich. Moritz has been with the team since 2022.
Natalia Steenbock
+41 44 435 10 23natalia.steenbock@d-one.aiNatalia received her M.Sc. in Management, Technology and Economics from Swiss Federal Institute of Technology (ETH Zurich) in 2015. She also holds a B.Sc. in Electrical Engineering and Information Technology. After finishing her studies, Natalia has worked for various companies in Switzerland, including a leading swiss financial institution and a management consulting firm. Natalia has been with the team since 2020 and is leading a business unit.
Nicola Hefti
+41 44 435 10 08nicola.hefti@d-one.aiNicola is a software engineer and data analytics specialist. His areas of expertise are software development, data visualisation and data warehousing. Nicola has been with the team since 2015.
Nicola Reggiori
+41 44 435 10 18nicola.reggiori@d-one.aiNicola graduated with a degree in telecom engineering from Fribourg University of Applied Science in 2003. Post-graduation program at Northeastern University in Boston. His areas of expertise are data warehousing and reporting. Nicola has been with the team since 2007.
Nikkitha Ramesh
+41 44 435 10 10nikkitha.ramesh@d-one.aiNikkitha graduated with a Bachelor of Engineering degree in Computer Science from VTU, India in 2017. Prior to joining D ONE, she worked in a Swiss bank in the Enterprise Platform and Asset Management verticals with main focus on Databases, Data Engineering, Azure and BI tools. Nikkitha has been with the team since 2021.
Nikolaos Anagnostopoulos
+41 44 435 10 10nikos.anagnostopoulos@d-one.aiNikolaos received his MSc in Statistics from the Athens University of Economics and Business. He is an enthusiastic data scientist with an advanced theoretical and practical background. Before joining D ONE, he worked as a Data Scientist in the field of Insurance and as a Credit Risk Data Scientist in EY. Nikolaos has been with the team since 2023.
Nikolaos Rodis
+41 44 435 10 10nikos.rodis@d-one.aiNikolaos holds an MSc in Statistics from the Athens University of Economics and Business and a BSc in Mathematics from the University of Patras. Before joining D ONE, he worked as a Data Science Analyst in the field of Business Management Consultants where he contributed to a range of Data Science and Data Engineering projects while he also has research experience in the field of eXplainable AI. He has been with the team since 2023.
Nikolaos Varythymiadis
+41 435 10 10nikolaos.varythymiadis@d-one.aiNikolaos holds an M.Sc. in Telecommunication Systems and Network Technologies as well as a B.Sc. in Informatics and Telecommunications from the National and Kapodistrian University of Athens. Nikolaos is a true technology enthusiast with an entrepreneurial mindset, who specializes in Analysis and Management. Before joining D ONE, he was the Head of Information Technology and Communications for a shipping company, and prior to that, he was the man in charge of Business Intelligence in a shipping group. Nikolaos has been with the team since 2022.
Nikos Skliris
+41 44 435 10 10nikos.skliris@d-one.aiNikos holds a B.Sc. in Physics and is continuing his studies in Computer Science. He brings with him over 5 years of experience in Software Engineering. He joined D ONE in 2024.
Nino Weingart
+41 44 435 10 10nino.weingart@d-one.aiNino holds an M.Sc. and B.Sc. in Computer Science from Swiss Federal Institute of Technology (ETH). Before joining D ONE, Nino worked as a Software and Machine Learning Engineer in Switzerland. Nino has been with the team since 2021.
Noé Fischer
+41 44 435 10 10noe.fischer@d-one.aiNoé holds an M.Sc. in Management from HEC Lausanne in 2018 and a B.Sc. in Communications, Business Administration, and Economics from the University of Fribourg, Switzerland. Before joining D ONE, he worked as an Analytics Manager at Sony Music Entertainment Switzerland and as a Data Scientist Intern at eBay. Noé has been with the team since 2022.
Panagiotis Goumenakis
+41 44 435 10 10panagiotis.goumenakis@d-one.aiPanagiotis received his Master of Science in Big Data and Analytics from the University of Piraeus and his BSc in Mathematics from University of Surrey. Before joining D ONE, he was employed as a ML Engineer for a European cloud-based Neobank and also as a R&D Engineer in the sector of Maritime Software Solutions. He has been with the team since 2023.
Panagiotis Langaris
+41 44 435 10 10panagiotis.langaris@d-one.aiPanagiotis holds an Integrated Master of Engineering (combined bachelor and master degree) in Electrical & Computer Engineering from the National Technical University of Athens, and a Master of Science in Artificial Intelligence from the Katholieke Universiteit Leuven. He joined our team bringing with him solid experience at one of the biggest telecommunications companies in Greece.
Pantelis Liopyris
+41 44 435 10 10pantelis.liopyris@d-one.aiPantelis received his B.Sc. in Computer Science from the Athens University of Economics & Business. His main industry expertise lies within the Banking and Insurance sectors, gained by engaging multiple IT projects in diverse domains like Core Banking and Data Warehousing. He has extensive experience in the fields of system & business analysis, design, implementation and SIT/UAT testing. Pantelis has been with the team since 2022.
Patrick Buck
+41 44 435 10 12patrick.buck@d-one.aiPatrick holds an M.Sc. in Electrical Engineering and Information Science from the Swiss Federal Institute of Technology (ETH Zurich). Prior to D ONE, he was with Microsoft Switzerland where he led the Data and AI sales unit. Patrick is managing director and leading one of the business units of D ONE.
Pavlos Sofroniou
+41 44 435 10 10pavlos.sofroniou@d-one.aiPavlos pursued Electrical and Computer Engineering at the Technical University of Crete in Greece. Before joining D ONE, he worked as a Cloud Engineer at Deloitte. He has been with the team since 2024.
Dr. Philipp Thomann
+41 44 435 10 24philipp.thomann@d-one.aiPhilipp received his Ph.D. in Mathematics from the University of Zurich in 2013. Afterwards he served as a postdoctoral researcher at the University of Stuttgart, Germany. His areas of expertise are machine learning, natural language processing, search and distributed computation. Philipp has been with the team since 2017.
Dr. Philipp Warmer
+41 44 435 10 10philipp.warmer@d-one.aiPhilipp received his Dr. sc. in Systems Biology from the Swiss Federal Institute of Technology (ETH) in Zurich. He also holds a M.Sc. in Bioinformatics and a B.Sc. in Focus Technology. Philipp has been with the team since 2021.
Robert Yousif
+41 44 435 10 10robert.yousif@d-one.aiRobert holds a B.Sc. in Mechanical Engineering and a M.Sc. in Mechatronics from KTH Royal Institute of Technology in Stockholm. Before joining D ONE, he was working as a data & software engineer for KPMG in Stockholm. Robert has been with the team since 2021.
Ruben Wolff
+41 44 435 10 10ruben.wolff@d-one.aiRuben graduated with a Master in Computer Science from the Swiss Federal Institute of Technology (ETH Zurich) in 2015 and also holds a Bachelor of Science in Computer Science with Magna Cum Laude from University of Texas in Dallas, USA. His areas of expertise are data engineering and machine learning.
Samuel von Baussnern
+41 44 435 10 10samuel.vonbaussnern@d-one.aiSamuel holds a B.Sc. in Neuroinformatics from the University of Zurich (UZH) and a M.Sc. in Computer Science from EPFL. Before joining D ONE, he worked as a Machine Learning Engineer, Software Engineer and Data Scientist at various Startups. Samuel has been with the team since 2021.
Dr. Santiago Padron
+41 44 435 10 10santiago.padron@d-one.aiSantiago holds a P.hD. & M.Sc. in Aeronautics & Astronautics from Stanford University in California, USA. Before joining D ONE he has been working as data scientist and ML specialist for startups in California in areas of healthcare and autonomous vehicles. Santiago has been with the team since 2020.
Sebastian Baumhauer
+41 44 435 10 97sebastian.baumhauer@d-one.aiSebastian graduated with a Master in Management, Technology and Economics from Swiss Federal Institute of Technology (ETH Zurich) in 2012 and also holds a B.Sc. in Electrical Engineering and Information Technology. His areas of expertise are data analytics and visualization. Sebastian has been with the team since 2016.
Shams Taha
+41 44 435 10 10shams.taha@d-one.aiShams holds a MSc in Mechanical Engineering from ETH Zurich with a focus in control systems and reinforcement learning. She has expertise in building data analytics backends and cloud-hosted applications. Prior to joining D ONE, she worked as a Senior software engineer at Siemens Switzerland. Shams has been with the team since 2024.
Dr. Shyam Chikatamarla
+41 44 435 10 10shyam.chikatamarla@d-one.aiShyam Chikatamarla obtained his Ph.D. in statistical physics from ETH Zurich in 2008. He was awarded the ETH Medal for outstanding PhD thesis. He has 8 years of research experience at ETH Zurich as a senior scientist in the field of computational physics. His specializations include high performance computing, handling large datasets and Machine Learning algorithms. He has worked in the retail industry for three years as a Data Scientist before joining D ONE in 2021.
Dr. Simon Hefti
+41 44 435 10 00simon.hefti@d-one.aiSimon received his Ph.D. in physics from University of Berne in 1997. Afterwards, he held a research position at the University of Michigan. His areas of expertise are enterprise architecture, data architecture and strategy. Simon is co-founder of D ONE and chairman of the board of directors.
Simone Totino
+41 44 435 10 10simone.totino@d-one.aiSimone received his joint M.Sc. in Sustainable Energy Engineering from KTH Stockholm and UPC Barcelona and his B.Sc. in Environmental Engineering from the University of Applied Sciences, Bremen. Prior to joining D ONE, he worked as management consultant and data analyst. Simone has been with the team since 2022.
Slawomir Zakrzewski
+41 44 435 10 10slawomir.zakrzewski@d-one.aiSlawomir received his Master of Science in Engineering from the Warsaw University of Technology. Before joining D ONE, he worked as a Lead Consultant at Lingaro in Warsaw. Slawomir has been with the team since 2021.
Spyros Cavadias
+41 44 435 10 10spyros.cavadias@d-one.aiSpyros received his M.Sc. in Artificial Intelligence from the Katholieke Universiteit Leuven in Belgium. He also holds a M.Sc. in Electrical and Computer Engineering from the National Technical University of Athens in Greece. He has worked for IQVIA as a Business Intelligence Analyst and for IMEC as a Machine Learning Engineer, where he worked on tinyML applications for Edge AI devices. Spyros has been with the team since 2020.
Dr. Stamatis Stefanakos
+41 44 435 10 03stamatis.stefanakos@d-one.aiStamatis holds a Ph.D. in Theoretical Computer Science from the Swiss Federal Institute of Technology (ETH Zurich) and a Diploma in Computer Engineering and Informatics from University of Patras. Stamatis is managing director of D ONE leading one of our business units in Switzerland and our consulting hub in Greece.
Seda Yavuz
+41 44 435 10 10seda.yavuz@d-one.aiSeda is part of the Backbone team and manages our events. She brings a wide range of experience, from sales to artist management. Seda has previously worked on various international projects from London, including as an executive assistant. Seda is a member of the backbone team at D ONE since 2024.
Stavros Iakovou
+41 44 435 10 10stavros.iakovou@d-one.aiStavros has a MEng in Computer Engineering and Informatics from the University Athens and a M.Sc. in Data Science from the University of Southampton. He is an experienced Senior Data Engineer who has explored a variety of industries. With a demonstrated history of leading teams and delivering data engineering solutions, he successfully directed the transition of intricate data environments to the cloud, leveraging predictive modeling and machine learning to extract actionable insights from extensive datasets. Stavros has been with the team since 2024.
Stepan Gaponiuk
+41 44 435 10 10stepan.gaponiuk@d-one.aiStepan holds a Specialist Degree in Mathematical Methods in Economics from Saint Petersburg State University of Aerospace and Instrumentation. He has been working as a business analyst, BI and ETL Developer and Scrum Master in the past. Before joining D ONE, he worked as a BI Developer at Nordea and a consultant at Accenture. Stepan has been with the team since 2022.
Stephen Quinn
+41 44 435 10 10stephen.quinn@d-one.aiStephen received his M.Sc. in Data Science & Analytics from Munster Technological University and his M.Sc. in Analytical Chemistry from University College Cork. He has significant experience as an Analytical and Chemical Scientist, across leading multinational companies in the Pharmaceutical field. Stephen has been with the team since 2022.
Thanos Gkinakos
+41 44 435 10 10thanos.gkinakos@d-one.aiThanos holds an M.Sc. from the National Technical University of Athens in Electrical and Computer Engineering and an M.Sc. in Business Analytics from Athens University of Economics and Business. Before joining D ONE, he worked as a Senior Data & Analytics Consultant at Ernst & Young in Athens. Thanos has been with the team since 2021 and is leading one of our business units in Athens.
Thanos Karousos
+41 44 435 10 10thanos.karousos@d-one.aiThanos is currently doing his masters degree in Computer Engineering and Informatics in Greece until 2022. Before joining D ONE, he did an internship as a Cloud Developer at Citrix. Thanos has been with the team since 2021.
Thanos Spinoulas
+41 44 435 10 10thanos.spinoulas@d-one.aiThanos received his Master of Science in Business Analytics from the Athens University of Economics and Business and his Master of Science in Applied Mathematical Sciences and BSc in Mathematics from the National Technical University of Athens. He is an experienced Data Scientist and Senior Data Analyst in the fields of Cloud Computing and Big Data Services. Thanos has been with the team since 2023.
Dr. Timo Welti
+41 44 435 10 10timo.welti@d-one.aiTimo received his PhD in Applied Mathematics from ETH Zürich. During his PhD he worked on the foundations of deep learning and completed research stays at the universities of Oxford and Vienna. His areas of expertise include data analytics, machine learning, project management and data visualisation. Timo has been with the team since 2020.
Tristan Stampfler
+41 44 435 10 10tristan.stampfler@d-one.aiTristan received his Master of Data Science from ETH Zürich and his Master of Science from Ecole polytechnique, Paris. Before joining D ONE, he worked as a Business Analyst Intern at McKinsey & Company in Paris and also had experience at big tech companies like IBM. His areas of focus are: machine learning, analytics and strategy. Tristan has been with the team since 2022.
Vangelis Matsoukas
+41 44 435 10 10vangelis.matsoukas@d-one.aiVangelis is a passionate Data Engineer with a BSc in Physics from the University of Athens and an MSc in Data Science from Deree, The American College of Greece. He has a proven track record in leveraging Azure Cloud technologies, including Azure Synapse Analytics and Databricks, and has actively contributed to projects utilising cutting-edge Data Engineering technologies such as Delta Lake. Vangelis joined our team in 2024.
Zoi Doxanidi
+41 44 435 10 10zoi.doxanidi@d-one.aiZoi holds an MS in Strategic HRM from the Alba Graduate Business School of Athens and a BA in German Language and Literature from the National Kapodistrian University of Athens. Before joining D ONE, she worked as a Talent Acquisition Specialist at a global CX technology and services provider. Zoi also has extended professional experience in the fields of Quality Assurance, Customer Care, and Private Education. She has been with the team since 2024.
Management
Hans Peter GränicherHans Peter Gränicher
+41 44 435 10 11hanspeter.graenicher@d-one.aiHans Peter is co-founder and CEO of D ONE. He received an engineering degree from Swiss Federal Institute of Technology Zurich (ETH) in 1994 and stayed at Lawrence Berkeley Laboratory as a researcher for a year. Since 2000 he held various positions in consulting. He founded D ONE in 2005 on the belief that data driven value creation is key for all industries in the 21st century.
Dr. Simon Hefti
+41 44 435 10 00simon.hefti@d-one.aiSimon received his PhD in physics from University of Berne in 1997. Afterwards, he held a research position at the University of Michigan. His areas of expertise are enterprise architecture, data architecture and strategy. Simon is co-founder of D ONE and chairman of the board of directors.
Dr. Stamatis Stefanakos
+41 44 435 10 03stamatis.stefanakos@d-one.aiStamatis holds a PhD in Theoretical Computer Science from the Swiss Federal Institute of Technology (ETH Zurich) and a Diploma in Computer Engineering and Informatics from University of Patras. Stamatis is managing director of D ONE leading one of our business units in Switzerland and our consulting hub in Greece.
Patrick Buck
+41 44 435 10 12patrick.buck@d-one.aiPatrick holds an MSc in Electrical Engineering and Information Science from the Swiss Federal Institute of Technology (ETH Zurich). Prior to D ONE, he was with Microsoft Switzerland where he led the Data and AI sales unit. Patrick is managing director and leading one of the business units of D ONE.
Christian Erni
+41 44 435 10 91christian.erni@d-one.aiChristian is a pioneer of new media communication and has a vast experience at the intersection of information and design. Before joining D ONE, he was Creative Director at international agencies and lecturer for visual design at Zurich University of the Arts. Christian presides the Best of Swiss Web jury and was juror at the New York Festivals until 2012. Christian is our communication director and is heading our data experience practice.
Dominique Im Obersteg
+41 44 435 10 10dominique.imobersteg@d-one.aiDominique received his MSc in Computer Science from the Swiss Federal Institute of Technology (ETH Zurich). Before joining D ONE he held various management positions in Avaloq consulting and was managing partner of a consulting company for financial institutions. Dominique joined the team in 2021 and is managing director and leading one of the business units of D ONE.
Board of Directors
Dr. Simon HeftiDr. Simon Hefti
+41 44 435 10 00simon.hefti@d-one.aiSimon received his PhD in physics from University of Berne in 1997. Afterwards, he held a research position at the University of Michigan. His areas of expertise are enterprise architecture, data architecture and strategy. Simon is co-founder of D ONE and chairman of the board of directors.
Dr. Andrej Vckovski
+41 44 247 79 05andrej.vckovski@d-one.aiAndrej earned his doctorate at the University of Zurich after studying physics at the Swiss Federal Institute of Technology. He co-founded Netcetera in 1996 and is the group's CEO. He is in the board of directors of D ONE since 2006.
Hans Peter Gränicher
+41 44 435 10 11hanspeter.graenicher@d-one.aiHans Peter is co-founder and CEO of D ONE. He received an engineering degree from Swiss Federal Institute of Technology Zurich (ETH) in 1994 and stayed at Lawrence Berkeley Laboratory as a researcher for a year. Since 2000 he held various positions in consulting. He founded D ONE in 2005 on the belief that data driven value creation is key for all industries in the 21st century.
Dr. Philipp Vetter
+41 44 435 10 94philipp.vetter@d-one.aiPhilipp earned his PhD in computational neuroscience from University College London following his studies at the Swiss Federal Institute of Technology in Zurich. He acts as an executive, non-executive and advisor in companies at the intersection of health and information technology. Previously, he was Director of Strategy for the Health Authority Abu Dhabi and Associate Principal with McKinsey in London. Philipp is in the board of directors of D ONE since 2018.