About

Max is the founder of Our World in Data and began working on this free online publication in 2011. Today, he serves as the publication’s editor and leads the team as its co-director. He is the Professor of Practice in Global Data Analytics at the University of Oxford’s Blavatnik School of Government, the Programme Director of the Oxford Martin Programme on Global Development, and the Executive Co-Director of Global Change Data Lab, the non-profit organization that publishes Our World in Data.

For inquiries, please get in touch with Max’s Executive Assistant, Angela Wenham, at angela@ourworldindata.org.

Angela joined us in 2024 as Max Roser’s executive assistant. Her background is in Project Management and she holds an MSc in Psychology from Oxford Brookes University.

Esteban is the Executive Co-Director of Our World in Data alongside Max Roser. In tandem, they lead Global Change Data Lab, the non-profit organization responsible for publishing Our World in Data. Esteban is also an Honorary Researcher at the Oxford Martin Programme on Global Development, where his research and writing cover topics including economic development, public sector analysis, education, and a wide range of related issues. Prior to joining the team at Our World in Data, Esteban was a Departmental Lecturer in Economics at the University of Oxford’s Blavatnik School of Government, from 2013 to January 2016. Esteban completed his doctoral studies at the University of Oxford (DPhil Economics).

Joe joined us in 2017. As Head of Product and Design, he coordinates efforts to develop tools and layouts that make our research and data more accessible and understandable. He also contributes as a researcher, where his work focuses on global trends in poverty and economic inequality. He is currently working towards a Ph.D. at the University of Oxford.

Edouard joined us in 2020 as our Head of Data, before becoming Head of Data and Research in 2023. He manages the team of data scientists and researchers who produce our articles and data visualizations. He previously worked as a data scientist at the University of Oxford, in the Population Health and Primary Care Health Sciences departments. He holds a master’s degree from Sciences Po Paris.

Hannah joined us in 2017. She became Deputy Editor and Science Outreach Lead at Our World in Data in 2023. She was previously Head of Research. She focuses on the long-term changes in the environment – energy, pollution, agriculture, food supply – and their compatibility with global development. Hannah completed her Ph.D. in GeoSciences at the University of Edinburgh. She is a researcher at the Oxford Martin Programme in Global Development, and an honorary fellow at the University of Edinburgh's School of Geosciences and Edinburgh’s Climate Change Institute. Her first book – Not the End of the World – looks at seven of our big environmental problems, and how to solve them. You can find more of her writing on her Substack – Sustainability by Numbers.

Daniel joined us in 2021 as our Principal Software Engineer. He became Head of Engineering in early 2025. Previously he worked on scientific data management and visualization solutions in the life sciences. He studied film directing and now focuses on applying both his engineering and creative background on improving our visualization tools.

Tuna joined us in 2024. She previously worked on machine learning for epigenetic data and in management consulting. She has an M.Sc. in Data Science from the Technical University of Munich.

Pablo joined in 2022 to expand OWID’s work on poverty, inequality, and economic development. Before this, he was a consultant in data analysis, data visualization, and data science for academic and journalistic research in Chile, and previously worked in institutional data analysis for higher education. He has an MPA in Public and Economic Policy from the London School of Economics.

Saloni joined us as a researcher in 2021. She is a Project Lead at Global Change Data Lab focusing on health. She has a Ph.D. in psychiatric genetics from the University of Hong Kong and King’s College London.

Charlie joined us in 2020. He has worked across our team: initially joining as a researcher, later moving to our operations team, and now leading our communications. He completed his Ph.D. in cognitive neuroscience at Duke University.

Bastian joined us in 2021. He works on human rights, democracy, armed conflict, and violence. Contact him if you have questions about his topics or related data, need advice on which data source to use, or have suggestions for new articles or data sources. Bastian has a Ph.D. in Political Science from the University of Chicago and an MA in Political Science and Economics from Heidelberg University. He is a Project Lead at the Global Change Data Lab and an Honorary Researcher at the Oxford Martin School.

Lucas is a Senior Data Scientist at Our World in Data, mostly working on the curation of various datasets and the data infrastructure. He joined in 2021, after working as a Deep Learning Researcher at the National Institute of Informatics (Tokyo, Japan) and as a Data Scientist for the private sector. He studied an M.Sc. in Electrical Engineering at UPC (Barcelona, Spain) and KTH (Stockholm, Sweden).

Bertha joined us in 2024. She works on poverty, inequality, economic growth, and a range of related topics. Bertha has a Ph.D. in Economics from the University of Sheffield and a double M.Sc. in Economic Development from the University of Warwick and Lund University.

Pablo joined in 2022. He holds a Ph.D. in Astrophysics and Data Analysis from the Max Planck Society, where he conducted research on gravitational wave detection and radio astronomy. With over a decade of experience across academia and industry, he has applied advanced machine learning and data science in sectors such as finance, renewable energy, and intellectual property.

Veronika joined us in 2023. She recently finished her Ph.D. in Computational Neuroscience at the University of Oxford, and previously worked in the Data Journalism team at the Financial Times.

Fiona joined us in 2021. She was previously a Turing postdoctoral fellow at the University of Exeter working on tracking the Sustainable Development Goals and modeling the Covid-19 pandemic. She has a Ph.D. in Ecology and Environment from UCL (London, UK) and an MSc in Conservation Science from Imperial College (London, UK).

Simon joined us in September 2024. He brings several years of writing experience with Dutch media outlet De Correspondent, where he focused on topics such as migration, aging populations, factory farming, and politics. He is also pursuing a Ph.D. in Politics at the University of Oxford.

Mojmir joined us in 2022 as a data engineer. He studied statistics and computer science, which he applied to various machine learning projects in healthcare, fintech, and travel. Now he’s trying to improve our data infrastructure to improve the lives of our data analysts.

Matthieu joined in 2019 and has the overall mission of providing readers with a flowing experience between data and research throughout the publication. Drawing on his consulting experience from communication agencies in Paris, he is now building the next iteration of our content management system.

Marwa joined us in 2022 as a freelance UX/UI designer. She is helping refine, define and document a consistent design system for the OWID website. Previously, she worked on designing end-to-end digital experiences for clients in the public sector, telco, and entertainment industries at Frog Milan.

Marcel joined us in 2020. He is helping us build and improve our data visualization tools and the website as a whole. Marcel holds a master’s degree in computer science from RWTH Aachen University.

Bobbie joined us in 2020 to contribute to our data management team. In 2023, he joined the Product and Design team, working on Analytics. He has a Ph.D. in political science from Stanford University and an MSc in international development from the London School of Economics.

Sophia joined us in 2023 to focus on our in-house visualization library, Grapher. Previously, she worked as Data Visualization Engineer in the newsroom as part of a data journalism team at rbb|24 in Berlin. Sophia lives in Frankfurt.

Martin joined in 2024 to focus on improving our site and content management system. He studied computer science and previously worked in forecasting, telecommunications, and built websites for various clients.

Ike joined us in 2022. He’s a web developer originally from Aotearoa New Zealand, now based in Montreal, and if he’s not tinkering with our website’s codebase, he’s probably drumming or watering his plants.

Antoinette joined us in 2023 as our Human Resources (HR) Manager. She most recently worked in HR for a biotech spinout, and also has experience in fundraising and marketing.

Hassan has worked in diverse sectors including data leadership, global health, health R&D, collaborative technologies, foresight, research, and engineering. He has a Ph.D. in Computer Science.

Natalie joined us in 2022 as Operations and Administration Officer. Her background is in research administration and education, having taught Spanish, French and English. She was previously the administrator for the Rees Centre at the University at Oxford.

Valerie joined us in 2021 as Operations and Finance Manager. She has over a decade of experience in international development and social enterprise in East Africa and is the founder of Kijani Uganda. She has an MBA from Oxford Saïd Business School.