Former team members
![T3dr40mtq upkg25ues g6db63e3993e 512](https://ourworldindata.org/app/uploads/2020/04/T3DR40MTQ-UPKG25UES-g6db63e3993e-512.jpeg)
Jason Crawford
Software Team Lead (Part-time Advisor)
Jason Crawford is the former CEO and co-founder of Fieldbook and has been an engineering manager at companies including Amazon and Flexport. He is the author of The Roots of Progress, where he writes about the history of technology and industry.
![Cds headshot](https://ourworldindata.org/app/uploads/2023/03/cds-headshot-550x550.jpg)
Dr. Christian Swinehart
Data Visualization Lead
Christian joined us in 2023 to advance our data visualizations. His dual passions for designing elegant visualizations and developing empowering tools have brought him to design for Pentagram, develop interactives for Bloomberg and The New York Times, as well as author several open source visualization libraries. Christian holds an MFA in graphic design from RISD and a Ph.D. in computational neuroscience from Brandeis.
![Natasha](https://ourworldindata.org/app/uploads/2024/01/Natasha-550x550.jpg)
![Conlen cropped headshot](https://ourworldindata.org/app/uploads/2022/02/conlen-cropped-headshot-550x550.png)
Dr. Matthew Conlen
Head of Product and Design
Matthew worked with us from 2022–2023 to help with data visualization and digital publishing efforts. He has a Ph.D. in computer science from the University of Washington and has worked on data journalism efforts at various publications including the New York Times, CNN, and FiveThirtyEight.
![Mallika](https://ourworldindata.org/app/uploads/2023/02/Mallika-550x550.png)
![Daniel gavrilov square](https://ourworldindata.org/app/uploads/2018/11/daniel-gavrilov-square.jpg)
![Julia broden headshot](https://ourworldindata.org/app/uploads/2023/09/julia_broden_headshot-552x550.png)
![Usesthis](https://ourworldindata.org/app/uploads/2018/02/usesthis-550x550.png)
![Cameron appel](https://ourworldindata.org/app/uploads/2021/03/Cameron-Appel-550x550.jpeg)
![Aibek aldabergenov](https://ourworldindata.org/app/uploads/2022/02/aibek-aldabergenov-550x550.jpeg)
![Shahid square](https://ourworldindata.org/app/uploads/2020/04/Shahid-Square-549x550.png)
![Anstey small e1547772955563](https://ourworldindata.org/app/uploads/2019/01/Anstey-small-e1547772955563-550x550.jpg)
![Lindsay lee](https://ourworldindata.org/app/uploads/2022/02/lindsay-lee.jpg)
![Mohamed nagdy](https://ourworldindata.org/app/uploads/2022/02/mohamed-nagdy.jpg)
![Preview full sandra tzvetkova](https://ourworldindata.org/app/uploads/2017/09/preview-full-Sandra-Tzvetkova-552x550.png)
![Ruby](https://ourworldindata.org/app/uploads/2017/08/Ruby-550x550.png)
![Sophie ochmann small](https://ourworldindata.org/app/uploads/2017/12/Sophie-Ochmann-small.png)
![Molteni](https://ourworldindata.org/app/uploads/2018/09/Molteni-544x550.png)
![Zdenek hynek](https://ourworldindata.org/app/uploads/2022/02/zdenek-hynek.jpg)
![Julia](https://ourworldindata.org/app/uploads/2008/09/Julia-550x550.png)
![Diana small](https://ourworldindata.org/app/uploads/2017/12/Diana-small.png)
![Ernst small](https://ourworldindata.org/app/uploads/2020/04/ernst_small-550x550.jpg)
![Sonya square](https://ourworldindata.org/app/uploads/2018/10/Sonya-square-550x550.jpg)
Contributors
![Brian nolan](https://ourworldindata.org/app/uploads/2022/02/brian-nolan.jpeg)
![Stefan thewissen](https://ourworldindata.org/app/uploads/2022/02/stefan-thewissen.jpeg)
![Samantha vanderslott](https://ourworldindata.org/app/uploads/2022/02/samantha-vanderslott.jpg)
![Nicolas lippolis](https://ourworldindata.org/app/uploads/2022/02/nicolas-lippolis.jpeg)