Meet the NumFOCUS Team

Sylvain Corlay is the founder and CEO of QuantStack, an open-source scientific computing software corporation. He holds a PhD in mathematics from Université Pierre-et-Marie-Curie in Paris.

Logan currently leads advocacy at PathAI, a Boston based company using machine learning to improve cancer patient outcomes. Logan received his bachelor’s degree from Harvard University with a focus on Computer Science and is now a dual graduate student at Northwestern University’s School of Law and Harvard University.

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James has played a vital role in organizing the PyData community while serving as a liaison during his years as a NumFOCUS Vice President. He has attended 30+ PyData events throughout the world helping to recruit the best talent and ideas to better the community. James has also worked with core developers behind numerous NumFOCUS projects to advance their communities.

Dr. Katrina Riehl is President of the Board of Directors at NumFOCUS, Head of the Streamlit Data Team at Snowflake, and Adjunct Lecturer at Georgetown University.

Noa have been involved with the R and PyData communities for some time, with a focus on community building and DEI.

Dr. Gray is the Head of Data Science at KPMG Spark, where he builds predictive products with machine learning and Python that are reinventing how Bookkeepers work.

Leah Silen has been with NumFOCUS from its beginning, working with the founding board members to write the application for NumFOCUS’s nonprofit status. Before joining NumFOCUS, she worked in the nonprofit sector as a Public Relations and Program Director with a focus on community relations and fundraising. Leah has also volunteered and sat on several boards of nonprofit organizations.

Arliss Collins joined NumFOCUS in 2020 as the Open Source Developer Advocate.  Before joining NumFOCUS she worked as the Data & Metrics Analyst for the Mozilla Foundation as well as the Participation Coordinator for the Mozilla Science Lab.  She brings with her experience in open source advocacy, data science and community engagement. Arliss has a degree in Engineering from Queen’s University, Canada

​Lynn Brubaker graduated with a Bachelor of Science Business Administration.  Before joining NumFOCUS, she worked at a hedge fund as an Office Manager.

Lisa Martin joined NumFOCUS in 2019 as Financial Administrator.  She brings with her experience in finance, copy editing, and communications, working in a variety of different organizations. Prior to joining NumFOCUS she worked as a bookkeeper, volunteer, board member and executive assistant. Lisa has a degree in Economics from Willamette University.

Samina Trachier joined NumFOCUS in 2021 as the Events & Digital Marketing Coordinator, and as of 2022 is the Events and Digital Marketing Manager. She’s a graduate of New York University where she received a BFA in Game Design. Before joining NumFOCUS Samina was active in the Austin events industry and acted as the Media Communications Coordinator for The OpenAir Collective.

Carolyn joined NumFOCUS in 2021 as Communications and Marketing Manager. Before joining NumFOCUS, she worked as a PR and Marketing Manager for a global company. Her professional background is in digital marketing, advertising, and public relations including editorial and creative project management, social media, and event production. Carolyn has a degree in Telecommunications from the University of Florida.

Lindsay joined the NumFOCUS team in June 2022. Prior to becoming a team member, she worked as a business strategy and development specialist consulting for nonprofits around the world. Her focus is heavily on grant management and project development. 

Tomara joined NumFOCUS in 2022 as the Events Manager. Before joining NumFOCUS, she worked in municipal and non-profit recreation and event management for over 17 years. Tomara is a graduate of the University of North Texas.

Prior to joining NumFOCUS in October 2022, Savannah managed multiple clients for a bookkeeping firm. Savannah has a Bachelor of Science in Business Administration from Eastern Oregon University along with multiple years of bookkeeping experience. Savannah enjoys working with numbers and in her spare she likes to spend time with her dogs.

Donovan DelValle (they/them) joined NumFOCUS in 2022 as an Events Intern, and as of 2023 has been hired full-time as the Marketing & Events Coordinator. They received their Bachelor’s in Music Education from New York University in 2021 and have since branched into the events and communications field. They have a background in event planning and working with first-generation students from the Upward Bound program and have aimed to pivot their education and communication skills into a new career in digital marketing, event coordination, and community building.

Brian Granger is an Assistant Professor of Physics at Cal Poly State University in San Luis Obispo, CA. He has a background in theoretical atomic, molecular and optical physics, with a Ph.D from the University of Colorado. 

Matt Greenwood is Chief Innovation Officer and Managing Director at Two Sigma Investments.

Matt Greenwood joined Two Sigma Investments in November 2003. As part of his responsibilities, Matt sets vision and direction for a number of engineering and modeling teams.

Stefan is a data scientist and applied mathematician working at MIT. He has worked at Akamai, Citrix Online, and Etsy. Currently, Stefan is working on a next-generation programming language for numerical and scientific computing, called Julia.

Mike is a Senior Software Engineer at NVIDIA working on RAPIDS and Dask. Previously, Mike was a Distinguished Machine Learning Engineering at the Capital One Center for Machine Learning, where he leads a team of engineers building scalable data science and machine learning foundational libraries for the enterprise.

Dr. Oliphant has a Ph.D. in Biomedical Engineering from the Mayo Clinic, and M.S. and B.S. degrees in Electrical Engineering (and Math) from Brigham Young University.

Fernando Pérez received his PhD in theoretical physics from the University of Colorado and did his post-doctoral work there in applied mathematics, working on fast algorithms for partial differential equations.

Gabriela de Queiroz is a Principal Cloud Advocate Manager at Microsoft. She leads and manages the Global AI/ML/Data team in Education Advocacy.

Peter has been developing commercial scientific computing and visualization software for nearly 20 years. He has extensive experience in software design and development across a broad range of areas, including 3D graphics, geophysics, large data simulation and visualization, financial risk modeling, and medical imaging.