I build open source software, infrastructure, and communities. I'm currently a Cloud Engineer at Development Seed. Previously, I was the Open Source Lead at CarbonPlan, a postdoctoral researcher at the University of Hawaiʻi at Mānoa, and a scientist for the U.S. federal government 🧑💻. I completed a PhD researching underwater volcanoes at the MIT/WHOI Joint Program 🌋
As of September 2026, most of my working time is focused on making NASA Earth data streamable as virtual Zarr stores and shaping geospatial conventions for Zarr through GeoZarr.
- maintainer: Zarr-Python · chunked, compressed, N-dimensional arrays for Python
- core developer: VirtualiZarr · cloud-optimize your scientific data as virtual Zarr stores, using xarray syntax
- author: virtual-tiff · produce and explore virtual Zarr stores backed by TIFFs
- author: obspec-utils · utilities for interacting with object storage, based on obspec
- contributor: Icechunk · obstore · async-tiff · TiTiler · numcodecs · cubed · donfig
- chair: GeoZarr · geospatial conventions for multidimensional georeferenced grids in Zarr, plus its toolkit and examples
- co-founder: zarr-conventions · community metadata conventions for Zarr
- co-founder: proj · convention for datum and coordinate reference system
- co-founder: spatial · convention for describing the relationship between positional indexes and spatial coordinates
- co-founder: multiscales · convention for encoding multiscale pyramid information
- steering council: Pangeo · a community platform for big-data geoscience
- editorial board: Cloud-Native Geospatial Forum · growing the community of practice around cloud-native geospatial data
- past maintainer: xbatcher · batch generation from Xarray datasets
- past maintainer: ndpyramid · pyramid generation using Xarray and Zarr
- co-author: eddy-footprint · eddy covariance footprint modeling using Xarray
- contributor: Xarray · N-D labeled arrays and datasets in Python
- maintainer: titiler-multidim · TiTiler application for NetCDF/Zarr datasets
- past maintainer: PyGMT · a Pythonic interface for the Generic Mapping Tools
- past maintainer: GMT · command-line tools for manipulating geographic data and producing high-quality illustrations and animations
- Cloud-Optimized Geospatial Formats Guide · methods for generating and testing cloud-optimized geospatial formats
- Datacube Guide · helping people avoid mistakes when producing and using datacubes
- Warp Resample Profiling · exploring all the Python resampling/reprojection options
- Zarr Visualization Report · methods and benchmarks for visualizing Zarr
- 2025 · AGU Workshop: Open Source Geospatial Workflows in the Cloud · eight hours on data access, analysis, visualization, and sharing in the Python/Jupyter ecosystem
- 2024 · AGU Workshop: PyGMT · eight-hour pre-conference workshop on geospatial visualization with GMT/PyGMT
- 2024 · SciPy Xarray Tutorial · four hours on friendly, interactive, and scalable scientific data analysis
- 2022–2023 · GMT for Geodesy (EarthScope/UNAVCO) · annual short course on GMT 6 for geodesy with UNIX shell scripting
- 2022 · EGU Short Course: Crafting beautiful maps with PyGMT · for geoscientists making maps in Python
- 2021 · ESWN Workshop: Developing FOSS with PyGMT · growing participation of underrepresented groups in open source Earth science
- 2021 · UNAVCO GMT for Geodesy course · GMT 6 for geodesy with UNIX shell scripting
- 2021 · ESVI REU Program: Intro to MATLAB and Git · version control and scientific programming basics for REU students