Jarrett Keifer

Jarrett Keifer is a Senior Geospatial Software Engineer at Element 84, a commercial geospatial consultancy that uses open-source to build effective customer solutions. His interests include education and outreach, geospatial data formats, and high-performance systems/network programming. He enjoys designing systems to operate at scale, particularly to support remote sensing data processing and earth science applications, and has over ten years of experience contributing to open source projects.


Sessions

11-03
13:00
180min
Exploring Cloud-Native Geospatial Formats: Hands-on with Raster Data
Jarrett Keifer

Dig into cloud-native raster formats—COGs, Zarr, and Kerchunk—and learn how data access works under the hood with hands-on Python exercises, no image libraries required!

Image Processing
Regency Ballroom A
11-04
11:30
30min
Is Zarr the new COG?
Jarrett Keifer, Julia Signell

Zarr is gaining traction in geospatial workflows—but is it replacing COG, complementing it, or something else entirely? We’ll unpack the formats’ shared foundations, explore their tradeoffs, and offer a path toward better community guidance, tooling, and support.

Data Management and Interoperability
Regency Ballroom B
11-04
14:00
30min
State of STAPI: A community tasking standard
Matthew Hanson, Jarrett Keifer

Explore STAPI, a specification for a Sensor Tasking API. We’ll highlight recent developments, showcase the open-source projects being developed in the ecosystem, and share the community's vision of increased interoperability driving the next generation of geospatial workflows.

State of Software
Regency Ballroom B
11-04
14:30
30min
(Re)Making Cirrus: Five Years Building a Data Orchestration Framework
Jarrett Keifer

A retrospective on building cirrus, a cloud-native framework for building STAC-based data orchestration pipelines. We'll look at the design and architecture evolution over five years of development and some lessons learned adapting to ecosystem and requirement changes.

State of Software
Lake Audubon