The Heising-Simons Foundation is a family foundation based in Los Altos and San Francisco, California. The Foundation works with its many partners to advance sustainable solutions in climate and clean energy, enable groundbreaking research in science, enhance the education of our youngest learners, and support human rights for all people. The Heising-Simons Foundation is seeking a new Science Program Officer who will help manage the Foundation’s science grantmaking. This is an opportunity to learn about many fields and sub-fields within the sciences and grantmaking. The Program Officer will identify and work with prospective and existing grantees, monitor grantee progress, and explore new grantmaking areas. The primary areas of support with the Science program are astronomy and cosmology, climate change science, fundamental physics, women in physics and astronomy, and, beginning in 2021, work to increase the number of black, indigenous, and people of color in physics and astronomy in the U.S. During the COVID-19 pandemic, all Heising-Simons Foundation staff are working remotely. The Foundation will re-evaluate workplace flexibility when offices reopen later in 2021.