Stellar Science is seeking several modern C++ 20/23 Software Engineers with experience creating reusable, maintainable code solving challenging math and physics problems. BS (or equivalent experience) required; MS/PhD degree desired. Join our unique, collaborative team to help implement leading-edge scientific software tools in fascinating domains including space situational/domain awareness, computer vision, directed energy, metamaterials, and biothermal modeling. Experience in any of the following is a plus: * Additional languages: Java, Python, JavaScript * Relevant libraries: Boost, Eigen, OpenCV * Cross-platform development on Linux and Windows * 3D graphics: OpenSceneGraph, OpenGL * Supercomputing: MPI, OpenMP, threads, GPUs * User interface development: Qt * Continuous integration: git, Bitbucket, Jenkins, CMake * Image processing, imagery analysis, computer vision, computer aided design (CAD) * Aerospace vehicles, orbital mechanics, electromagnetics, space domain awareness * Modeling and simulation, including directed energy Code sample or C++ evaluation required. Extremely flexible work schedule, hybrid workplace model, & generous benefits. US Citizenship required + willingness to undergo a background investigation. Active Security Clearance is a plus. Positions are in or near: Albuquerque, NM, Dayton, OH, or Tysons Corner, VA (Washington DC area.)