Singularity/Apptainer) to integrate libraries and SDKs like MPI, CUDA, BLAS, or FFTWFamiliarity with version control systems for managing configurations and custom package definitionsKnowledge of the installation, management, and the use of software such as compilers, scientific applications, and job resource managersExperience with CI pipelinesProficiency in scripting and programming languages such as Python (for Spack package definitions and automation)Strong knowledge of build systems (e.g., Make, CMake, Autotools) and compilers (e.g., GCC, Intel, LLVM) for handling dependencies in Spack-managed stacksAbility to configure and use YAML-based files for Spack environmentsProficiency with podman or similar container-based build environmentsProblem-solving skills for debugging dependency conflictsExperience working in collaborative teams, including refining user requirements and supporting researchers in scientific computing settingsAbility to model Argonne's core values of impact, safety, respect, integrity and teamworkTo perform the essential functions of this position successful applicants must provide proof of U.S. citizenship, which is required to comply with federal regulations and contract. Position RequirementsStrong background in Linux systems administration, including cluster management, performance tuning, and resource allocation in HPC settingsExperience with package managers like Spack for software deployment, including building from source, resolving dependencies, and maintaining multiple versions in a production HPC settingExperience creating and managing programming environments, such as environment modules (e.g., Lmod or Environment Modules) or containers (e.g.