Hybrid Scientific Applications Programmer

at RedLine Performance Solutions, LLC

• Job title: Scientific Applications Programmer
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Cloud, Docker, Linux, Python, Shell Scripting
• Location requirements: Hybrid, College Park, United States

About the role

• Scientific Applications Programmer supporting the Environmental Modeling Center for weather prediction. Developing workflows and tools for mission-critical weather prediction systems with a collaborative team environment.

Responsibilities

• support the Environmental Modeling Center (EMC) of the National Centers for Environmental Prediction (NCEP)
• carry out research, development, and operational transition of ingest, processing, quality control, and handling of environmental observations
• develop, maintain, modernize, and expand workflows for mission-critical weather prediction systems
• work with a team of other software developers and physical scientists to develop cross-application tools
• contribute to the development of critical workflow infrastructure for major modeling systems
• comprehending and adhering to operational computing standards in support of operational code deliveries
• port workflows to new high-performance computing and/or cloud platforms
• develop user interfaces that allow scientists to easily set up experiments
• conduct profiling of performance-critical model code and identify and implement performance improvements
• maintain documentation standards that support community model development
• incorporate modern software management practices including unit testing, continuous integration, and agile development techniques
• maintain and modernize the CMake-based build systems

Requirements

• Candidates must be a U.S. Citizen or U.S. Permanent Resident (Green Card Holder)
• must have lived in the U.S. for 3-5 years prior to application
• must have the ability to obtain a Public Trust security clearance
• background in meteorology/NWP, physical sciences, mathematics, or closely related field with demonstrated numerical modeling and related scientific computing experience
• experience with data assimilation (JEDI, SOCA) is strongly preferred
• experience with ocean and sea ice models, coupled frameworks, and scientific data formats (HDF5, NetCDF, GRIB/2) are beneficial
• proficiency in shell scripting, automation (including templated approaches), version control systems (Git), and developing software in a Linux or similar environment
• expertise and demonstrated proficiency in Python and Fortran (including F95+)
• demonstrated working knowledge of modern software engineering practices (requirements gathering, design, prototyping, version control, integration, testing, and documentation)
• demonstrated experience in developing, working with, and running Earth system models or technically similar workflows on high-performance computing platforms including distributed-memory (MPI) and preferably also shared-memory (OpenMP, pthreads) parallelization
• experience with using parallel job schedulers (SLURM, PBS) is strongly preferred
• experience with using workflow managers (Rocoto, ecFlow, Cylc)
• GPU experience is a plus
• familiarity with cross-platform package management, build, and test systems, especially CMake/CTest and pip
• experience with using and developing environment modules (Tcl modules, Lmod) is strongly preferred
• experience with package managers (EasyBuild, Spack) and containers (Docker, Apptainer/Singularity, Charliecloud) is a plus
• good verbal and written communication skills in English
• ability to work effectively and professionally as part of a diverse, customer-focused team and collaborate with software engineers and scientists across different teams and agencies
• experience working in Agile/Scrum environments is preferred.

Benefits

• full benefits package including paid time off
• 401k match
• health care benefits