Applications Programmer

We are seeking two experienced Applications Programmers to support a major federal High Performance Computing (HPC) initiative as part of a competitive proposal effort. The work supports the next-generation Weather and Climate Operational Supercomputing System (WCOSS III) for the National Oceanic and Atmospheric Administration (NOAA).

This is an exciting opportunity to join a high-profile, multi-year program supporting two Cray supercomputers capable of a combined 29 petaflops — ranked among the fastest systems in the world. While the positions are remote, occasional travel to NOAA data centers may be required.

NOTE: This is a proposal position. Hiring is contingent upon contract award, anticipated in early 2026. Selected candidates may be contacted for letters of intent or to be included in the proposal submission package.

Responsibilities

Design, develop, test, debug, and document software applications for HPC environments.

Modify and optimize procedures to solve complex scientific computing challenges, accounting for system capacity, operational time, and output requirements.

Collaborate with researchers, system engineers, and stakeholders to ensure application performance and reliability.

Support the implementation and tuning of codebases across large-scale, parallel computing systems.

Troubleshoot and enhance HPC application performance using MPI, OpenMP, and related technologies.

Maintain technical documentation and follow secure coding practices.

Ensure code compatibility and performance across HPC platforms such as Cray and HPE.

Qualifications

Demonstrated experience programming in High Performance Computing environments.

Proficiency in Fortran, C/C++, Python, and scripting languages like Bash or Perl.

Experience with parallel processing frameworks (e.g., MPI, OpenMP).

Background working on scientific computing applications, ideally related to weather, climate, or ocean modeling.

Familiarity with Linux-based systems, batch schedulers (e.g., Slurm, PBS), and software version control (e.g., Git).

Prior experience with NOAA WCOSS I/II, GDIT, Redline Performance, or NOAA sub-agencies (NWS, NMFS, NOS) is a strong plus.

Bachelor’s degree in Computer Science, Engineering, or a related discipline (advanced degrees a plus).