> Markdown version of [/jobs/ext/2289261-computer-scientist-3](https://www.wearedevelopers.com/jobs/ext/2289261-computer-scientist-3). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Computer Scientist 3 - **Company:** Pacific Northwest National Laboratory - **Location:** Atlanta, GA, United States - **Salary:** $122,100.0 - **Contract:** Temporary contract - **Skills:** Abstraction Layers, C++ (Programming Language), Cloud Computing, Code Review, Nvidia CUDA, Continuous Integration, Software Tools, Software Engineering, Performance Testing, Free and Open-Source Software, Build Tools, Software Version Control, Surface Modeling - **Published:** August 29, 2026 - **Apply:** https://www.atlantacareerpath.com/job.asp?id=3369507291&tx=FP3128FFP&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * BS/BA and 5+ years of relevant experience -OR- * MS/MA and 3+ years of relevant experience -OR- * PhD with 1+ year of relevant experience, * PhD in Computational Science, Engineering, Applied Mathematics, Atmospheric Science, or closely related field. * Demonstrated experience in scientific software development. * Demonstrated hands-on experience and leadership in developing production-quality scientific/engineering software in C++ for high-performance computing environments. * Proven experience porting and optimizing scientific codes for GPU architectures (CUDA, HIP, SYCL, or portable abstraction layers). * Experience deploying and validating large-scale simulation codes on DOE HPC systems. * Experience with the AMReXframework or comparable block-structured adaptive mesh refinement (AMR) libraries. * Experience developing, extending, or deploying the ERF model. * Strong software engineering practices: version control, testing/CI, code review, and technical documentation. * Excellent written and verbal communication skills, with a record of technical publications and/or open-source software contributions. * Expertise in compressible dynamical core numerics for atmospheric or geophysical flow modeling. * Track record of peer-reviewed publications on atmospheric models. * Experience mentoring students/postdocs and contributing to multi-institution DOE software projects. Hazardous Working Conditions/Environment ## Description The Atmospheric, Climate, and Earth Sciences Division is seeking a Computer Scientist who: * Designs and develops computers and computational systems, including both hardware and software, with a focus on architectures, languages, and applications. * Researches and advances theories of computation, including the design and efficiency of algorithms and how humans interact with computers and computing processes. * Develops work products including new theories and technical advances in the field. * Lead software engineering and development efforts for the Energy Research and Forecasting (ERF) model, a GPU-enabled, compressible atmospheric flow solver built on the AMReX adaptive mesh refinement framework. * Design, develop, and maintain performant, portable numerical algorithms for atmospheric dynamical cores, ensuring correctness and efficiency across CPU and GPU architectures. * Lead GPU hardware portability efforts, optimizing ERF for heterogeneous DOE exascale and pre-exascale systems (e.g., NVIDIA, AMD, and Intel GPU platforms). * Oversee deployment, build systems, continuous integration, and performance validation of AMReX-based models on DOE high-performance computing (HPC) systems (e.g., Frontier, Perlmutter, Aurora, and PNNL institutional computing resources). * Collaborate with the multi-institution ERF development team to extend model capabilities, including terrain representation, urban simulation, land surface modeling, atmospheric chemistry, aerosols, and cloud microphysics. * Mentor junior software engineers and postdoctoral researchers contributing to ERF and related AMReX-based codes; contribute to code review, documentation, and open-source software practices. * Author and co-author technical publications, scientific publications, software releases and present ERF capabilities at DOE program reviews and scientific conferences. ## Related Videos - [Coffee with Developers - Stephen Jones - NVIDIA](https://www.wearedevelopers.com/videos/1303-coffee-with-developers-stephen-jones-nvidia) - [Accelerating Python on GPUs](https://www.wearedevelopers.com/videos/859-accelerating-python-on-gpus) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [The weekly developer show: Boosting Python with CUDA, CSS Updates & Navigating New Tech Stacks](https://www.wearedevelopers.com/videos/1293-the-weekly-developer-show-boosting-python-with-cuda-css-updates-navigating-new-tech-stacks) - [Building a framework-independent component library](https://www.wearedevelopers.com/videos/1679-building-a-framework-independent-component-library) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Top 6 Hackathons for Developers in 2023](https://www.wearedevelopers.com/magazine/263-top-6-hackathons-for-developers-in-2023) - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [7 Cloud Computing Trends Coming in 2025 for Developers](https://www.wearedevelopers.com/magazine/412-7-cloud-computing-trends-coming-in-2025-for-developers)