Software Engineer Intern

Simons Foundation•New York, NY

22d•Onsite

About The Position

The Scientific Computing Core (SCC) manages supercomputing resources and provides high performance computing (HPC) expertise to all centers at the Flatiron Institute , developing tools broadly useful to the scientific community as a whole. SCC is seeking a Software Engineer Intern to apply their development skills to original computational projects. The selected candidate will have a chance to collaborate on an open-source project while learning about numerical algorithms, GPU computing, MPI, and various other high performance computing (HPC) topics. The internship will be focused on HPC, and not machine learning, though many of the techniques used can be applied to accelerate machine learning applications. The selected candidate will be on SCC premises daily to meet with their supervisor, collaborate with scientists from a broad range of disciplines, present their progress, and participate in discussions. At the completion of their projects, they will orally present their work and potentially prepare a research paper. The internship will take place in-person at the Simons Foundation's offices in New York City from June 1, 2026 - August 14, 2026. Applicable travel assistance to New York City and a supported temporary housing option while in New York City may be available. Visit the Summer at Simons page to learn more. ESSENTIAL FUNCTIONS/RESPONSIBILITIES Assist in planning and implementation of novel generic open source computational tools and broader research software. Some recent projects that are in active development include, but are not limited to: High-performance multidimensional function interpolator https://github.com/blackwer/baobzi Massively parallel fully resolved hydrodynamic simulation of cytoskeletal elements https://github.com/flatironinstitute/SkellySim Novel algorithms for fast evaluation of All-Pairs kernels https://github.com/flatironinstitute/DMK Determining energy landscapes for structures imaged using Cryogenic Electron Microscopy https://github.com/flatironinstitute/ManifoldEM Experimental JIT compilation for performance critical code in C++ https://github.com/blackwer/RuFuS Use github to organize workflow and effectively collaborate on team programming projects Use Flatiron cluster resources to profile/benchmark/test software Perform any other duties or tasks as assigned or required

Requirements

Must be a student enrolled in an accredited graduate degree program
Students enrolled in physics, mathematics, computer science, or related disciplines preferred
Written or made a major contribution to a significant project in one of the following languages: C/C++, Julia, Python, MATLAB, FORTRAN, CUDA
Basic knowledge of the Linux command line
Working expertise with object oriented programming in C++ and Python, desired
Practical experience in HPC and cluster computing topics such as MPI, GPU/CUDA and Slurm, desired
Course experience in data structures and algorithms or equivalent, desired
Basic knowledge of Git/GitHub, particularly when dealing with shared projects, desired
Must enjoy working in a research-driven environment
Desire to document code and process, deliberative decision-making.
Strong oral and written communication
Excellent collaborative and interpersonal skills
Resume or CV
Cover letter indicating your interest in the position
Applications for summer 2026 must be submitted by February 6, 2026

Responsibilities

Assist in planning and implementation of novel generic open source computational tools and broader research software.
Use github to organize workflow and effectively collaborate on team programming projects
Use Flatiron cluster resources to profile/benchmark/test software
Perform any other duties or tasks as assigned or required

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