High Performance Computing Intern

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.

The intern will work on a project at the intersection of astronomy and high-performance computing. The project will be selected based on the intern's skills and interests, but possible directions include:

• Development of a Python software package with a compiled, parallelized backend to compute the two-point correlation function using SIMD CPU acceleration;
• Development of a Python package leveraging the Flatiron Institute Non-Uniform Fast Fourier Transform (FINUFFT) to accelerate measurement of the cosmological power spectrum;
• Contributing to the development of C++ exascale cosmological N-body simulation software.

In addition to the project work, the intern may perform other duties or tasks as assigned or required.

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.

MINIMUM QUALIFICATIONS

Education

• B.S. or M.S. in computer science, engineering or related technical discipline.

Experience

• Experience with at least one of Python, C++, and Rust is required.  Experience with both Python and a compiled language is ideal.

• Familiarity with NumPy is desired.
• Familiarity with or interest in HPC technologies like OpenMP, CUDA, CPU SIMD, or Rayon is desired.
• Familiarity with or interest in language binding technologies between Python and C++ or Rust, such as pybind11/nanobind, scikit-build-core, or maturin is desired.
• Familiarity with mathematical concepts like the Fourier transform is desired. Familiarity with or interest in physics and cosmology is ideal.

Related Skills & Other Requirements

• Must enjoy working in a vigorous research-driven environment
• Desire to document code and process, deliberative decision-making.
• Strong oral and written communication
• Excellent collaborative and interpersonal skills

REQUIRED APPLICATION MATERIALS

• Resume or CV
• Cover letter indicating your interest in the position

Application Deadline

• Applications for summer 2026 must be submitted by February 6, 2026

COMPENSATION

• This internship pays $20, $25 or $28 per hour, depending on degree level

Our Commitment to Expanding Pathways to Science & Opportunities for All:

Many of the greatest ideas and discoveries come from a diverse mix of minds, backgrounds, and experiences. The Simons Foundation is committed to advancing basic science and mathematics to benefit humankind and expand our collective understanding of our world. As part of our mission, we support partners, programs, and initiatives that seek to broaden the scientific community and open pathways to science and mathematics careers.

The Simons Foundation provides equal opportunities to all applicants without regard to race, religion, color, age, sex, pregnancy, national origin, sexual orientation, gender identity, genetic disposition, neurodiversity, disability, veteran status, or any other protected category under federal, state, and local law.